Single Ply Membrane Flat Roof Pitch

Sig design technology recommends a range of single ply flat roof membranes different materials and different brands depending on the application project size and performance requirements.

Single ply membrane flat roof pitch.

Single ply roofing membranes are increasingly popular in uk construction projects both for new build and refurbishment. These membranes are particularly effective for roofs with a very low slope between 1 8 12 1 and 4 12 33. Back to flat roof construction. It is accepted good practice to design in a fall or slight gradient of at least 1 60 which equates to 17mm over 1m.

Sig design technology also design and supply flat roofing solutions including single ply liquid waterproofing green roofing and zinc copper and aluminium roofing and cladding. They work well for a variety of projects with roofs of all shapes and sizes including exposed roofs green roofs cool roofs ballasted roofs and more from large scale commercial projects such. Membrane roofing is often used on commercial flat roofs. A pitched roof is defined as being a roof with a pitch greater than 10 degrees.

We also cover spray applied foam and liquid roofing options. Selecting your roof system is always a combination of design criteria performance requirements and cost and it is important to find a balance all three. Single ply roof types. The recommended minimum fall for a flat roof is 1 80 0 72.

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. Heavy duty roof membranes. The use of the resisto self adhered waterproofing membrane as a first layer and the resisto granulated cap sheet high resistance hr cap sheet as a second layer is an ideal solution to ensure the waterproofing of low slope roofs. Single ply roof types.

Single ply roofing systems are one of the most popular of flat roofing materials particularly advantageous if the project has weight and load bearing considerations. The membrane is durable and resistant to european climate conditions tears and punctures yet incredibly lightweight typically 2 3kg per square metre. Bs6229 states that the minimum finished fall of single ply membranes at any point should be 1 80. Single ply roofing products.

Self adhered roof membranes. This applies whether the waterproofing is a polymeric single ply membrane a reinforced bitumen membrane or another type listed in bs 6229 2018 the code of practice for flat roofs with continuously supported flexible waterproof coverings.