Choosing a Roofing Underlayment: Granular VS. Smooth The history of roofing underlayments is a long one, a progression of needs and innovations that like the products themselves, have remained under the surface By Blackpool Roofing|2019-03-08T05:00:00+00:00March 8th, 2019|Emergency Roofing Maintenance, Industrial Roofing, Roofers, Roofing, Roofing Industry News|Comments Off on Choosing a Roofing Underlayment: Granular VS. Smooth Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail