ROOFING TECHNICAL ADVISORY COMMITTEE
Minutes
April 4, 2011
1:00-2:30 pm
Embassy Suites at USF
3705
Phone (813) 977-7066
Technical
Advisory Committee members present …… Christopher Schulte, Chairman
Billy
Cone,
1. TAC reviewed and approved the agenda
and January
Minutes.
2.
As
requested by the Commission, the TAC discussed and reviewed the concern raised
regarding proposed code modifications R3814-R1, R3799-R1, and R3800-R1 specific to the
application of roof coating. As part of
the discussion, staff provided a summary of the issue detailing the current
status of the code change as approved by the Commission for the 2010 FBC including
the compromise language provided by the Petitioner. The following is the staff summary which also
include staff proposed recommendation:
1. Current
status:
2010
2010
1507.15.3 Roof Coating. Add to read as follows (Non – HVHZ) :
1507.15.3 Roof Coating. Application of elastomeric and or maintenance coating systems over existing asphalt shingles shall be in accordance with the shingle manufacturer’s approved installation instructions. {3814}
HVHZ
1521.17.1 Application of elastomeric and or maintenance coating systems
over existing asphalt shingles shall be in accordance with the shingle
manufacturer’s approved installation instructions. {3799}
1521.18.1 No PUF and/or elastomeric coating systems shall be applied over existing composition shingles.
2010
(Non – HVHZ).
R905.15.3 Application. Liquid-applied roof coatings shall be
installed according to this chapter and the manufacturer’s installation
instructions. The approved allowable uplift resistance for the
liquid-applied coatings shall be equal to or greater than the uplift resistance
for the roof based on Table R301.2(2).
HVHZ
R4402.10.17.1 Application of elastomeric and or maintenance
coating systems over existing asphalt shingles shall be in accordance with the
shingle manufacturer’s approved installation instructions.
(3800)
R4402.10.18.1 No sprayed polyurethane foam (PUF) and/or elastomeric coating systems shall be applied over existing composition shingles.
________________________________________________________________________
2. Compromise Language – Lower Cost regulatory Alternative:
1507.15.3. Roof Coating, Adhesives and Mastics. Only elastomeric and/or other roof maintenance
coating systems which meet the material standards set forth in this code and
receive a product approval from the state authority having jurisdiction shall
be entitled to be applied to new and existing asphalt or other composition
shingles.
1517.17.1 Roof Coating, Adhesives and Mastics. Only elastomeric and/or other roof coating
systems which meet the material standards set forth in this code and receive a
product approval from the
1521.18.1 No PUF and/or elastomeric coating systems shall
be applied over existing composition shingles.
4402.10.17.1 Roof Coating, Adhesives and Mastics. Only elastomeric and/or other roof coating
systems which meet the material standards set forth in this code and receive a
product approval from the
1521.18.1 No PUF and/or elastomeric coating systems shall
be applied over existing composition shingles.
3. Staff proposal as an alternative and as starting for the
discussion:
1507.15.3 Roof Coating. Application of elastomeric and or
maintenance coating systems over existing asphalt shingles roof coverings shall be in accordance
with the shingle roof coating manufacturer’s approved
installation instructions as demonstrated through testing to a specific roof
substrate.
Note: we
advise that this provision be moved to the Florida Building Code,
__________________________________________________________________________
In addition to the
above summary, the following proposal was also suggested by one of the TAC
members:
1507.15.3 Roof Coating.
Discontinuous roof systems are to remain discontinuous after the
application of approved elastomeric and or maintenance coating systems. When a roof system is changed from
discontinuous to continuous due to the application of elastomeric and or
maintenance
coating systems, the coating system shall be in accordance with the roof coating manufacturer’s approved
installation instructions as demonstrated through testing to a specific roof
substrate meeting the requirements of Sections 1506.2 and 1506.3.
TAC
Action:
The TAC
voted to affirm the current provisions as approved by the Commission under
modifications 3814, 3799, and 3800.
4.
Adjourned at 2:30 pm
Note: This document is available to any person
requiring materials in alternate format upon request. Contact the Department of Community Affairs,
2555 Shumard Oak Boulevard, Tallahassee, Florida, 32399-2100 or call (850)
487-1824.
This
document prepared by DCA.
Joe
Bigelow – joe.bigelow@dca.state.fl.us
(850) 922-9160
Manager
– Mo Madani – mo.madani@dca.state.fl.us, (850) 922-2247