2018 International Building Code  (IBC – Structural) - Roofing 

Roofing TAC

IBC-Roofing Code Change No.	IBC-Roofing Section 	Change Summary b/t 2015 IBC-R and 2018 IBC-R	Change Summary b/t 2017 IBC-R and 2018 IBC-R	Staff comments	
S1-16	1401.1, 1501.1	Revises to clarify the scoping of chapters and references needing correction from a previous code change.  The code change was further modified by the Committee. The modification does away with the proposed change to the scope of Chapter 15, retaining only the current wording. 

Cost Impact: Will not increase the cost of construction.
This code change merely clarifies the scoping of chapters and references needing correction from a previous code change and does not change any provision of the code affecting cost.	Same as change between 2015 IBC-B and 2018 IBC-B		
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     YES (Select Criteria)                                                     NO: 

 

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

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Accommodate Florida Specific Need:

YES (Select Criteria)                                                               NO: 

 

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S7-16	1510.1.1, 1510.2.1,1510.2.2, 1510.2.3	This change clarifies the intent of the code when a balcony or elevated walking surface serves as a weather resistant
barrier and the joist spaces below are enclosed, cross ventilation is required as for enclosed rafter spaces of roofs. The code change was further modified by public comment.  The public comment removed the provision for providing ventilation opening that allow inspection for decay.  

Cost Impact: Will not increase the cost of construction.
Some vent openings may need to be modified to accommodate inspection of framing material. Many vent covers that are easily removable and re-installed with hand tools already comply with the intent of this requirement.	Same as change between 2015 IBC-B and 2018 IBC-B		
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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: 

 

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G22-15	304.2, 308.2, 310.2, 402.2, 406.2, 410.2, 411.2, 412.2, 423.2, 502.1, 702.1, 802.1, 902.1,
1002.1, 1102.1, 1202.1, 1402.1, 1502.1, 1602, 1602.1, 1609.2, 1612.2, 1613.2, 1615.2, 1702.1, 1802.1,
2102.1, 2202.1, 2302.1, 2402.1, 2502.1, 2602.1, 3102.2, 3105.2, 3110.2, 404.1.1, 408.1.1, 722.1.1, [F]
307.2, [F] 415.2, [F] 421.2	Deletes definition “AMBULATORY CATR FACILITY.” Modifies Section 1602.1. There are changes to the following Definition sections of 304.2, 308.2, 310.2, 402.2, 406.2, 410.2, 411.2, 412.2, 415.2, 421.2, 423.2, 502.1, 702.1, 722.1.1, 802.1, 902.1, 1002.1, 1102.1, 1202.1, 1402.1, 1502.1, 1602, 1602.1, 1609.2,1612.2, 1613.2, 1615.2, 1702.1, 1802.1, 2102.1, 2302.1, 2402.1, 2502.1, 2602.1, 3102.2, 3105.2, 3110.2.

The intent of this proposal is to remove the definition list sections scattered about the code and the lists of defined terms
included within each such section. In general when new terms are added to Chapter 2, they rarely find themselves being added to one of these lists. Terms can be removed from Chapter 2, but don't always get removed from these lists. This proposal simply amends the sections to remove the lists and send the code users directly to Chapter 2.

Cost Impact: Will not increase the cost of construction. The proposal is purely editorial in nature and will have no impact on actual construction.
	This change is not similar to that of the FBC. The FBC 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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S2-16	1503.1, 1503.2	Modifies text of Section 1503.1 “General”, 1503.2 “Flashing.” Change to grammar concerning approved instructions. Removal of vague wording.

Cost Impact: Will not increase the cost of construction.
The proposal adds no additional mandatory requirements.
	This change is not similar to that of the FBC. The FBC 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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S8-16, Part I	1504.1.1	Modifies text of Section 1504.1.1 “Wind resistance of asphalt shingles.” This proposal is an editorial clarification that aligns the labeling requirement for the wind standards for asphalt shingles to provide consistent labeling requirements between the IRC and IBC.

Cost Impact: Will not increase the cost of construction.
The proposal is editorial and adds no new requirements.
	This change is not similar to that of the FBC. The FBC 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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S14-16 	1504.1.1, 1504.3.3	Revises Table 1501.1.1 “CLASSIFICATION OF STEEP SLOPE ROOF SHINGLES TESTED IN ACCORDANCE WITH ASTM D7158 OR D 3161.” Adds new Section 1504.3.3 “Metal roof shingles.” Adds new standard “ASTM D3161/D3161M-15: Standard Test Method for Wind-Resistance of Steep Slope Roofing Products (Fan-Induced Method)”

This proposal separates "metal roof shingles" as a separate line item product in Section 1504, specifically under the nonballasted roof systems provisions. This proposal also modifies the title of Table 1504.1.1 only as the table is appropriate to steep slope roofs other than asphalt shingles based on the modifications that first appeared in the 2013 Edition of ASTM Standard D3161. This proposal further modifies the ASTM standard to the 2015 edition.

Cost Impact: Will not increase the cost of construction.
This proposal would allow an alternate testing method which should add no cost to construction.
	This change is not similar to that of the FBC. The FBC 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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S56-16	Section: 1602.1, 1603.1, 1603.1.4, 1609.1.1, 1609.1.1.1, 1609.1.2.2, 1609.2, 1609.3, 1609.3(3) (New),
1609.3(5) (New), 1609.3(6) (New), 1609.3(7) (New), 1609.3(8) (New), 1609.3.1, 202, 2308.2.4, 2404.1,
2404.2, 2404.3.1, 2404.3.3, 2404.3.5, 2405.5.2	Modifies text of Section 1602.1 “Definitions”, Section 1603.1 “General.” 1603.1.4 “Wind design data”, 1609.1.1 “Determination of wind loads”, 1609.1.1.1 “Applicability”, 1609.1.2.2 “Application of ASTM E 1996”, 1609.2 “Definitions - HURRICANE-PRONE REGIONS, WIND-BORNE DEBRIS REGION, BASIC WIND SPEED, Vult, ALLOWABLE STRESS WIND SPEED, Vasd. Section 1609.3 “Basic design wind speed.” Modifies text of Figure 1609.3(1), FIGURE 1609.3(2), FIGURE 1609.3(3), FIGURE 1609.3(4), FIGURE 1609.3(5), FIGURE 1609.3(6), FIGURE 1609.3(7), FIGURE 1609.3(8). Modifies text of Section 1609.3.1 “Wind speed conversion.” Modifies Table 1609.3.1.  Modifies text of definitions 2308.2.4 “Basic wind speed”, 2404.1 “Vertical glass”, 2404.2 “Sloped glass”, 2404.3.1 “Vertical wired glass”, 2404.3.3 “Vertical patterned glass.” 2404.3.5 “Vertical sandblasted glass”, SECTION 2405 “SLOPED GLAZING AND SKYLIGHTS.”

This proposal is a coordination proposal to bring the 2018 IBC up to date with the provision of the 2016 edition of ASCE 7
Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE 7-16). The changes proposed in all sections harmonizes terminology between the code and the loading standard. In all instances the word "ultimate" is changed to "basic" and the subscript "ult" is removed from the variable "V". Similarly, the word "nominal" is changed to "allowable stress" in all placed to be consistent with the terminology used in the loading standard. The increase in distance in 1609.1.1.1 Applicability to 2 miles from 1 mile is also to correct the discrepancy between the code and ASCE 7.  The design wind speed maps have been updated to reflect the maps adopted into ASCE 7-16.

Committee Reason modified original proposal. Updates the IBC wind load provisions for coordination with the latest edition of the referenced standard, ASCE 7 which was updated in ADM94-16. These terminology updates are very important to capture in the IBC. The modification picks up additional coordination with IBC wind requirements that were not in the original proposal.

Cost Impact: Will not increase the cost of construction. The proposed map changes will decrease the cost of construction in the majority of the United States. The basic design wind
speeds have been lowered at most locations on the new maps based on the latest data available, thus reducing the overall cost of construction. Along the hurricane coastline from Virginia to Texas, the wind speeds remain nearly unchanged from the current maps and thus the cost of construction will not change. There may be a very small increase in Category IV structures in some parts of the country, due to the new mean recurrence interval for Risk Category IV, which has now been separated from Risk Category III. The basic wind speeds for all four Risk Category maps decrease very significantly west of the Continental Divide. For example, in much of coastal California wind speeds decrease by as much as 16%, 15%, and 11% from the previous maps for Risk Category II, III, and IV structures, respectively. Wind speeds in the Northern Great Plains states are similar to previous maps, and wind speeds in hurricane prone regions from Virginia to Texas remain nearly unchanged. In the rest of the continental United States south and east of the Great Plains, wind speeds decrease as much as 12%, 8%, and 4% for Risk Category II, III, and IV buildings respectively. For a comparatively small number of buildings, the design wind speeds for Risk Category IV increase slightly as a result of the split of Risk Category III and IV into separate maps with different mean recurrence intervals. The wind speeds for Risk Category IV buildings increase on the order of 5% in hurricane-prone regions from Virginia to Texas. The wind speeds for
Risk Category IV buildings increase about 2% in much of Nebraska and the Dakotas and to a lesser extent in the adjacent states. This proposal coordinates the IBC with the referenced loading standard ASCE 7 Minimum Design Loads and Associated Criteria for Buildings and Other Structures. ASCE 7 will be updated from the 2010 edition to the 2016 edition as an Administrative Update to the 2018 I-Codes. As of the submission date of this code change proposal, the ASCE 7 Standards Committee has completed the committee balloting on the technical changes. The document designated ASCE 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures is expected to be completed, published, and available for purchase prior to the ICC Public Comment Hearings for Group B in October of 2016. Any person interested in obtaining a public comment copy of ASCE 7-16 may do so by contacting James Neckel at ASCE (jneckel "at" asce.org).
			
     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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S9-16	1504.2.1.1	Modifies text of 1504.2.1.1 “Overturning resistance.” Adds new standard “ASTM C1568-08(2013), Standard Test Method for Wind Resistance of Concrete and Clay Roof Tiles (Mechanical Uplift Resistance Method).” 

There are no technical changes proposed with this code change request. ASTM C1568 is simply a duplication of the relevant sections of SSTD 11-99 with regard to the mechanical uplift resistance method. This modification now references a consensus standard that will have the capability to be updated in the future, as SSTD 11 has not been updated since 1999.  This code change was further modified by the Committee.  The modification clarifies that you still have to comply with Chapter 15 as well as one of the referenced standards. 

Cost Impact: Will not increase the cost of construction. The ASTM standard replicates the current requirements of SBCCI SSTD-99, and therefore will increase the cost of construction.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

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     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: 

 

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S11-16	1504.3	Modifies text of section 1504.3 “Wind resistance of nonballasted roofs.” This proposal is being submitted to provide clarification regarding how to calculate wind loads on roof coverings. The introduction of ASCE 7-10 into the IBC, and its use of ultimate design wind speeds has caused confusion with design professionals when calculating wind loads on roof coverings.  This code change was further modified by the Committee. The modification provides the clarification that allowable stress design is permitted and that it is an option, not mandatory. 

Cost Impact: Will not increase the cost of construction.
This proposal is a clarification regarding how to calculate wind loads on roof coverings. It will have no impact on the cost of Construction.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

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     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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S18-16
Part I	1504.7, 1507.11.2, 1507.12.2, 1507.13.2	Modifies text of Section 1504.7 “Impact resistance”, 1507.11.2 “Material standards”, 1507.12.2 “Material standards”, 1507.13.2 “Material standards.” The proposal removes withdrawn Canadian standards.

Cost Impact: Will not increase the cost of construction.
The referenced standards have been withdrawn and are invalid.
	This change is not similar to that of the FBC. The FBC 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):	
    	
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S21-16	1504.8	Modifies text of Section 1504.8 “Surfacing and ballast materials in hurricane-prone regions.” This proposal removes a run on sentence to allow for more consistent interpretation and enforcement.

Cost Impact: Will not increase the cost of construction.
No increase to the cost of construction as this is a clarification of current requirements.

	This change is not similar to that of the FBC. The FBC 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):	
    	
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S2-15	1505.9, Chapter 35	Modifies text of Section 1505.9 “Rooftop mounted photovoltaic panel systems.” Add new standard “UL 2703-14, Mounting Systems, Mounting Devices, Clamping/Retention Devices, and Ground Lugs for Use with Flat-Plate Photovoltaic Modules and Panels.” The new UL 2703 standard, which is an ANSI consensus standard, provides the test method for testing multiple panels for each racking system. Either standard can be used to establish a fire classification of the photovoltaic panel system. This will provide another method to test photovoltaic systems for fire classification.

Cost Impact: Will not increase the cost of construction. 
This will provide another method to test photovoltaic systems for fire classification.
	This change is not similar to that of the FBC. The FBC 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):	
    	
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S1-15	1505.10	Modifies text of Section [BF] 1505.10 “Roof gardens and landscaped roofs.” Modification to clarify intent of the code. Also the proposed change clarifies the fire classification requirements in Section 1505 apply to roof gardens and landscaped roofs.

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.
	This change is not similar to that of the FBC. The FBC 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):	
    	
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S27-16	1507.1.1 (New), 1507.1.2 (New), 1507.2.3, 1507.3.3, 1507.4.5, 1507.5.3, 1507.5.4, 1507.6.3,
1507.6.4, 1507.7.3, 1507.7.4, 1507.8, 1507.9.3, 1507.9.4, 1507.17.3, 1507.17.4	Adds new Section. 1507.1.1 “Underlayment”, 1507.1.2 “Ice barriers”, Modifies TABLE 1507.1.1(1) “Underlayment Types”, TABLE 1507.1.1(2) “Underlayment Application”, TABLE 1507.1.1(3) “Underlayment Attachment.” TABLE 1507.8 “WOOD SHINGLE AND SHAKE INSTALLATION.”

Deletes Section 1507.2.4 “Self-adhering polymer modified bitumen sheet”, 1507.2.8 “Underlayment application”, 1507.2.8.1 “High wind attachment.” 1507.3.3.1 “Low-slope roofs”, 1507.3.3.2 “High-slope roofs”, 1507.3.3.3 “High wind attachment”, 1507.5.3.1 “Underlayment and high wind”, 1507.6.3.1 “Underlayment and high wind”, 1507.8.3.1 “Underlayment and high wind”, 1507.9.3 “Underlayment”, 1507.9.3.1 “Underlayment and high wind”, 1507.17.4 “Underlayment application”, 1507.17.4.1 “High wind attachment.”

Revises text of 1507.2.3 “Underlayment”, 1507.2.8 “Ice barrier”, 1507.3.3 “Underlayment”, 1507.4.5 “Underlayment and high wind”, 1507.5.3 “Underlayment”, 1507.5.4 “Ice barrier”, 1507.6.3 “Underlayment”, 1507.6.4 “Ice barrier”, 1507.7.3 “Underlayment”, 1507.7.4 “Ice barrier”, 1507.8.3 “Underlayment”, 1507.8.4 “Ice barrier”, 1507.9.4 “Ice barrier”, 1507.17.3 “Underlayment.”

This proposal is primarily a reorganization of the underlayment provisions contained within the IBC. Many of the roof covering provisions contain similar and overlapping requirements for underlayment type, application, and attachment This proposal relocates the underlayment requirements for each roof covering to a single section at the beginning of Section 1507. This reorganization results in three new tables that address underlayment type, application, and attachment required for each of the roof covings in the IBC that require underlayment. The reorganization proposed here was approved during the last code development cycle for the 2015 IRC. This proposal also clarifies the use of ASTM D 1970 as an underlayment.  This code change was further modified by the Committee.  The modification clarifies that metal panels do not require underlayment.

Cost Impact: Will not increase the cost of construction. Will result in an increase in cost in some areas. The wind speed trigger for the enhanced underlayment has been slightly lowered resulting in it applying to more areas. However, this change will achieve consistency with IRC with regards to underlayment.
	This change is not similar to that of the FBC. The FBC 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	
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S28-16, Part I	1507.17.4.1, 1507.2.4, 1507.2.8.1, 1507.2.9.2, 1507.3.3.3, 1507.3.9, 1507.4.5, 1507.5.3.1,
1507.5.7, 1507.6.3.1, 1507.7.3.1, 1507.8.3.1, 1507.8.8, 1507.9.3.1, 1507.9.9	Modifies text of Sections 1507.2.4 “Self-adhering polymer modified bitumen sheet”, 1507.2.8.1 “High wind attachment”, 1507.2.9.2 “Valleys”, 1507.3.9 “Flashing”, 1507.4.5 “Underlayment and high wind”, 1507.5.3.1 “Underlayment and high wind”, 1507.5.7 “Flashing”, 1507.6.3.1 “Underlayment and high wind”, 1507.7.3.1 “Underlayment and high wind”, 1507.8.3.1 “Underlayment and high wind”, 1507.8.8 “Flashing”, 1507.9.3.1 “Underlayment and high wind”, 1507.9.9 “Flashing”, 1507.17.4.1 “High wind attachment.”

The proposal adds a requirement that self-adhering underlayments bear a label to demonstrate compliance to the code. The labeling requirement for underlayments was part of a comprehensive proposal for the IRC in the past cycle; this proposal is to bring similar changes for the IBC this year.

Cost Impact: Will not increase the cost of construction. Will require products bear a label, which will add product approval costs. The IRC already contains an underlayment labeling
requirement, so the cost impact is expected to be minimal.
	This change is not similar to that of the FBC. The FBC 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	
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       No Action Needed 	

	

	

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S31-16	1507.17.4.1, 1507.2.8.1, 1507.3.3.3, 1507.4.5, 1507.5.3.1, 1507.6.3.1, 1507.7.3.1, 1507.8.3.1,
1507.9.3.1	Modifies text of 1507.2.8.1 High wind attachment., 1507.3.3.3 High wind attachment., 1507.4.5 Underlayment and high wind., Modifies text of 1507.5.3.1 “Underlayment and high wind”, 1507.6.3.1 “Underlayment and high wind”, 1507.7.3.1 “Underlayment and high wind”, 1507.8.3.1 Underlayment and high wind”, 1507.9.3.1 “Underlayment and high wind”, 1507.17.4.1 “High wind attachment.”

The IBC requirement for cap nails for attachment of roof covering underlayment in high-wind areas does not reflect commercially available cap staples successfully used in roofing material application. This proposal expands fastener alternatives to include cap staples based on testing which indicates the underlayment tears before the proposed cap staples fail.

Cost Impact: Will not increase the cost of construction. Recognition of these cap nails and staples should provide greater choice to the end user of those products that are already commercially available and allowed by the IRC.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S32-16	1507.17.4.1, 1507.2.8.1, 1507.3.3.3, 1507.4.5, 1507.5.3.1, 1507.6.3.1, 1507.7.3.1, 1507.8.3.1,
1507.9.3.1	Modifies text of 1507.2.8.1 High wind attachment., 1507.3.3.3 “High wind attachment” , 1507.4.5 “Underlayment and high wind” , 1507.5.3.1 “Underlayment and high wind” , 1507.6.3.1 “Underlayment and high wind” , 1507.7.3.1 “Underlayment and high wind”, 1507.8.3.1 “Underlayment and high wind” , 1507.9.3.1 “Underlayment and high wind” , 1507.17.4.1 “High wind attachment”. 

This code change proposal is identical to the proposal approved for the 2015 IRC. The cap nails listed for attachment of roof covering underlayment in high-wind areas does not reflect commercially available cap staples successfully used in roofing material application. IBC presently lists a minimum nail shank of 0.105". This proposal lowers the minimum shank diameter based on tests indicating that the underlayment tears prior to failure of the proposed cap nail.

Cost Impact: Will not increase the cost of construction. Recognition of these ring shank and smooth cap nails should provide greater choice to the end user of those products that are already commercially available and allowed by the IRC.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S30-16	1507.2.5	Modifies text of 1507.2.5 “Asphalt shingles.” ASTM D 225 has been withdrawn by ASTM and thus should no longer be referenced in IBC as a material standard for asphalt shingles with organic felt. The recognized standard specification for asphalt shingles is ASTM D 3462.

Cost Impact: Will not increase the cost of construction.
The proposed change does not change the stringency of existing code requirements so the cost of construction will be unchanged.

	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S39-16	1507.8.9 (New), 1507.9.9 (New)	Adds Section 1507.8.9 “Label Required’ and 1507.9.9 “Label Required”.  Labels need to be on the bundles of shakes and shingles so that building inspectors, contractors, architects, and owners can determine if the code compliant products are being installed.

Cost Impact: Will not increase the cost of construction. Most bundles of shakes and shingles are appropriately labeled now, however some non-compliant products do not have a label, leaving questions as to suitability when being installed. Labels are required by the Cedar Shake and Shingle Bureau now, so manufactures are already adding this minor cost to the distribution of the products.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S40-16	1507.9.6, 1807.1.4, 2303.1.9	Modifies text of Table 1507.9.6 “Wood Shake Material Requirements”.  Modifies text of Section 1807.1.4 “Permanent wood foundation systems” and 2303.1.9 “Preservative-treated wood”. The existing text was outdated, requiring clarification and updates to current AWPA section numbering

Cost Impact: Will not increase the cost of construction.
These changes merely clarify and update the existing text without any impact on the required specifications for materials used.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

X

     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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S43-16 Part I	1507.11.1, 1507.11.2, 1507.11.2.1 (New)	Modifies text of Section 1507.11.1 “Slope” and 1507.11.2 “Material standards”. Adds new Section 1507.11.2.1 “Base sheet”. 

The proposal includes a change to terminology for modified bitumen roofing materials for consistency with referenced
standards and industry terminology. In addition, it includes a new section permitting the use of base sheet materials that comply with ASTM D 1970, ASTM D4601, or other standards as applicable.

Cost Impact: Will not increase the cost of construction. The proposal increases product options.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

X

     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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S44-16	1507.14.2	Modifies text of Section 1507.14.2”. Revises section 1507.14.2 “Material standards”. Adds new standard “ASTM D 7425/D 7425M—11 Standard Specification for Spray Polyurethane Foam Used for Roofing Application”. The proposal adds in an alternate referenced standard applicable to spray-applied polyurethane foam insulation in roofing.

Cost Impact: Will not increase the cost of construction. The proposal increases options for material suppliers; thus will increase product availability.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

X

     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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S47-16	1507.17.2 (New)	Adds Section 1507.17.2 “Deck Slope”. This proposal revises the minimum roof deck slope for the installation of photovoltaic shingles. The minimum of 2:12 slope is in conformance with an accepted slope for these products in the International Residential Code. The section was also edited for clarity.

Cost Impact: Will not increase the cost of construction.
This proposal is a clarification of roof deck requirements for PV shingles. It does not increase the cost of construction.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S3-15	[BF] 1508.1.1, Table [BF] 1508.2	Deletes Section [BF] 1508.1.1 “Cellulosic fiberboard.” Modifies Table [BF] 1508.2 “MATERIAL STANDARDS FOR ROOF INSULATION.” The purpose of this code change is to clarify the intent of the code and to remove redundancy. As written, Section 1508.1.1 is a pointer to Chapter 23. Information in Chapter 23 related to wood fiberboard roof insulation is redundant to information already in Chapter 15 so the pointer does not serve a useful purpose.

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.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S4-15	Table [BF] 1508.2	Modifies text of Table [BF] 1508.2 “MATERIAL STANDARDS FOR ROOF INSULATION”. The purpose of this change is to update the type designations listed for the ASTM standard currently referenced in the code for composite board roof insulation

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.	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S6-15	Table [BF] 1508.2	Modifies text of Table [BF] 1508.2 “MATERIAL STANDARDS FOR ROOF INSULATION”. The purpose of this change is to add a listing for high-density polyisocyanurate board roof insulation in Table 1508.2

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.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S7-15	1510.1.1 (New), [BG] 1510.2.1, [BG] 1510.2.2, [BG] 1510.2.3	Adds new text to Section 1510.1.1 “Area limitation”. Modifies text of [BG] 1510.2.1 “Height above roof deck” and [BG] 1510.2.3 “Use limitations”. Deletes old Section [BG] 1510.2.2 “  Area limitation.”

Cost Impact: Will not increase the cost of construction.
This proposal will not increase the cost of construction because it merely reorganizes and clarifies the existing code sections.
	Same as change between 2015 IBC-B and 2018 IBC-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. 
Others (Explain):	
    	
TAC	
Cmsn.	

       No Action Needed 	

	

	

  Overlapping provisions     	

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S9-15	1510.7.3	Deletes Section [BG] 1510.7.3 “Installation.” Section 1510.7.3 is redundant with Section 1510.7.4.

Cost Impact: Will not increase the cost of construction.
Deleting redundant text will have no impact on the cost of construction.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

X

     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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G180-15
	406.7.2, TABLE 601, 603.1, 705.2.3, 803.3, 803.13.3, 1406.3, [BG] 1510.2.5, [BG] 1510.3,
3105.3, D102.2.8, IFC 803.1	Modifies text of Section 406.7.2 “Canopies”, 603.1 “Allowable materials”, 705.2.3 “Combustible projections”, 803.3 “Heavy timber exemption”, 803.13.3 “Heavy timber construction”, 1406.3 “Balconies and similar projections”, [BG] 1510.2.5 “Type of construction”, [BG] 1510.3 “Tanks”, 3105.3 “Design and construction”, D102.2.8 “Permanent canopies”, IFC Section 803.1 “General”. Modifies TABLE 601 (601) “FIRE-RESISTANCE RATING REQUIREMENTS FOR BUILDING ELEMENTS (HOURS)”

This change is a reorganization of two sections and is not intended to change the intent of the code. This code change is part 2 of a proposal to reorganize Type IV Section 602.4 and heavy timber section 2304.11. This part of the change includes references found throughout the IBC to either: Type IV construction, Section 602.4, Section 2304.11, or "heavy timber". This change should follow directly after the 602.4 change and the reason for the change is included in that reason statement. 

Cost Impact: Will not increase the cost of construction.
Since this is a reorganization of existing requirements, not the creation of new requirements, this code change will not increase the cost of construction.
	Same as change between 2015 IBC-B and 2018 IBC-B		
     TAC Action

X

     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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S49-16	[BG] 1510.7.1	Deletes Section [BG] 1510.7.1 “Wind resistance.” Per reasoning The expansion of Section 3111 in the International Building Code by Proposal G211-15 in the Group A cycle covers all that is within Section 1510.7 and its subsections, so Section 1501.7 is no longer needed.

Cost Impact: Will not increase the cost of construction.
This proposal will not increase the cost of construction, as it is intended to coordinate the code with prior action approved under Group A code development.
	This change is not similar to that of the FBC. The FBC 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 	

	

	

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S51-16 
Part  I	1511.3.1, 202 (New); IEBC: [BS] 706.3.	Modifies text of Section 1511.3.1 “Roof recover”. Adds new definition to Section 202 “ROOF COATING”.  Adds new section to IEBC definition Section “ROOF COATING”. Revises Section [BS] 706.3 “Recovering versus replacement.”

The proposal clarifies the enforcement process by adding additional substrates (i.e., existing roof coverings) that are
acceptable for the installation of a roof coating.  This code change was further modified by the Committee. The modification makes necessary corrections to address industry concerns. The committee had some concern over the introduction of a laundry list in the new wording as well as the lack of a direct tie to the material standards in Chapter 15.

Cost Impact: Will not increase the cost of construction. This will likely reduce the cost of construction when questions are raised about the appropriate use of a roof coating on existing
roofs.
	This change is not similar to that of the FBC. The FBC 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     	

X