Slopes greater than 18 12 are found on a frame roofs and some mansard style.
Wooden roof slop.
If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks.
Some sources consider low slope to include 3 12 pitch roofs.
Unlike the wooden ceiling the sloped wooden roof is slightly inclined and used in combination with the sloped walls.
A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.
The way pitch also known as roof slope is measured is rise over run.
Pitch angle incline slope they all can be used to refer to the steepness of a roof.
Low slope roofs are from 0 to 3 12 in pitch.
The gentle slope of a hip roof with its trapezoidal sides and pyramid like elegance is a graceful traditional design that pleases the eyes and can be constructed in a combination of various unique styles.
See low slope roofing.
Once the first sloped wooden roof is placed subsequent sloped wooden roofs can snap into place along the first one allowing them to line up provided that there is adequate room to do so.
This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units.