Low Pitch Roof Definition

Low slope roof noun 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.

Low pitch roof definition.

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. A low slope roof is one that slopes 2 in 12 to 4 in 12 of run. This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal. Low slope roofing in other texts refers to roofing systems for pitches below 4 in 12 of slope.

Low slope roofing is defined as any roof pitched at 3 in 12 or 14 degrees or 25 slope or less. A roof that is nearly flat or slightly pitched is called a flat roof or low slope roof no roof should be dead flat because it must have at least a slight slope to drain. It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible slope to help drain water. And see roll roofing asphalt sbs.

Low slope roofing materials choices costs life expectancy characteristics installation guidelines definition of low slope roofing. 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. The pitch of a roof is its vertical rise over its horizontal span. Visually this roof appears flat.

Roofs on victorian era houses were often sharply. 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. However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof. Residential low slope roofing can generally be divided up into two broad categories.

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. This pitch might be as low as 1 12. A low slope roof is one that has a slope of less than 3 in 12.

There are extreme instances were roofs will have a low pitch of 1 12 or 0 5 12 which is most common on flat rooftops on warmer climates and 12 12 which is quite common in colder climates since rain and snow will slip easier on steeper inclinations. How to pronounce low slope roof. Finding the right products for your low slope roof. No roof can be completely flat as there has to be some measurement of slope in order for a roof to drain effectively.

Low slope steep slope terms describe roof slope the slant of a roof.