How to calculate square footage for rectangular round and bordered areas.
How do i measure my roof square footage.
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.
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.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
If you re determined to tackle a roofing job yourself it will be important to calculate the exact square footage of your roof in order to know how much material you ll need.
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.
After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof.
There are many great benefits to using google earth to measure your roof but nothing is as good as using diy s satellite roof measurement.
The google maps area calculator is not 100 accurate.
Calculate project cost based on price per square foot square yard or square meter.
After taking a few simple measurements you can figure out the area of your roof by sketching a rough diagram and breaking the roof up into smaller sections which you.
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.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
Calculate square feet meters yards and acres for flooring carpet or tiling projects.
This can make it even safer to do your measuring and it also removes a level of guessing to your calculation.
To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.
Enter measurements in us or metric units.
The first of which is that you don t even have to go up on the roof.
Things you will need steel tape measure.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
