Your total number would be either 1 386 or 1 474 square feet.
How to find square feet of a roof.
How to calculate square footage for rectangular round and bordered areas.
The answer is the number of roofing squares for the roof.
A square simply refers to a 10 x 10 square of roofing.
You will need to express this size in terms of square feet.
For instance if the roof is 1550 square feet then it is 16 squares.
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.
Calculate project cost based on price per square foot square yard or square meter.
The roof area for a hip end is the same as for a gable end the intersection is equivalent to a hip slightly conservative so there is usually no need to consider triangles when measuring a roof.
To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet.
Roof pitches in degrees.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.
As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.
Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.
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.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Calculate square feet meters yards and acres for flooring carpet or tiling projects.
How to estimate roofing materials.
Calculate square footage square meters square yardage and acres for home or construction project.
1 200 x 1 05 1 260 square feet to allow for hips ridges and waste add 10 of your final number for a gable roof and 17 of your final number for a cottage roof.
The total amount of roofing material you need is 17 300 1 730 19 030 square feet.
This is simply 100 square feet of roof.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
To find the squares divide the overall roof area by 100 and then round up.
Enter measurements in us or metric units.
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.
The first step in a free roofing estimate is measuring the roof dimensions.
The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials.