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Whistler Steel offer corrosion resistance, modern high gloss colors and then unbeatable strength of tough structural steel – made in Australia.
The pre-painted roofing’s and sidings are manufactured with zinc and aluminum coating on a high strength steel base. The conversion layer is chemically applied to enhance the coating adhesion, before a custom formulated, high gloss top coat is applied and then oven-baked.
Whistler Steel Roofing is usually installed on a metal or wood deck fastened to the roof structural system. Concealed clips or screws fix the panels to the deck. It’s recommended that a 30-lb. felt paper be used between the roof and deck.
CARE & HANDLING
Care must be exercised during unloading, storing and installation of panels to avoid damage by bending, warping, twisting, scoring and corrosion. To avoid storage corrosion, stacks should be stored off the ground on skids-at an angle for drainage-and protected with a loose-fitting waterproof cover.
All metal roofing and siding should be stored in a CLEAN, DRY, WELL VENTILATED AREA. Water build up from condensation, moisture, and rain is not good; it is the primary cause for white rust to start on stacked galvanized and painted steel sheets. Prolonged storage time is not recommended; however, if this is unavoidable the following precautions should be taken:
Failure to follow these steps may result in wet storage stain and premature white rust, for which WHISTLER STEEL INDUSTRIES, INC. cannot be held responsible.
For small cuts, hand held shears or electric nibblers are ideal tools for cutting metal roofing and siding. For more extensive cutting, use a power saw with a steel cutting blade. In this instance, several precautions should be taken. Cut only one sheet at a time, exposed side down, away from other unused or applied panels. Metal shavings may become embedded in the surface of the sheet and, if left alone, will quickly rust. Clean the panel area of all shavings before application. Always wear protective eyewear.
Insure that the structure is square and true before beginning panel installation. If the structure is not square, the panels will not properly seal at the side laps.
Green or damp lumber is not recommended. Moisture released from the damp lumber may damage the metal panels. Nails installed in green or damp lumber may back out.
Remove any loose metal shavings left on the roof surface immediately to prevent corrosion. After installing roof, remove any debris such as leaves or dirt to prevent moisture from getting trapped on panels.
If you wish to pre-drill holes, use a cover sheet to prevent hot shavings from sticking to panels. Fasteners must comply with AS 3566 Class 3 or Class 4, and should be certified by the supplier.
For best results use a 12 x 55 mm self drilling wood screw for wood panel and 12 x 55 mm self drilling metal screw for steel.
Ventilation and Vapor barrier protection for controlled environment buildings.
Allow an overhang of 2″ at the eave to provide for a drip edge. Use inside closure at eave to prevent insect or bird infestation at openings.
14″ ridge roll or ridge cap is recommended to prevent leakage. Seal off ridge and panel using outside closure strip.
To provide positive water drainage and maximize performance, the recommended minimum slope for Whistler® roof is 1.5m –otherwise, water collects to form ponds.
Compatible accessories are important to ensure that a Whistler® roof achieves maximum life. Fasteners and flashings should always be made from material designed to last as long as the Whistler roof. Incompatible or substandard accessories can lead to failure of one or more components. Insulation should not be exposed where it will be continually wet and in contact with the underside of roof panels.
Immediately after installation, make sure panels are swept clean to remove construction debris such as unused fasteners, metal filings, pop-rivet stems and pieces of flashing. The rusting of debris is often mistaken for roof corrosion.