MINUTES

FLORIDA BUILDING COMMISSION

WIND MITIGATION WORKGROUP

April 18, 2008—Tampa, Florida

RACCA; 1920 East Sligh Avenue; Tampa, Florida 33610; 1.813.870.2607

 

Contact Information: Jeff Blair; 850.644.6320; jblair@mailer.fsu.edu; http://consenus.fsu.edu

Project Webpage: http://consensus.fsu.edu/FBC/wmw.html

Wind Mitigation Workgroup Members Present

Representation                                                                                        Member

Commission/Roofing                                                                          Chris Schulte

Commission/Contractor                                                                      Matt Carlton

FRSA/Roofing                                                                                                Billy Cone

FRSA/Roofing                                                                                                Burt Logan

Insurance                                                                                             Tim Reinhold

Insurance                                                                                             Eric Stafford

FHBA                                                                                                  Richard Reynolds

Building Officials                                                                                Bill Dumbaugh
Building Officials                                                                                Jim Schock

 

  1. DCA Staff provided a starter list of six options to consider for the gravel roof discussion and ranking on importance value (See gravel issue below).
  2. DCA staff informed the Workgroup that there will be another meeting Tuesday May 6 at 8 am in Melbourne FL during the Commission Meeting.
  3. Staff informed the Workgroup that a working draft of the mitigation rule in Code language to be submitted during the glitch cycle is ready and available.
  4. A gable end bracing proposal will be available for review from Tim Reinhold during the May Commission meeting.  Fundamentally, all of the information in the current Rule is correct for a standard attic but there are a few changes that may be needed and a draft of this cleaner language will be provided.  Language will become appendix or chapter.  The facilitator will provide the information at least a week before the upcoming May meeting and will be the primary focus at the next meeting.

 

 

 

 

 

 

Workgroup discussed and recommends the following proposal:

 

Section 611.7.2 Removed “#30” from language in to read

ASTM D 226 Type I or Type II (#30)underlayment or approved synthetic underlayment

 

Section 1502.1 Add new definition of “Aggregate” 

AGGREGATE. In roofing, crushed stone, crushed slag or water-worn gravel used for surfacing for roof coverings.

 

Section 1502.1 Add new definition of “Ballast” 

BALLAST. Ballast is any item having weight that is used to hold or steady an object. In roofing, ballast comes in the form of large stones or paver systems or light-weight interlocking paver systems and is used to provide uplift resistance for roofing systems that are not adhered or mechanically attached to the roof deck.

 

1504.8 Gravel and stone. Gravel or stone shall not be used on the roof of a building located in a hurricane-prone region as defined in Section 1609.2, or on any other building with a mean roof height exceeding that permitted by Table 1504.8 based on

the exposure category and basic wind speed at the building site.

 

1504.8 Aggregate.  Aggregate shall be permitted as roof surfacing when installed in accordance with the HVHZ requirements as defined in section 1519.12.1

For SI: 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s.

a. Mean roof height in accordance with Section 1609.2.

b. For intermediate values of basic wind speed, the height associated with the

next higher value of wind speed shall be used, or direct interpolation is permitted.

c. NP = gravel and stone not permitted for any roof height.

 

5.      ADJOURNED 1:15 pm