Roofing system applicator shall be approved, authorized, or licensed in
writing by the roof membrane manufacturer and shall have a minimum of
[three][_____] years experience as an approved, authorized, or licensed
applicator with that manufacturer and be approved at a level capable of
providing the specified warranty. The applicator shall supply the names,
locations and client contact information of 5 projects of similar size and
scope that the applicator has constructed using the manufacturer's roofing
products submitted for this project within the previous three years.
1.4.3
Fire Resistance
Complete roof covering assembly shall:
a.
Be Class A rated in accordance with ASTM E 108 ,FM AS 4470, or UL
790; and
b.
Be listed as part of Fire-Classified roof deck construction in the
UL RMSD or Class I roof deck construction in the FM P7825.
FM or UL approved components of the roof covering assembly shall bear the
appropriate FM or UL label.
1.4.4
Wind Uplift Resistance
**************************************************************************
NOTE: Determine the required wind uplift resistance
based on ASCE 7 wind loading calculations or
applicable building code requirements.
The specified FM approval rating incorporates a
safety factor of 2 over the maximum calculated
uplift pressure in inch-pound units. Therefore, a
FM approval rating of 1-90 correlates to a maximum
uplift calculation of 2.2 kPa (45 psf). When
specifying an FM rated system, ensure the designed
roof system is capable of providing the specified FM
approval rating. Where non-rated systems may be
permissible, include the bracketed portion of the
second sentence and the third sentence.
Ballast for loose-laid ballasted application should
be designed in accordance with ANSI/RMA/SPRI RP-4.
Where ballasted systems are specified include the
bracketed option at the end of the paragraph.
**************************************************************************
Complete roof covering assembly, including insulation, shall be rated Class
1-[60][90][_____] in accordance with FM P7825 capable of withstanding an
uplift pressure of [2.85][4.30][_____] kPa per square meter
([60][90][_____] psf). Non-rated systems shall not be installed[, except
as approved by the Contracting Officer]. Provide wind load calculations
and submit engineering calculations and substantiating data to validate
wind resistance of any non-rated roof system. Wind uplift calculations
shall be based on a design wind speed of [_____] km/h ([_____] mph) in
accordance with ASCE 7[ or applicable building code requirements].
[Resistance to wind uplift for loose-laid ballasted application shall be in
accordance with requirements of SPRI RP-4.]
SECTION 07530
Page 10
Previous Page
