Roof pitch is one of the most used terms in the roofing industry. (Also referred to as roof slope or roof slant.) The angle or pitch of a roof, is determined by the number of inches it rises vertically for every 12 inches it extends horizontally. Generally all slopes higher than 4:12 are considered steep slopes.
Roofing types and roofing product are typically divided up into two primary categories: steep slope and low slope. Most single family homes are constructed with a pitch or slope to the roof, therefore steep slope roofing is referred to “residential” roofing. The term low slope roofing is synonymous with “commercial roofing” due to most commercial buildings have “flat”roof design.
STEEP SLOPE ROOFING
Steep-slope roof systems typically are composed of individual pieces or components installed in shingle fashion. Steep-slope roof assemblies typically consist of three primary parts:
Roof pitches less than 4:12 are considered low sloped roofs. Special installation practices must be used on roofs sloped 2:12-4:12. Shingles cannot be installed at slopes less than 2:12. (must use a flat roofing product). Residential homes may have portions or a portion of the roof that is sloped/flat and that would require a low sloped product(patio roof, etc.)
Most low-slope roof membranes have three principal components:
All of our pitched and low-sloped roof systems are properly permitted and installed by factory-certified technicians according to the manufacturer’s specifications and the industry’s ‘best practice’ guidelines. You can be confident in choosing Cal-Vintage for your next roofing project knowing that your investment is thoroughly protected and well covered by both workmanship and manufacturer material warranties.