Low Slope Roofing Definition

A low slope roof is one that has a slope of less than 3 in 12.

Low slope roofing definition.

Slope is conveyed as a ratio and it stands for an amount of vertical rise for every 12 inches of a horizontal run which is again expressed as 3 12 or 3 in 12. Finding the right products for your low slope roof. Residential low slope roofing can generally be divided up into two broad categories. Plural low slope roofs or low slope rooves technical construction us according to astm standard e 1918 97 a roof in which the uppermost part is installed at a slope of 2 12 9 5 degrees or less.

Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering. This means that for every horizontal foot the roof level goes up less than 3 inches vertically. See low slope roofing. Low slope roofing in other texts refers to roofing systems for pitches below 4 in 12 of slope.

There are a few design elements that will help building owners get the most from their roofing system. Low slope roofing is defined as any roof pitched at 3 in 12 or 14 degrees or 25 slope or less. Roofing calculator in the building trades the acronym tpo stands for thermoplastic polyolefin a material originally developed for pond liners and used extensively for roofing since 1989. Most low slope roofs have a slope of less than 3 in 12 which means that a roof that rises 3 inches for every foot of run will be defined as one that has a 3 in 12 slope.

A low slope roof is one that slopes 2 in 12 to 4 in 12 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 from steep slope to low slope on the same structure. Also see modified bitumen roofing. Tpo is a type of membrane roofing suitable for flat and low slope roofs.

Multiple layers of weatherproof membranes protect a building its residents and the property it houses. A low slope roof design typically has a pitch of between 2 12 and 4 12. For examples of low slope roofing designs materials. Because low slope roofs also drain water more slowly than moderate or steep sloped roofs systems such as slate or asphalt shingles that rely on mechanical drainage for successful performance are not used.

Definition of low slope roofing.