Metal Roof Substrate

Insulation membrane modified bitumen and ssr panels.

Metal roof substrate.

Metal roofing is typically installed over a solid substrate. 3 wide rib panel. The two main types of substrates used with metal roofing systems are open framing and solid. The most common use of a substrate board is on steel and wood decks.

Galvalume and galvanized are two commonly used substrates in the metal roofing industry. As a key part of the metal roofing system the substrate or substructure which rests. Structural metal roofing is broken down into low slope and steep slope categories. Metal roofing does not attract lightning.

Non structural metal roofing requires a solid substrate beneath it typically plywood oriented strand board or a metal roof deck. The most common deck material is carbon steel with a galvanized coating. Structural metal roofing attaches directly to purlins or lathe boards and does not require any sort of solid support beneath it. In stock at store today.

Galvalume carries a warranty from the steel mills that protects against perforation or rust through of the substrate but not surface rust. Galvanized substrates are coated in zinc while galvalume substrates are coated with an alloy of zinc plus aluminum. Metal roof deck is the structural component that provides support and mounting surface for roof building materials i e. Additionally the attic and insulation provide a sound barrier.

It also can provide a surface to which the insulation above can be adhered. Choosing proper substrates for metal roofing systems importance of substrates. From interior living spaces inhabitants rarely notice any increase in sound levels when a metal roof is installed. This deck provides resistance to the positive and negative building loads.

Exterior grade structural plywood can be used as a flat or pitched roof substrate and receive either single ply or metal shingle or metal shingle roof panelled cladding across a multitude of settings. The most popular steel substrates in the metal roofing and siding industry are galvanized and galvalume.