Underlayment is a protective layer installed between the roof’s sheathing and shingles to prevent moisture infiltration. It is usually made from felt or synthetic material and requires proper installation by professional roofing companies to be effective in performing its function.
The type of shingles attached to your roof plays an important role in protecting your home from the elements, but so does its underlayment. The underlayment functions as a secondary protective layer for roof decking—the base of your roof—in the event water or moisture or the chemicals used in shingles manage to infiltrate your roof. Keep in mind not all types of underlayment provide the same level of protection. In general, there are three types. Next Level Roofers, one of the
