Surface Area Of The Roof

This distance is the rise.

Surface area of the roof.

Our roof calculator uses base length and base width to find the estimated area. Dividing by 12 gives the ratio of inches in rise per distance. Roof pitch is given as the number of inches in height change over the distance of one foot. 1 roof square 100 square feet.

The base width is the distance from one corner of your roof to the other at its base on the short side of your house. Divide your roof pitch by 12. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12. And for a roof with a slope of 6 12 that number 1 118 is your roof slope multiplier.

To calculate the area of your roof first you ll need to calculate the pitch of it. L h 2 area calculating an area of a triangle when estimating a roof. Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118. So the actual roof surface if it were laid down flat on the ground would be 1 118 times larger than the footprint of the roof.

The area is based on the footprint of the roof which can be calculated by finding the area of the building and adding the area of the roof s overhang. Then proceed to draw the surface area of the roof that has a different pitch. Calculator online for a the surface area of a capsule cone conical frustum cube cylinder hemisphere square pyramid rectangular prism triangular prism sphere or spherical cap. Measure the distance from the surface of the roof to the bottom of the level at the 12 inch mark.

Online calculators and formulas for a surface area and other geometry problems. For example if your measurement is seven inches the rise is expressed as 7 12 in roofing terminology. Calculate the surface area of the roof. After drawing the perimeter of the roof add a new drawing layer with the plus symbol found in the bottom right corner.

Climb to the top of your roof. Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area. Next place your ladder against your house at the gable end. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

Calculate the unknown defining side lengths circumferences volumes or radii of a various geometric shapes with any 2 known variables. Place the other end of the level at the peak of the roof and hold it level. That gives you 5 590 square feet which is the actual area of the surface of the roof. Using dormer windows as an example you ll add a new layer after drawing each dormer.