Suitable materials for pitched roofs.
Roof low pitch options.
Think of them as taking the middle road in terms of roof pitch not too flat not too steep.
This top layer normally is tar over which the gravel is laid.
Pros cons of roll roofing bur modified bitumen epdm roof systems.
5 12 to 12 12 pitch.
For commercial buildings one of the other popular low pitch roof options is coated metal.
Table of low slope roofing options.
1 cover the entire surface with a self adhesive flashing membrane such as grace ice water shield there are many.
2 where the roof is not visible consider upgrading to a single ply roofing intended for low slope roofs.
Pitched roofs begin with with slopes greater than 3 in 12.
Built up roofing is the most popular roofing material used on low sloped roofs.
The following low slope roof system discussion is adapted paraphrased with permission from best practices guide to residential construction chapter on best roofing practices.
For a low slope residential roof there are two main options.
This coating helps reduce the instances of rust increasing the life span of the roof.
These shingles are appropriate for pitches as low as 4 12 pitch all the way up to a 12 12 pitch.
Made of several layers of bitumen surfaces built up roofing is finished by applying an aggregate layer or coating as the top layer.