How To Waterproof A Low Pitch Roof

The proper way to install shingles on low slope roof application.

How to waterproof a low pitch roof.

Solvent based coatings are typically longer lasting. 4 layers if the roof is flat and the slope is 0 5. Many roof coatings are available in either solvent based or water based materials. Low slope steep slope terms describe roof slope the slant of a roof.

This is standard practice in many countries including scotland as it provides the ideal substrate on which to construct the waterproof element of the roof. In either case find a professional roofing contractor experienced with low slope roofs and these specific products. A low slope roof is one that has a slope of less than 3 in 12. Waterproofing products for flat roofs.

These membranes are particularly effective for roofs with a very low slope between 1 8 12 1 and 4 12 33. A roof that is nearly flat or slightly pitched is called a flat roof or low slope roof no roof should be dead flat because it must have at least a slight slope to drain. Technology of laying the roll roofing on a flat roof. 2 layers for low slope roofs 15 25.

Every coating is different so there isn t a simple answer to which one is the best waterproofing for a low slope roof. 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. It can seem confusing working out whether to go with a low pitch roof and what this could mean in the long run. The ultimate solution to achieve a very efficient watertight under roof is to lay rigid sarking board.

3 layers if the roof slope is 5 15. This has led to a rise in low pitch roofing to accommodate these changes. However this can vary depending on the manufacturer architect and installation company. You can t use the rolled roofing materials if the roof slope is more than 25.