Outside of the u s a degree angle is typically used.
How do you measure a roof to get the square footage.
The lower slope length is measured from outside wall to the start of the upper sloped roof section.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
The roof surface area would be 24.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
Calculate the square footage of a gambrel style roof using imperial measurements.
Thus in a simple style house you ll only have to click on the corners.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area.
To convert the square footage to roof squares divide the square footage by 100.
How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.
If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2.
If you use ground measurements to determine your roof squares you will need to also compensate roof overhang and slopes to get an accurate count.
Use the instructions for obtaining roof slope to add to your ground measurements.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
L h 2 area calculating an area of a triangle when estimating a roof.
If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2.
1 roof square 100 square feet.
Things you will need steel tape measure.
Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.