1.7.3
Storage
Stack materials stored on the site on platforms or pallets and cover with
tarpaulins or other suitable weathertight coverings which prevent water
trapping or condensation. Store panels so that water which might have
accumulated during transit or storage will drain off. Do not store the
panels in contact with materials that might cause staining, such as mud,
lime, cement, fresh concrete or chemicals. Protect stored panels from wind
damage.
1.8
Warranty
Furnish manufacturer's no dollar limit materials and workmanship warranty
for the roofing system. The warranty period shall be not less than 20
years from the date of Government acceptance of the work. The warranty
shall be issued directly to the Government. The warranty shall provide
that if within the warranty period the metal roofing system becomes
non-watertight or shows evidence of corrosion, perforation, peeling paint,
rupture or excess weathering due to deterioration of the roofing system
resulting from defective materials or workmanship the repair or replacement
of the defective materials and correction of the defective workmanship
shall be the responsibility of the roofing system manufacturer. Repairs
that become necessary because of defective materials and workmanship while
roofing is under warranty shall be performed within 7 days after
notification, unless additional time is approved by the Contracting
Officer. Failure to perform repairs within the specified period of time
will constitute grounds for having the repairs performed by others and the
cost billed to the manufacturer. Contractor shall also provide a 2 year
contractor installation warranty.
PART 2
PRODUCTS
2.1
ROOFING PANELS
2.1.1
Material
3004 aluminum, ASTM B 209M ASTM B 209.
2.1.1.1
Thickness
1.0 mm0.040 inch minimum.
2.1.1.2
Finish
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NOTE: Choose the finish appropriate for the
project. In general, hangars, warehouses, and other
utilitarian structures may use mill finish to reduce
cost. Mill finish Alclad is more economical than
fluorocarbon painted finish. Some colors in the
painted finish are substantially more costly than
others, due to the scarcity of certain pigments.
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[Alclad mill finish, unpainted] [Alclad fluorocarbon baked enamel exterior
and neutral washcoat interior].
SECTION 07612N
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