2018 International Energy Conservation Code – Residential

Energy TAC

IECC-R Code Change No.	IECC-R Section	Change Summary b/t 2015 IECC-R and 2018 IECC-R	Change Summary b/t 2017 FEC-R and 2018 IECC-R	Staff comments	
					
CE3-16, Part II	R202 (IRC N1101.6)	Modifies text of definition “Air Barrier”. Deletes definition “CONTINUOUS AIR BARRIER”. This proposal removes a redundant definition.

Cost Impact: Will not increase the cost of construction.
This proposal does not change code requirements, only updates definitions and reduces redundancy.	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to these definitions	Overlapping provision to be considered during step 2 of the code change process  
	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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CE4-16, Part II	R202 (IRC N1101.6)	Modifies text of definition Section R202 (N1101.6) “BUILDING THERMAL ENVELOPE”.  The Thermal envelope completely surrounds the house and the ceiling portion of the envelope was excluded from the previous definition. Also changes element to element assemblies.

Cost Impact: Will not increase the cost of construction.
The changes are editorial to add clarity and understanding to the definition. No new requirements are added and thus, costs are not impacted.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

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     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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CE11-16, Part II	R202 (IRC N1101.6), R202	Replaces definitions “Skylights”, “Vertical fenestration”. The definition of entrance doors needs grammatical improvements per proposal. Also change to format the Fenestration, Skylights and Vertical Fenestration definitions found in R202 in the same manner as found in C202. 

Cost Impact: Will not increase the cost of construction.
These revisions are intended for editorial clarity. There should be no impact on the cost of construction.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to these definitions	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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CE26-16, Part II	C303.1.1	Modifies text of Section R303.1.1 (N1101.10.1) “Building thermal envelope insulation”. The purpose of this change is to clarify how R-values for above deck roof insulation products are identified.

Cost Impact: Will not increase the cost of construction.
The proposed change is a clarification and does not change the stringency of existing code requirements so the cost of construction will be unchanged.
	Same as change between 2015 FEC-C and 2018 IECC		
     TAC Action

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     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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CE30-16, Part II	C303.1.3/
R303.1.2.3	Modifies text of TABLE R303.1.3(2) [N1103.10.3(2)]
DEFAULT OPAQUE DOOR U-FACTORS, Table R303.1.3R303.1.3(1) (1) “DEFAULT GLAZED WINDOW, GLASS DOOR AND SKYLIGHT U-FACTORS”. The default U-factor tables should distinguish opaque doors from glazed windows, doors and skylights. The headings in
the Tables should be revised accordingly.

Cost Impact: Will not increase the cost of construction.
The proposal involves clarifying default values and editorially changing Table headings, and thus does not affect construction costs.	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

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     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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CE65-16, Part II	R402.2.6 (IRC N1102.2.6)	Modifies text of Section R402.2.6 (N1102.2.6) “Steel-frame ceilings, walls and floors”. Changes use of word “meet” for “comply”. The use of the word "comply" interjects code language more often found throughout the codes and clarifies the intent in a slightly stronger tone.

Cost Impact: Will not increase the cost of construction.
The proposal only clarifies the intent of the code section and does not cause any increases in materials or labor for constructing the building.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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CE84-16, Part II	C402.1.3, C402.1.4, R402.2.5	Modifies text of Section R402.2.5 (N1102.1.4) “Mass walls”. Modifies Table R402.1.2 (N1102.1.2) “INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT” and Table R402.1.4 (N1102.1.4) “EQUIVALENT U-FACTORS”. Modifies Table C402.1.3 “Opaque thermal envelope insulation component minimum requirements, r-value method” and table c402.1.4 “Opaque thermal envelope assembly maximum requirements, u-factor method”. The IECC as a result of changes approved for the 2015 addressed mass walls and mass floors differently. This proposal covers both Commercial and Residential portions and would treat the information on mass walls and mass floors as technical requirements and not as definitions. Therefore the proposal removes the technical requirements from the footnotes; and places each in the proper envelope section on floors or walls.

Cost Impact: Will not increase the cost of construction.
These revisions are strictly editorial in nature. They place the technical requirements for both mass walls and mass floors in the appropriate code sections.	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

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     a.  b.  c.      d.  e.  f. 

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Accommodate Florida Specific Need:

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a.  b.  c.      d.  e.  f. 
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CE157-16, Part II	R101.4.1, R101.5	Modifies text of Section R101.4.1 “Mixed Residential and Commercial buildings” and R101.5 “Compliance”. This proposal seeks to remove confusion concerning the terms Group R and Residential. By defining 'Group R' as those having one of the IBC Group R occupancies that can occur in a Commercial building and then it either removes or replaces the word 'residential' in various provisions. Group R is already used in various places in the code, most notably the building envelope (insulation) assembly tables

Cost Impact: Will not increase the cost of construction. The intent of the proposal is editorial in nature. To the extent that people had previously interpreted 'residential' to apply to hospital patient room and nursing home sleeping units, there may be some increase in cost for envelope insulation or HVAC systems.	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

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     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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CE174-16, Part II	R403.5.2 (IRC N1103.5.2)	Modifies text of Section R403.5.2 (N1103.5.2) “Demand recirculation water systems”. Modifies text of definition “DEMAND RECIRCULATION WATER SYSTEM”. Removes language from C404.7, R403.5.2 and N1103.5.2. Changes the requirement from the pump having to have controls to the system having to have the controls.  Modifies Item 2 currently limits the water temperature of water entering the cold water piping to 'exactly' 104 degrees.

Cost Impact: Will not increase the cost of construction.
The proposal is editorial in nature. It will have no impact on the cost of construction.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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       No Action Needed 	

	

	

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CE176-16, Part II	C404.9.3, R403.10.3	Modifies text of Section R403.10.3 (N1103.10.3) “Covers”. Proposal eliminates terminology and clarifies that the intent if a pool or permanent spa utilizes a heat pump or solar energy source for more than 70% of the energy used in heating the pool or permanent spa, then one is exempt from the vapor retardant cover requirement.

Cost Impact: Will not increase the cost of construction.
This is only a clarification of the original intent of this section. This change does not require additional materials or labor for
construction.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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CE177-16, Part II	R403.10.3 (IRC N1103.10.3)	Modifies text of Section R403.10.3 (N1103.10.3) “Covers”.  Proposal revises the exception from 70% to 75%. Add in parameters for "operating season". Allow the use of other on-site renewable energy systems.

Cost Impact: Will increase the cost of construction. For this exception, since the requirement has been increased from 70% to 75%, the estimated increase in cost for this option would
be approximately 7 percent.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
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       No Action Needed 	

	

	

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CE248-16, Part II	R406.3 (N1106.3)	Modifies text of Section R406.3 (N1106.3) Energy Rating Index. Proposal provides an exception for energy used to recharge or refuel a vehicle that is used for on-road (and off-site) transportation purposes. This exception is limited to vehicles that are only used for off-site purposes that are obtaining their energy through the building energy infrastructure.

Cost Impact: Will not increase the cost of construction.
This does not change the requirements for total building performance, but clarifies what is to be excluded from scope of this section. Therefore, it will not increase the cost of construction.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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CE274-16, Part II	R501.4 (IRC N1107.4)	Modifies text of Section R501.4 to require compliance of Alterations, repairs etc., with the IECC and the Existing Building Code.

Cost Impact: Will not increase the cost of construction.
These were missing codes to the list.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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RE3-16	R202	Adds new definition “AIR-IMPERMEABLE INSULATION”. Adds new Standard “ASTM E2178-13 Standard Test Method for Air Permeance of Building Materials”. The term air permeable insulation is utilized in the IECC specifically in Table R404.1.1. Carrying this definition over to from the IRC to the IECC helps clarify what can and cannot be used in specific installation according to the code.  The proposal was further modified by the Committee to clarify that the modification was needed to correct the proposed definition to align with what is in the ASTM standards.  The as-modified proposal was approved because it is difficult to explain what is intended without a definition.

Cost Impact: Will not increase the cost of construction.
There would be no cost impact associated with this proposed definition as it is being added to create better consistency between the code families and clarity for the intent of the current code.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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RE5-16	R202 (IRC N1101.6)	Modifies text of Section R202 “(N1101.6) HIGH-EFFICACY LAMPS”. This proposal clarifies the definition to include LED lamps and other lamp technologies that may be used

Cost Impact: Will not increase the cost of construction.
This proposal only clarifies the definition and does not change any code requirements.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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RE8-16	R202 (New) [IRC N1101.6 (New)]	Adds new definition R202 (IRC N1101.6) “OPAQUE DOOR”.  Proposal to define the term Opaque Door.

Cost Impact: Will not increase the cost of construction.
The proposal clarifies the code by adding a definition for a term already used in the residential provisions. The action is essentially editorial and should have no cost implications.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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RB21-16	R301.2	Modifies text of TABLE R301.2 (1) “CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA”.  The change adds
manual j criteria to the table, so that the jurisdictions are getting manual js that are designed to the correct variables. The requirement for a manual j or an engineered equivalent has been in the code for several cycles, but we do not assist the jurisdiction nor the applicant in determining their criteria.  A jurisdiction is given the option of using table 1a or 1b from ACCA Manual J or for the jurisdiction to determine their own criteria due to their unique circumstances.

Cost Impact: Will not increase the cost of construction. This proposal will not increase the cost. This is to provide information on design parameters for the home. The information can be
obtained from ACCA Manual J's table 1a or 1b, or some jurisdictions have parameters established.
	Same as change between 2015 IRC-B and 2018 IRC-B		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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RE14-16	R401.3 (IRC N1101.14)	Modifies text of Section R401.3 (N1101.14) “Certificate (Mandatory)”. Expands party’s that can complete certificate of R401.3.

Cost Impact: Will not increase the cost of construction. This proposal will not increase cost and in fact is likely to lower cost as design professionals would now most likely not be tasked with completing this requirement of code.

	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this section	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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RE17-16	R402.1 (IRC N1102.1)	Modifies text of Section R402.1 (N1102.1) “General (Prescriptive)”. This amendment refers design of log homes to ICC400 Standard on the Design and Construction of Log
Structures (ICC400) as it is the only consensus standard for log building.

Cost Impact: Will not increase the cost of construction. Log wall construction is an alternate method of construction from the wood frame, steel frame, and concrete masonry options
addressed in the energy conservation codes. The intent is to evaluate solid wood walls rather than apply prescriptive requirements that may impact the esthetic and/or durability of the wall system. Without this change, readers may believe that they have only three options: 1.) Build with very large logs, 2.) Add insulation to the outside, or 3.) Add insulation to the inside

Option 1: Prescriptive mass wall R-values set minimum log widths that are not commonly available, require greater cost to build, and cannot be milled by equipment used today. These factors will constrict the industry to the high-end custom home market. It will cause the existing log home inventory significant undue stress as owners of otherwise energy efficient log homes will be pressed to insulate their nominal 6" log walls (average width of 5"-5.5"). A survey of the industry indicates that a 10" round/8x nominal or smaller covers 80% of the log home products built and in production in climate zones 5-8, which is over 55% of the log home market. The 10" round/8x nominal log size equates to an average log width of about 7"-7.5".

Option 2: This would be consistent with the details for cross-laminated timber (CLT).

Option 3: It should be noted that adding insulation to the inside of a log wall is not recommended as it restricts the benefits of mass wall effects while eliminating the opportunity for inspection that may otherwise identify a need for maintenance.
All three options are extremely costly as opposed to trade-offs in the building thermal envelope, which is why most log home
companies use REScheck for compliance. This can help keep the log width to a size that is economical for production, builder and home owner. Therefore the cost of construction can actually be reduced by evaluating log walls by measures other than prescriptive wall R-value (R/inch of wood).
Effect of the proposed amendment on the cost of design: __ Increase __ Reduce XXX No Effect
Effect of the proposed amendment on the cost of construction: __ Increase XXX Reduce __ No Effect
Is the amendment proposal more or less restrictive than the I-Codes? __ More __ Less XXX Same	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
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       No Action Needed 	

	

	

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RE22-16	Table R402.1.2 (IRC Table N1102.1.2)	Modifies text of Section (N1102.1.2) “INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT”. This proposal improves the effectiveness of heated (radiant) slab insulation.

Cost Impact: Will increase the cost of construction. That this proposal may increase cost is debatable. In many cases, radiant slabs are insulated with sub-slab insulation as a matter of good practice and this is obvious to many who use them. In fact, at least some states already require the use of sub-slab insulation with heated radiant slabs. This proposal will also decrease long-term costs of operating a heated slab in comparison to use of an unheated slab with perimeter insulation only. There are also practical and cost-saving advantages of not increasing perimeter insulation thickness, particularly when placed in its most effective location on the exterior side of the slab edge.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
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       No Action Needed 	

	

	

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RE31-16	Table R402.1.2 (IRC Table N1101.1.2), R402.1.4 (IRC Table N1101.1.4)	Modifies text of Table R402.1.2 (N1102.1.2) “INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT”. This code change proposal considers improving maximum allowable fenestration U-factors to match older ENERGY
STAR specifications where data indicate there is substantial market penetration.

Cost Impact: Will not increase the cost of construction. 
Cost Impact: Data collected by DOE indicates an incremental cost of $0.18/ft2 for a window with a U-factor of 0.30 compared
to a window with a U-factor of 0.35.[3] The present analysis conservatively assumes the same incremental cost of $0.18/ft2 for windows with a U-factor of 0.32 compared to windows with a U-factor of 0.35.

Cost-effectiveness: Assuming windows have a useful life of 30 years, an evaluation of the life-cycle cost savings of these
improved levels over the 2015 IECC requirements using DOE's cost-effectiveness methodology shows positive life-cycle cost
savings in climate zones 3 to 8. Life-cycle savings range from about $16 in zone 3 to $388 in zone 8.
	Same as change between 2015 IECC-R and 2018 IECC-R	This change has no impact on Florida.  This change is limited to Zones 3 through 8. 	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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RE40-16	R402.2.2 (IRC N1102.2.2)	Modifies text of Section R402.2.2 (N1102.2.2) “Ceilings without attic spaces”. The proposal editorial in that it does not
change the insulation requirements, but reorganizes the text in R402.2.2 to match the format and style used on R402.2.1. Provides clear direction on where the thicker insulation requirement is needed.  The code change was further modified by the Committee. The modification was made to eliminate further correlation problems should the greater insulation levels
change. 

Cost Impact: Will not increase the cost of construction.
The proposal is an editorial reorganization for clarification of current requirements. Thus, the cost of construction is not changed.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
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RE53-16	Table R402.2.6 (IRC Table N1102.2.6)	Modifies text of Table R402.2.6 (N1102.2.6) “STEEL-FRAME CEILING, WALL AND FLOOR INSULATION (R-VALUE)”. This proposal corrects an inconsistency in the code by eliminating two conflicting entries in the code for R21 insulation on
a steel wall when using the table that establishes equivalency with a wood stud wall with R-13+0 insulation.

Cost Impact: Will increase the cost of construction. An additional R-1 of continuous insulation will be required under this proposal if a designer selects R-19 cavity insulation. The extra cost could be offset by a lower continuous insulation value for R-21 cavity insulation for these assemblies. Unfortunately, this is necessary to address an error in the public comment that was approved with EC66-09/10.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
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       No Action Needed 	

	

	

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RE64-16	Table R402.4.1.1 (IRC Table N1102.4.1.1)	Modifies text of Table R402.4.1.1 (N1102.4.1.1) “AIR BARRIER AND INSULATION INSTALLATION”. Per committee reasoning, Sealing of the ductwork to the membrane (wall, floor and ceiling) is an issue that does need to be addressed.

Cost Impact: Will not increase the cost of construction. This proposal only clarifies the intent of the code. There is no additional materials or labor costs associated as this work is what the current code intends.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE65-16	Table R402.4.1.1 (IRC Table N1102.4.1.1)	Modifies text of Table R402.4.1.1 (N1102.4.1.1) “AIR BARRIER AND INSULATION INSTALLATION”. Per reasoning, the intent of the code is that whatever the finish surface, penetrations must be sealed to it. Per committee, not all finishes are drywall so this is an appropriate change.

Cost Impact: Will not increase the cost of construction. This proposal only clarifies the code provision for sealing. As this is only a clarification, there is no additional cost associated with
this proposed change
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE71-16	Table R402.4.1.1 (IRC Table N1102.4.1.1)	Modifies text of table R402.4.1.1 (N1102.4.1.1) “AIR BARRIER AND INSULATION INSTALLATION”. Proposal changes HVAC register boots section, such that forced air passes through a supply boot a portion of that air is directed into building cavities the boot penetrates.

Cost Impact: Will increase the cost of construction. There is a minimal cost impact associated with this proposal. The duct system is already being sealed with mastic to meet the duct leakage requirements of the code and the additional mastic installation needed to seal a supply boot to the subfloor is small.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE83-16	R402.4.1.2 (IRC N1102.4.1.2)	Modifies text of Section R402.4.1.2 (N1102.4.1.2) “Testing”. Adds new standard “BRS/RESNET/ICC 380-2016 Standard for Testing Airtightness of Building Enclosures, Airtightness of
Heating and Cooling Air Distribution Systems and Airflow of Mechanical Ventilation Systems”. Adds BSR/RESNET/ICC 380-2016 to provide for needed guidance for performing envelope air leakage, duct leakage and air flow testing. Building off of existing standards (e.g. ASTM E779-10) the standard allows for multiple test procedures to provide flexibility for the testing industry.  The proposal further modified by the Committee to reference ASTM E779 or ASTM E1827 and retain details that RESNET 380 might not have in it.

Cost Impact: Will not increase the cost of construction. RESNET Standard 380 allows for single point testing to demonstrate compliance with the air leakage requirements verses multipoint testing now required by E 779. The results of the two tests, as described in the reason statement, are comparable so that a house constructed to meet the E 779 standard will cost no different than a house constructed to meet Standard 380. The code change may lead to a reduction in the costs to conduct the tests as the envelope testing industry may charge more for a multi-point test than a single-point test given the time needed for the multi-point test.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this section	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE84-16	R402.4.1.2 (IRC N1102.4.1.2)	Modifies text of Section R402.4.1.2 (N1102.4.1.2) “Testing”. Replaces the reference to "doors" with a reference to "terminations". Permits interior or exterior terminations to be sealed. Removes the reference to "heat recovery ventilators". Removes the requirement to "close" the termination.

Cost Impact: Will not increase the cost of construction. This change increases flexibility for conducting the blower door test and can potentially reduce associated costs.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

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RE90-16	R402.4.2 (IRC N1102.4.2)	Modifies text of Section R402.4.2 (N1102.4.2) “Fireplaces”. UL 907 is not a useful standard for the purpose of this code requirement, proposal to remove this requirement.

Cost Impact: Will not increase the cost of construction.
This proposal will lower costs down by not having a requirement for a product to meet a non-usable, non-useful standard.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

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RE99-16	R403.3 (IRC N1103.3), R403.3.6 (New) [IRC N1103.3.6 (New)]	Modifies text of Section R403.3 “Ducts”. Adds new Section 403.3.6 “Ducts buried within ceiling insulation”. There have been concerns about burying duct work in a hot humid climate (climate zones 1A, 2A, 3A) where there is an increase in the chances of condensation on the vapor retarder around the duct insulation. In order to prevent condensation in the
humid climate zones, R-18 duct insulation is required rather than R-8 insulated duct. Condensation on the exterior of the duct  insulation can be prevented by an R-18 fiberglass duct with an exterior vapor retarder or a duct with less (or no) insulation that is encapsulated in a vapor retardant foam that meets the duct requirements of the IRC mechanical section or the IMC.

Cost Impact: Will not increase the cost of construction.
This proposal provides a new option that will increase the energy efficiency of a house with ducts in an attic without additional cost in most situations.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

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RE100-16	R403.3 (IRC N1103.3), R403.3.6 (New) [IRC N1103.3.6 (New)], R403.3.7 (New) [(IRC
N1103.3.7 (New)]	Modifies text of Section R403.3 (N1102.3) “Ducts”. Adds new Section R403.3.6 (N1103.3.6) “Ducts buried within ceiling insulation” and “R403.3.7 (N1103.3.7) Ducts located in conditioned space”. In addition to allowing ducts to be buried within attic insulation, this proposal sets alternate requirements for ducts to be considered within conditioned space. Under R403.3.7 provides for the traditional code definition of being within conditioned space. However, item "2" in the
proposal provides the DOE comparable performance alternative for extremely tight ducts with a full complement of insulation, and with provision for condensation avoidance for humid climates.

Cost Impact: Will not increase the cost of construction. This proposal provides a new option that will likely reduce the cost of construction and increase the energy efficiency of a house with ducts in an attic. Burying ducts in insulation and tightly sealing the ducts is a less expensive and more energy efficient solution than creating a conditioned attic. Additionally, it is often a more practical and homeowner friendly solution than installing bulkheads in the ceiling to keep ducts in conditioned space.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE102-16	R403.3.2 (IRC N1103.3.2)	Modifies text of Section R403.3.2 (N1103.3.2) “Sealing (Mandatory)”. Removes exception from R403.3.2. Per reasoning, the most appropriate location to address the sealing exceptions for ductwork is within the mechanical section of the
code, where the whole criteria and exceptions are called out.

Cost Impact: Will not increase the cost of construction.
The code change proposal will not change the cost of construction. Code requirements are not proposed to be changed, rather clarified as to the intent of the current code.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this section	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE105-16	R403.3.3 (IRC N1103.3.3)	Modifies text of Section R403.3.3 (N1103.3.3) “Duct testing (Mandatory)”. This section contains requirements for testing dwelling units' primary heating or cooling system ducts. This proposed change clarifies that H/ERV systems that are ducted separately from ducts serving heating or cooling systems are not required to have their ducts tested.

Cost Impact: Will not increase the cost of construction. This change is a clarification only and will not increase the cost of construction.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this section	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE110-16	R403.3 (IRC N1103.3), R403.3.6 (New) [IRC N1103.3.6 (New)], R403.3.7 (New) [(IRC
N1103.3.7 (New)]	Modifies text of Section R403.3 (N1103.3) “Ducts”. Adds new section R403.3.6.1 (N1103.6.1) “Deeply buried duct effective R-value”. The proposal, in addition to allowing ducts to be installed within ceiling insulation, also provides additional effective insulation credit for ducts deeply buried (more than 3 1/2" under insulation) to claim an effective R-value of R-25. Proposal modified by committee because of previously heard proposal.

Cost Impact: Will not increase the cost of construction. This new section creates an option to installing ducts. It is generally less expensive to bury a duct than suspend a duct system installed in an attic. In addition, there is an energy efficiency credit available for ducts that are buried providing further reduction in installed cost of other efficiency measures that may no longer be necessary.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE121-16	R403.6.1 (IRC N1103.6.1), Table R403.6.1 (IRC Table N1103.6.1)	Modifies text of Section R403.6.1 (N1103.6.1) “Whole-house mechanical ventilation system fan efficacy”. R403.6.1 (N1103.6.1) “WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACY”. This proposal introduces a minimum fan efficacy for H/ERVs.

Cost Impact: Will not increase the cost of construction. At the levels proposed, fan efficacy is not a major driver of price. Low-cost H/ERVs are available at the efficacy level proposed.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE126-16	R404.1 (IRC N1104.1)	Modifies text of Section R404.1 “Lighting equipment (Mandatory)”. Proposal to remove exception as it is obsolete.

Cost Impact: Will not increase the cost of construction.
There is no correlation between the voltage of a lighting fixture ("low-voltage" or otherwise) and the cost of a lighting fixture.
Therefore, the removal of the exemption will have no impact of the cost of construction. The removal of the exemption will not
require the purchase of light fixtures that are more expensive than would be purchased with the exemption in place.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

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RE127-16	R404.1 (IRC N1104.1)	Modifies text of Section R404.1 (N1104.1) “Lighting equipment (Mandatory)”. Raises the minimum lighting efficacy from 75% to 90%. The price of high-efficacy lighting is now competitive with other lighting as more and more products such as CFLs and LEDs saturate the market. The life-cycle costs of LEDs are significantly lower than any conventional lamp or light fixture.

Cost Impact: Will not increase the cost of construction.
The price of high-efficacy lighting is now competitive with other lighting as more and more products such as CFLs and LEDs
saturate the market. The life-cycle costs of LEDs are significantly lower than any conventional lamp or light fixture.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE132-16	R405.1 (IRC N1101.5)	Modifies text of Section R405.1 (N1105.1) “Scope”. This proposed change corrects a contradiction in the current code. Section R405.1 states that energy analysis for the
Simulated Performance Alternative compliance path is to include only heating, cooling, and water heating energy (i.e., mechanical ventilation is not included). However, Table R405.5.2(1) clearly includes specifications for mechanical ventilation.

Cost Impact: Will not increase the cost of construction.
This change has no cost impact because it does not change requirements, but rather clarifies the intent of the current code.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE140-16	R405.3 (IRC N1105.3)	Modifies text of Section R405.3 (N1105.3) “Performance-based compliance”. This proposal updates the reference to the DOE Energy Information Administration's current publications of state energy pricing data.

Cost Impact: Will not increase the cost of construction. This is merely an update to an information source that can be used as part of a performance-based compliance path, does not
change any requirements in the code, and does not affect the cost of construction.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this section	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE142-16	R405.4.2	Modifies text of Section table R405.4.2 (N1105.4.2) “Compliance report”. Per reasoning: Sampling is a process of testing/evaluating one unit in a batch of 7 multiple like units to determine if all seven of the units would pass the intent of Code. The reality is that single family and attached housing, town houses and duplexes, are not like units even when they have the same model number and have been built off of the same plan. Our construction processes are not true assembly line processes so for the purpose of code compliance batch sampling should continue not to be allowed for these types of housing. Multifamily stacked housing, on the other hand, is basically one large building that has been subdivided into multiple smaller units. Batch sampling is ideal for this type of construction.
 
Cost Impact: Will not increase the cost of construction. Sampling of stacked multifamily units is more cost effective than testing each unit while at the same time ensuring that the
inspection process for code compliance is valid as intended.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE143-16	Table R405.5.2(1) [IRC Table N1105.5.2(1)]	Modifies text of Table R405.5.2(1) [(N1105.5.2(1)] “SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS”. The purpose of this proposal is to remove an inconsistency in the code concerning language listed for Air Exchange rate.

Cost Impact: Will not increase the cost of construction. Since the code requirements are not proposed to be changed, this proposal will not affect the cost of construction.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this item of the Table	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE149-16	Table R405.5.2 [IRC Table N1105.5.2(1)]	Modifies text of Table R405.5.2(1) [N1105.5.2(1)]
“SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS”.  This change simply corrects the equation for the energy calculation of the mechanical ventilation system. There is no effect on
system cost.

Cost Impact: Will not increase the cost of construction.
This change simply corrects the equation for the energy calculation of the mechanical ventilation system. There is no effect on system cost.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE152-16	Table R405.5.2(1) [IRC Table N1105.5.2(1)]	Modifies text of table R405.5.2 (1) [N1105.5.2(1)] “SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS”. In the Thermal distribution systems row of the table, adds an exception for “non-ducted heating and cooling systems not having a fan”.

Cost Impact: Will not increase the cost of construction. This proposal does not require the purchase of any additional materials and or the expenditure of any additional labor, accordingly, it will have no impact on the cost of construction.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to this item of the Table	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

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RE166-16	R406.3 (IRC N1106.3), R406.3.1 (IRC N1106.3.1), R406.6.1 (IRC N1106.6.1), R406.7 (IRC
N1106.7), R406.7.1 (IRC N1106.7.1), R406.7.2 (IRC N1106.7.2), R406.7.3 (IRC N1106.7.3)	Modifies text of Section R406.3 (N1106.3) “Energy Rating Index”, R406.6.1 (N1106.6.1) “Compliance software tools”, R406.6.4 (N1106.6.4) “Specific approval”, R406.6.5 (N1106.6.5) “Input values”. Deletes R406.3.1 (N1106.3.1) “ERI reference design”. R406.7 (N1106.7) “Calculation software tools”. R406.7.1 (N1106.7.1) “Minimum capabilities”. Adds new standard “ANSI/RESNET/ICC 301-2014 Standard for the Calculation and Labeling of the Energy Performance of
Low-Rise Residential Buildings using an Energy Rating Index First Published March 7, 2014 Republished January 2016”. 

Modification made per Public comment: As written the ERI ventilation rate specification is in conflict with the ventilation rate specified by the IRC. The current language references ANSI/RESNET/ICC Standard 301 which references the ASHRAE 62.2-2013. The ventilation rate in the ASHRAE Standard 62.2 is significantly higher than the ventilation rate in the IRC. The IRC rate was reaffirmed in Group A changes this code cycle. Without this ventilation rate correction, the higher ventilation rate would use more energy unnecessarily
and thereby increase ERI scores for no good reason.  interestingly the ASHRAE 62.2-2010 used the same rate as is in the current IRC.

Cost Impact: Will not increase the cost of construction.
This proposal references RESNET/ICC – 301 RESNET/ICC – 301 and strikes all language in C406 that is duplicated in the
Standard or that is no longer needed in the code because the concept is covered in the Standard. Per reasoning: The collaborative team based the existing ERI code language on the yet to be approved standard ANSI/RESNET/ICC-301, now completed this proposal adds in that standard and language. As stated in the Reason Statement, the ERI approach submitted during the 2015 IECC code development cycle (RE188-13) was based on the yet to be approved Standard 301. The ERI values that populate Table R406.4 were calculated and based on the protocol described in Standard 301 so referencing this standard will not lead to an increase in the stringency of the ERI values and will not result in an increase in first cost for the construction of the house. This proposal DOES NOT propose to change the Section R406.2 requirements for Mandatory Requirements or the 2009 IECC as minimum requirement which would increase first cost. The
Energy Rating Index described in Section R406.3 is consistent with Standard 301. The requirements for Calculation Software Tools in Section R406.7 will not increase the cost to develop software as the requirements are consistent with the requirements in Standard 301. Standard 301 does not place additional requirements into C406 but provides a standardized method for generating ERI scores and demonstrating compliance with the R406.
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to some of these sections 	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE173-16	Table R406.4 (IRC Table N1106.4)	Modifies text of Table R406.4 (N1106.4) “MAXIMUM ENERGY RATING INDEX”.  Per reasoning: Proposal is intended to produce substantial additional energy savings compared to the current or proposed levels of prescriptive requirements in the 2015 IECC, while allowing considerably greater flexibility to builders using a method with which a large segment of the market is already familiar. This flexibility is likely to result in lower construction costs for any given level of energy efficiency. The revised ERI values in the proposal were based on an additional 10 percent savings beyond 2012 with 2014 NAECA HVAC and water heating equipment efficiencies. The values can also be achieved using heating, cooling, and water heating equipment efficiency levels higher than NAECA minimum levels in the Northern and Southern parts of the country. The resulting ERI values are considered cost effective in all climate zones and will result in increased efficiency for residential construction over the 2012 IECC.

Modification by public comment specifies eligible and mandatory requirements for compliance under the ERI.

Cost Impact: Will not increase the cost of construction. Because this proposal provides more flexibility, it is likely to result in lower construction costs for any given level of energy efficiency
	This change is not similar to that of the FEC-R. The FEC-R provides for Florida specific changes to some of these sections for consistency with Florida Statutes.	Overlapping provision to be considered during step 2 of the code change process  	
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE183-16	R502.1.1.2 (IRC N1108.1.1.2), R503.1.2 (IRC N1109.1.2)	Modifies text of Section R502.1.1.2 (N1108.1.1.2) “Heating and cooling systems”, R503.1.2 (N1109.1.2) “Heating and cooling systems”. Changing reference to Sections subsections of R403 to the entire section.

Cost Impact: Will increase the cost of construction. There would likely be a cost for having a load calculation done or for piping insulation to be done or whatever requirement would
have normally applied had the building been new but no longer applies because the building isn't new, even though the equipment is.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE184-16	R503.1.1.1 (IRC N1109.1.1.1)	Modifies text of Section R503.1.1.1 (N1109.1.1.1) “Replacement fenestration”. The purpose of this code proposal is to clarify that the weighted average performance of replacement window units can be used for compliance purposes.

Cost Impact: Will not increase the cost of construction.
Since the code requirements are not proposed to be changed, this proposal will not affect the cost of construction.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RE187-16	Appendix RA (IRC Appendix T)	Deletes Appendix RA “(APPENDIX T) RECOMMENDED PROCEDURE FOR WORST-CASE TESTING OF ATMOSPHERIC VENTING SYSTEMS UNDER
R402.4 OR R405 CONDITIONS ≤ 5ACH”. This informational appendix is more appropriate in a standard and is not
written to be part of a code that becomes law.

Cost Impact: Will not increase the cost of construction. The code change proposal only serves to remove an optional appendix that appears to be misplaced in the IECC. As this Appendix is not a requirement, there is not a change in the cost of construction.
	Same as change between 2015 IECC-R and 2018 IECC-R		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

	

	

	

	
RM48-15	M2103.2, M2103.2.1, M2103.2.2	Modifies Section M2103.2 “Thermal barrier required.” Deletes sections M2103.2.1 and M2103.2.2. Insulation R-values should be located in Chapter 11. Proposal to address this.  The code change was further modified by the Committee.  The modification keeps the text within the IRC for user convenience.

Cost Impact: Will not increase the cost of construction.
This proposal will not increase the cost of construction as it is the first step in re-locating an existing insulation requirement from the IRC mechanical section to the IECC/Chapter 11 IRC. There is no increase in the R-value of the insulation or the installation labor.

	Same as change between 2015 IRC and 2018 IRC		
     TAC Action

     Accommodate Florida Specific Need:
     YES (Select Criteria)                                                     NO: 

 

     a.  b.  c.      d.  e.  f. 

     Others (Explain):	Commission Action

Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

a.  b.  c.      d.  e.  f. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions