Low Pitch Roof Membrane

A low slope roof design typically has a pitch of between 2 12 and 4 12.

Low pitch roof membrane.

Low slope roofing is classified as applying a water impermeable or weatherproof roofing membrane to a roof sloping less than or equal to 14 degrees. Idea is the same as with salt boxes. Epdm membrane resilient synthetic rubber membrane widely used on low slope roofing projects for over 50 years in the united states and worldwide. But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch.

Membrane roofs are predominately used as a flat roofing system since they are watertight which is critical where water is not shed immediately. In these cases a metal roof of a membrane roof on the low slope is almost a must. Another example is the second image in this article where you see ice belt at the bottom of the low section but ice dams and leaks came in where roof changes slope to steep. For this type of roof shingles and other traditional coatings are less durable and less aesthetic.

Often even ice belts do not help. Their fasteners are either concealed or screwed at the top of a ridge which makes them less likely to leak. For a low slope residential roof there are two main options. They can also be used on very low pitched roofs where shingled slate or tiled roofing would not perform.

Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering. Single ply membrane installation in progress on a flat roof. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. 2 where the roof is not visible consider upgrading to a single ply roofing intended for low slope roofs.

These membranes are particularly effective for roofs with a very low slope between 1 8 12 1 and 4 12 33. This system can be used for a large number of projects including home expansions cabins garages annexes carports sheds and workshops. Liberty sbs self adhering base ply sheet is a self adhering roofing membrane designed to be used as either a base sheet or a ply sheet in your modified bitumen roofing system providing long lasting protection for low slope roofs.