It’s important for you to know your roof’s pitch. When choosing a roofing material for your home, an expert contractor should be able to tell you what material is best depending on your roof’s pitch. These roofing materials will greatly impact how your home looks.
Why the Pitch Is Important
Your roof’s pitch, or the angle or slant of your roof, determines your roofing material and thus the overall look of your home. The higher the pitch, the steeper the slope that your roof has.
A pitch is determined by measuring the rise of your roof per the 12 inches that it runs. If your roof rises by six inches per foot, then your pitch will be 6/12. If your roof rises by two inches per foot, then you’ve got a 2/12 pitch, and so on. Ask your roofer for help determining it.
Not all roofing materials can be attached to your roof. Materials used for low-pitched roofs aren’t best used for high-pitched roofs. And, while some materials can be used for pitches higher than recommended for them, they shouldn’t be used on roofs with a pitch lower than recommended.
Roof Pitches and Corresponding Materials
0.25/12 to 3/12
If your roof pitch is within this range, you can choose to get built-up roofing (BUR) or torch-down roofing, or opt to use a rubber membrane, such as EPDM for your roof. These materials are best for low-sloped roofing.
1/12 to 19/12
Standing-seam metal roofs are great for both low- and high-sloped roofs. These roof materials, which are made from aluminum or steel, can be used for steeper slopes.
2.5/12 to 19/12
Clay or cement tiles can be used on both low- to high-sloped roofs. If used on pitches between 2.5/12 and 4/12, however, the roof has to have double underlayment. Be sure not to use these materials on slopes about 19/12 as they might rattle.
4/12 to 20/12
Many homes have this kind of roof pitch: not too steep, but not too flat. Asphalt or composite shingles are the most commonly used for this type of pitch.
5/12 to 12/12
Wood and slate shingles are used for nearly the same roof pitches as asphalt shingles. Since slate and wood shingles do not lock together as tightly as asphalt shingles and other roofing materials, they are more prone to leaking and are thus best not used on low-sloped roofing.
If you’re looking for help in determining your roof’s pitch and knowing what material is best for your home or are in need of siding experts, look no further than Commonwealth Roofing & Siding. Give us a call at (703) 890-0717, or fill out our online contact form for a free estimate. We are your roof and siding experts in Centreville and Chantilly, VA.