Minimum Slope For Shingle Roof
Depending on the roof profile there are minimum roof slope requirements for each panel which need to be considered.
Minimum slope for shingle roof. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. Or the colon can replace the slash as in 2 12 or 7 12. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. Asphalt shingles can only be installed on roof slopes of 2 12 or greater.
That works out to about nine degrees if that works better for you. Minimum pitch for metal roof. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
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. The minimum roof slope for metal roofs is dependent upon the roof profile. Finding the right products for your low slope roof. Experience the total owens corning roofing system and high quality roofing shingles.
We can even help you find a professional to install it. With regards to metal roofing the profile refers to the shape adopted by the metal sheets when they are bent to form the panels. The profile refers to the shape the metal sheets take when they bend to. Asphalt shingles minimum roof slope roof pitch r905 2 2.
Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you. Roof pitch designations are comprised of two numbers indicating a ratio. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope.
Pitch is the term used to describe the angle slope or slant of your roof. To get the minimum pitch for a metal roof the vertical rise per foot is divided by the horizontal slope. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. Roof pitch defined and explained.
Asphalt shingles continue to be the most widely installed roof covering option in north america. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Shingles of all types need to have a slope to function properly.
What is the minimum pitch slope of an asphalt shingle roof. Residential low slope roofing can generally be divided up into two broad categories.