UFC 4-171-05
1 January 2005
with change 25 October 2006
K-2 Continued
K-2.2.3
Provide generic NRCA details to help define the quality of the roof.
K-2.3
ethylene Propylene Diene Munomer (ePDM) Roof Membrane
K-2.3.1
Specify a minimum 60-mil thickness
K-2.3.2
Must be fully adhered, rather than ballasted or mechanically attached
K-2.3.3
Do not use over kitchens
K-2.3.4
Should include a coating to save energy
K-2.3.5
Require Factory Mutual certification for the system
K-2.3.6
Provide generic NRCA details to help define the quality of the roof.
K-2.4
\ Fiberglass-Based Asphalt shingle Roof system (system Added
Fall 2004)
K-2.4.1 Asphalt shingle roofing system shall include shingles, underlayments, and
flashing.
K-2.4.2 Shingle roofing system to provide ventilation of roof to prevent heat build-up
and associated heat damage.
K-2.4.3 Coordinate shingle color and style with architectural design and exterior
K-2.4.4 Minimum slope for shingles shall be 4 in 12 or manufacturer s
recommendation to meet 50 year warranty.
K-2.4.5 Provide continuous top ridge vent connected to roof ventilation system. Also
provide non-maintenance vents at the base of the roof system to support the air
movement convection process.
K-2.4.6 Provide asphalt shingle manufacturer s standard 50 year warranty for the
asphalt shingles (including 110 mph wind up-lift). Provide all accessories and systems to
meet the 50 year warranty criteria. Contractor shall warrant for 5 years that the asphalt
shingle roofing system, as installed, is free from defects in workmanship.
K-2.4.7 Provide cross-vented insulation over a vapor retarder in accordance with the
manufacturer s instructions. /2/
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