Artificial: The craze in roofing is toward synthetic underlayment. It costs two to three times more than asphalt-primarily based merchandise, but synthetic substance features quite a few strengths. It offers top-quality humidity resistance as the roof shingles age.– Some artificial underlayments are breathable, so moisture during the attic can evaporate https://housedoumi.com/top-15-questions-to-ask-before-hiring-a-roofing-company/