Corrugated roofing sheets have been around since World War II. The advantage of corrugated roofing sheets is that they are rigid yet easy to handle and install. The sheets can range from 2 feet to 10 feet on a side. They are particularly ideal for patio roofing.
They can come in various materials including PVC, polycarbonate, or metal. PVC is a popular type of plastic known as polyvinyl chloride. A wide variety of metals are available. You can have aluminum, stainless steel, and tin. They can be galvanized, aluminized, hot-dipped, cold-rolled, and/or pre-painted.
Corrugated roofing sheets are priced by square foot. Some may require an additional underlayer. And if you hire a contractor to install them, it is often charged by hour. Some high-end shops will use CAD (computer aided design) system that can cut the panel to your exact specifications. Some might provide embossing, perforating, laminating, and custom curving.
There are many types of corrugated roofing sheets with different manufacturers using different nomenclature. Some of which are the type "B" wide rib, type "F" intermediate rib, composite, N deck, Thermalwall, R-panels, A-panels, Vertarib, flexbeam -- just to name a few.
To fasten the corrugated metal sheet in place on your roof, you will need accessories including tapping screws, which can come in self-tapping or self-drilling versions. Depending on your configuration, you may also need angles, flanges, channels, and Z-bars. A sag-rod may to used to prevent sagging. To provide weather tightness, it is also recommended that you use closures strips, also known as filler strips, for stealing the corrugated opening. Butyl tape is often useful if you need water tightness.
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