How To Waterproof A Low Pitch Roof

These membranes are particularly effective for roofs with a very low slope between 1 8 12 1 and 4 12 33.

How to waterproof a low pitch roof.

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

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. Solvent based coatings are typically longer lasting. However this can vary depending on the manufacturer architect and installation company. The proper way to install shingles on low slope roof application.

Waterproofing products for flat roofs. Generally 17 5 and below is considered a low pitch roof. This has led to a rise in low pitch roofing to accommodate these changes. A low slope roof is one that has a slope of less than 3 in 12.

Many roof coatings are available in either solvent based or water based materials. 3 layers if the roof slope is 5 15. 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. 2 layers for low slope roofs 15 25.

You can t use the rolled roofing materials if the roof slope is more than 25. Low slope steep slope terms describe roof slope the slant of a roof. This roof has a positive 4 12 roof pitch. 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.