What Ply To Use On A Flat Roof

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

What ply to use on a flat roof.

Tpo is 1 70 per sq foot. You can use our flat roof calculator to quickly and accurately estimate the cost of replacement. The membrane roof is the latest roofing technology and is also the roof of choice in commercial construction. Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design.

Pvc is 1 90 per sq foot. Why is plywood used in roofing. Look for something that s graded as exposure 1 or exterior. In general materials used on flat roofs cost less than ones used on sloped ones.

In roofing plywood is often selected due to its strength. The minimum plywood for roofing. Membrane roofing is often used on commercial flat roofs. Epdm is 1 50 per sq foot making it the cheapest single ply membrane.

Roofing can also be improved by using extra insulation and fresh single ply membranes the effects of an extra insulation will be experienced by the cooler temperatures that will be enjoyed in the interior during the summer and the use of the single ply will definitely prolong the life span of the roof. What size plywood should you use for your roof. What plywood should you use for a roof. In addition to the thickness you also need to make sure that you choose plywood that s graded for outdoor use.

All three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules. We also cover spray applied foam and liquid roofing options. Rafters run from the peak of the roof.

The industry offers a thickness of anywhere from 5 16 inch to inch. Known technically as elastomeric or plastomeric roof membrane depending on the material single ply roofs come in a few different varieties including. Pros and cons for flat roof materials. Common flat roof membranes discussed in this article include built up asphalt tar and gravel modified bitumen and single ply membranes like epdm pvc tpo and kee.

Although the roof structure takes the majority of the weight plywood needs to be able to support the rest of the roofing system.