Outside of the u s a degree angle is typically used.
How to figure out square footage of a sloped roof.
Pitch measurement method 1.
The pitch of the roof is the rise over a 12 inch run.
Once you have your roof s pitch divide the number by 12.
For example if your roof s pitch is 4 in 12 you would divide 4 by 12.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
An important part of any roofing repair or replacement project is being able to accurately calculate the quantity of roofing materials required to finish the job.
Roof pitch area multipliers.
If the house has an irregular shape measure each part separately figure the separate areas and add them together.
Roof pitch is given as the number of inches in height change over the distance of one foot.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.
If you measured in another unit of measure do the following to convert to feet.
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.
This would yield 1 3.
For example a 4 12 pitch roof that is 100 square feet.
Divide your roof pitch by 12.
If you measured in feet skip to calculate the area as square footage.
8 inches and you have an 8 in 12 pitch.
If you are trying to undertake this all yourself then you should really be looking for the most effective way of working out things like the hip roof square.
Dividing by 12 gives the ratio of inches in rise per distance.
Multiply the length by the width to arrive at the ground area of the house.
Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.
If this distance measures 4 inches you have a 4 in 12 pitch.
For many people being able to get the right kind of hip roof calculator is very important as knowing how to measure a hip roof is going to be vital to making sure that it turns out well.
If you don t want to do a lot of measuring you can use your pitch calculation to get an estimated square footage of your roof.
Once you know this number you can estimate the final price of the materials.
Use our roof pitch calculator to find the pitch of your roof.
If you measured in feet inches divide inches by 12 and add that to your feet measure to get total feet.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
For example you will need to figure out the exact number of shingles required to cover the entire roof area.
100 1 054 105 4ft 2.
