How To Do The Flat Roofing

You can t use the rolled roofing materials if the roof slope is more than 25.

How to do the flat roofing.

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. The term flat roofing describes a roof surface that is as almost completely level. This will give additional stability to the roof structure. Griffin this is one of the most comprehensive written guides to commercial flat roofing.

From there the flat roof system you choose will determine the materials you apply. The preferred design of a flat roof fall is 1 40 although this can vary and be anywhere down to 1 80. The base of a concrete slab. Trim the shingles away from the ridge vent hole.

Steam insulation film to protect the insulation from wet fumes coming from the premises. Technology of laying the roll roofing on a flat roof. If the plumbing vent is close to the peak of the roof lap the shingles over the peak of the roof. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.

4 layers if the roof is flat and the slope is 0 5. An introduction to flat roofing. Although the name indicates a horizontal surface a slight angle must be included to allow for the drainage of rainwater. When timbers are used in flat roofing they obviously need to be waterproofed so boards are normally laid across the joists and then a felt or rubber is used to cover the boards to make them waterproof.

Adhere the joint where the cut edges of the shingles meet the dome with roofing tar. Dick fricklas and c w. In the majority of cases the covering will be plywood or osb timber which is more commonly called stirling board. Originally written in 1970 by roofing experts r l.

Adhere the shingles adjacent to the flange with roofing tar.