Minimum Slope Roll Roofing

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in.

Minimum slope roll roofing.

2 1 2 12 minimum roof slope for clay and concrete tile. Rolled roofing is easy to obtain and can be found at all home improvement stores. 2 12 minimum roof slope for asphalt shingles photovoltaic pv shingles and building integrated pv. Most metal roofs will have minimum pitches of three in twelve but this might sometimes go down depending on whether there are special installation procedures issued by the manufacturer regarding that particular roofing material.

So in terms of quantity a roofing roll is about the size of one composite shingle square. One msr roofing roll is usually about 36 feet long by 36 inches wide. Slate shingles minimum roof slope roof pitch r905 6 2. Functional pitch the function of the roof in weather and the environment determines the minimum pitch for a roof.

Nailable base sheet layers of felt cap etc. Mineral surfaced roll roofing can only be installed on roof slopes of 1 12 or greater 8 slope. Residential low slope roofing can generally be divided up into two broad categories. This is a single layer membrane style roofing material that is heat activated by a torch during installation.

Square is a roofing term that refers to one roofing unit of 100 square feet. Asphalt shingles continue to be the most widely installed roof covering option in north america. Finding the right products for your low slope roof. 3 12 minimum roof slope for metal roof panels with nonsoldered seams.

For steep slope roof systems ibc 2018 provides for a 1 12 minimum roof slope for mineral surfaced roof roll roofing. Mineral surfaced roll roofing minimum roof slope roof pitch r905 5 2. This means for every 12 horizontal units the roof must rise a minimum of 1 vertical unit. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Sometimes called tar and gravel or bur the modern form of this kind of roof consists of alternating layers of bitumen and reinforcing fabrics. Cap sheets can be smooth or granular. Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically.

Epdm short for ethylene propylene diene monomer is a true rubber that can be. The minimum pitch for roll roofing is 2 12 or 2 inches rise to 12 inches run. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.