work.
1.6
DELIVERY, STORAGE AND HANDLING
Materials shall be delivered to the project site in a dry and undamaged
condition and shall be stored out of contact with the ground. Materials
shall be covered with weathertight coverings and kept dry. Storage
accommodations for materials shall provide good air circulation and
protection from twisting, bending, abrasion, discoloration or staining.
1.7
WARRANTY
The copper roofing installation shall be warranted for a period of 20 years
against blow-off and leakage arising out of or caused by ordinary wear and
tear by the elements. A sign shall be permanently attached to the building
at the most likely roof access point advising of the existence of the
warranty. The warranty shall start upon final acceptance of the work or
the date the Government takes possession, whichever is earlier. The
warranty shall guarantee that the design, detailing, materials, and
accessories used for roofing work are approved by the roofing manufacturer
and installed in accordance with specifications, drawings and other
documents approved by manufacturer prior to installation.
PART 2
PRODUCTS
2.1
ROOF PANELS
Roofing sheets shall be cold-rolled copper sheets conforming to ASTM B 370
temper designation, H00, minimum 4.9 kg per square meter 16 ounces per
square foot containing 99.9 percent copper. Copper roof panels shall be
factory-fabricated in accordance with approved drawings and CDA 4115
recommendations. Sections shall be formed true to shape in the longest
practical lengths, accurate in size and free of distortion and defects.
Exposed edges shall be hemmed on underside. Exposed copper work shall be
fabricated without excessive oil-canning, buckling, and tool marks.
2.2
ACCESSORIES
Components required for a complete roofing system, including [trim,]
[copings,] [fascias,] [corner units,] [ridge closures,] [clips,] [gutters,]
[closure strips,] and similar items shall be factory fabricated. Clip
bases shall have factory punched or drilled holes for attachment. Clips
used with panel width greater than 305 mm 12 inches shall be made from
multiple pieces with the allowance for the total thermal movement required
to take place within the clip. Cleats shall be interlockable with the
panels and shall be of type and size to meet design requirements.
Accessories shall be fabricated of type and thickness of sheet copper
complying with CDA 4115.
2.3
SOLDER AND FLUX
Copper solder shall conform to ASTM B 32. Flux shall be rosin, muriatic
acid neutralized with zinc or an approved soldering paste.
2.4
SLIP SHEETS
Slip sheets shall be smooth rosin-sized unsaturated building paper weighing
a minimum of 295 grams per square meter 6 pounds per 100 square feet.
Sheets shall be attached with approved fasteners. Slip sheets shall be
SECTION 07610
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