When you’re changing your aged roof, start by getting rid of the present shingles, underlayment and vents. Underlayment: A uniform layer of felt protects towards drinking water infiltration beneath the shingles, and allows the shingles to put flatter. These cookies can be set through our website by our advertising partners. https://local-metal-roofers10098.blogsuperapp.com/29370508/a-secret-weapon-for-local-metal-roofing-contractors