Flat Roofing Process

Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat.

Flat roofing process.

Every roofing replacement project begins with a thorough inspection of the wood decking. This is very important because only when you have a solid base for your roofing structure your shingles will stay intact. Start at 1 end of the roof and unroll the bitumen to the other end. Today s variety of flat or low slope commercial roofing options roof pitches ranging from 12 to 3 12 is no longer simple and has grown considerably in the last 50 years.

Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing. Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary. First lay a run of starter shingles along the bottom of the roof and nail them firmly into place using roofing nails a couple inches up from the edge of the roof. Any soft wet or rotted wood needs to be replaced to create a solid base for your roofing structure.

Flat roof replacement process. In addition you will still need tools such as a measuring tape drill and utility knife along with the following. Nail it in place with roofing nails that penetrate at least 3 4 inch into. Things you ll need small spade hammer screwdriver bolster hammer screwdriver or drill screw with a chisel attachment wallpaper scraper epdm rubber water based deck adhesive large surface adhesive roller.

Remove and replace any and all rotted fascia. Asphalt shingles are known for being one of the simplest types of roofing materials to install. Roofing timber steel joists plywood exterior covering such as epdm or modified bitumen water based adhesive foam with fibreglass backing insulation warm flat roofing. The hot applied asphalt or coal tar pitch blends with the bitumen soaked roof felt and creates a monolithic roof membrane.

Roll modified bitumen roofing sheets over the entire roof. The goal of this article is to help building owners architects and contractors decide which commercial roofing options are right for each unique project. Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the valley. Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm.

Clean the existing roof system as needed including flashings boots vents and rotted wood areas.