Measured by rise in inches for each 12 inches of horizontal run.
Roofing terminology dimensions.
We compiled an extensive roofing glossary just for you.
Educate yourself with terminology.
So in a sense we re talking about square feet but using this unit makes it easier to calculate the footage or required materials and cost of a roofing project.
Get familiar with roofing terms and definitions.
Roofing design types terms.
Common roofing terms defined explained.
A type of roof containing sloping planes of the same pitch on each side of.
Sometimes called hat channel because of its shape.
A shingle manufactured by coating a reinforcing material felt or fibrous glass mat with asphalt and having mineral granules on the side exposed to the weather.
A type of roof containing sloping planes of the same pitch on each of four sides.
The size of shingles varies by manufacturer and material but a typical example measures just over 12 5 inches wide and 39 75 inches long with 12 inches of exposure.
Imagine how cumbersome it would be to calculate by the square foot or yard that s a big number.
In some instances they are also steel lengths measuring about an inch or so wide that have an elevated middle where one screws the metal roofing into.
A measurement of roof area that equals 100 square feet an area 10 feet by 10 feet.
The following is a list of terms or phrases commonly used in the roofing industry.
A coating that can be stretched to twice its dimensions and that will return to original when tension is.
Galvanized metal flashing should be minimum 28 gauge.
A hip roof contains no gables.
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A box of this material can contain 15 shingles which covers about 49 2 square feet or 30 shingles which covers 98 4 square feet.
An asphalt roofing base material manufactured from glass fibers.
The upper portion of a sidewall that comes to a triangular point at the ridge of a sloping roof.
One roofing square is equal to 100 square feet.
Batten or purlins can be 1 x2 x4 wood strips nailed to the roof or rafters upon which the roofing is attached.
The same roof has a 4 12 or 1 3 pitch.
Each term is accompanied by a brief definition.
Educate yourself with terminology.
Slope a roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.
Pieces of metal or roll roofing used to prevent seepage of water into a building around any intersection or projection in a roof such as vent pipes chimneys adjoining walls dormers and valleys.
The open area above the ceiling and under the roof deck of a steep sloped roof.
