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. The Contractor shall also provide a 2
year contractor installation warranty.
1.8
DELIVERY, STORAGE AND HANDLING
Deliver, store, and handle preformed panels, bulk roofing products and
other manufactured items in a manner to prevent damage or deformation.
1.8.1
Delivery
Provide adequate packaging to protect materials during shipment. Crated
materials shall not be uncrated until ready for use, except for inspection.
Immediately upon arrival of materials at the jobsite, inspect materials for
damage, dampness, and staining. Damaged or permanently stained materials
that cannot be restored to like-new condition shall be replaced with
satisfactory material. If materials are wet, remove the moisture and
re-stack and protect the panels until used.
1.8.2
Storage
Stack materials on platforms or pallets and cover with tarpaulins or other
suitable weathertight covering which prevents water trapping or
condensation. Store materials 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.
1.8.3
Handling
Handle material carefully to avoid damage to surfaces, edges and ends.
PART 2
PRODUCTS
2.1
ROOFING PANELS
Panels shall have interlocking ribs for securing adjacent sheets. System
for securing the roof covering to structural framing members shall be
concealed clip fastening system with no fasteners penetrating the panels
except at the ridge or eave, rakes, penetrations, and end laps. Backing
plates and ends of panels at end laps shall be predrilled or prepunched;
factory prepare ends of panels to be lapped by trimming part of seam,
die-setting or swaging ends of panels. Length of sheets shall be
sufficient to cover the entire length of any unbroken roof slope when such
slope is 9 meters 30 feet or less. When length of run exceeds 9 meters 30
feet, each sheet in the run shall extend over two or more spans. Sheets
longer than 9 meters 30 feet may be furnished if approved by the
Contracting Officer. Width of sheets shall provide not less than 300 mm 12
inches of coverage in place. Height of corrugations of adjacent roof
sheets shall be not less than [45] [57] [76] mm [1.75] [2.25] [3.0] inches
(nominal). Make provisions for expansion and contraction at either ridge
or eave, consistent with the type of system to be used. Panels from coil
stock shall be formed without warping, waviness or ripples not part of the
panel profile and shall be free of damage to the finish coating system.
SECTION 07611N
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