Sloped Roof Shingles Intersection With Built Up Flat Roof Overlap

Residential low slope roofing can generally be divided up into two broad categories.

Sloped roof shingles intersection with built up flat roof overlap.

Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 9 5 mm head complying with astm f1667 of a length to penetrate through the roofing materials and not less than 3 4 inch 19 1 mm into the roof sheathing. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Cast architecture designed this family home in mazama washington.

Coal tar built up roofs however can have a design roof slope of 1 8 12 1 percent but no less. The sloped roof on this modern house opens up the back patio and give it a large airy feel perfect for hosting family and friends. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Low slope metal roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs.

It is composed of alternating layers of reinforcing fabric and bitumen asphalt and is finished with a top layer of aggregate such as stone or gravel. Where the roof sheathing is less than 3 4 inch. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.

Built up roofs must have a design roof slope of 1 4 12 or greater 2 slope. Asphalt shingles continue to be the most widely installed roof covering option in north america. Learn about the liberty sbs self adhering base ply sheet. Low slope metal roofs require less material which reduces the overall load on the building s structure.

Finding the right products for your low slope roof. Built up roofing also called bur is the most common roofing material used on low slope roofs. This means for every 12 horizontal units the roof must rise a minimum of one fourth vertical unit. Common flat roof membranes discussed in this article include built up asphalt tar and gravel modified bitumen and single ply membranes like epdm pvc tpo and kee.

Membrane roofing is often used on commercial flat roofs. We also cover spray applied foam and liquid roofing options. Built up roofs minimum roof slope roof pitch r905 9 1. Liberty sbs self adhering roofing system will provide long lasting protection for the low slope areas of your property without the danger or hassles associated with the installation of other conventional roofing products.