Step 1 find the square footage of the roof.
How to find roof squares.
How to calculate the roof area using the building square footage the pitch of the roof.
Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
The first step in a free roofing estimate is measuring the roof dimensions.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
You can also zoom the map and click on the starting point of the roof you wish to select.
Pitch measurement method 1.
To find the squares divide the overall roof area by 100 and then round up.
Add up the square footage for each surface to get the total square footage of your roof.
The next step is to measure the pitch also referred to as the roof slope of the roof deck.
How to estimate roofing materials.
How to determine your roof pitch.
Measure the length and width of each portion of the roof multiply length by width for each plane and then add the planes together for the total square footage 1 x research source if you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
Divide the total footage by 100 to determine.
If your roof has dormers hips or other complex elements don t forget step 2 determine the total number of squares.
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.
So you re thinking of reroofing the house yourself and want an estimate for how much roofing material you.
You ll need to figure out the vertical distance also known as the rise over a 12 horizontal segment.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
There are many options here and you ll want to select the one that allows you to enter the address.
You will need to express this size in terms of square feet.
Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.
Things you will need steel tape measure.
A square simply refers to a 10 x 10 square of roofing.
If this distance measures 4 inches you have a 4 in 12 pitch.
8 inches and you have an 8 in 12 pitch.
For instance if the roof is 1550 square feet then it is 16 squares.
This is simply 100 square feet of roof.