1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Figuring out square footage of roof.
Calculate project cost based on price per square foot square yard or square meter.
Measure the length and width in feet then multiply together to find the square footage.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Things you will need steel tape measure.
Shingles and other roofing materials such as underlayment are typically measured in squares that are 10 feet long and 10 feet wide with each square measuring 100 square feet.
How to calculate square footage for rectangular round and bordered areas.
The best part of a roofing calculator is that it offers a free insight into the total cost of the replacement roof project on a sq ft basis.
Calculate square footage square meters square yardage and acres for home or construction project.
Enter measurements in us or metric units.
So continuing our example if you ve got a two story house with a total square footage of 2 700 square feet with each floor having 1 350 square feet multiply 1 350 by 1 0541 to get 1 423 square.
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.
Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
When calculating square footage for your roof always add at least 10 percent of the total to account for waste.
Use our roof pitch calculator to find the pitch of your roof.
As you begin to calculate various costs you will see that the cost is a result of the interplay of many different variables including roof area in terms of footage measurement of any roof extras like.
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.
In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.
If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width.