We recently switched the underlayment we use for our composition roof installations. This may not sound like a big deal but it was for us. We are very careful about every little detail on our roofing projects and don’t make changes on a whim. We had been installing 30 Lb. ASTM rated felt paper for years and years. So why …
When choosing a roof, many carefully choose their roofing product but ignore the underlayment. The underlayment is a thin layer that is applied under the roofing product you see but on top of the sheathing. The purpose of this application is to serve as a vapor barrier, preventing leaks and rot. The underlayment is a very important part of the …