How To Estimate Roofing

Ranch house using asphalt roof shingles.

How to estimate roofing.

From the diagrams there are two intersecting roofs measuring 114 feet and 30 feet at the eaves with equal rake of 18 feet. To accurately calculate the area of your roof you must first determine its slope or pitch. This is simply 100 square feet of roof. Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.

If you re estimating materials for your roofing project you can use our roofing calculator to estimate the number of squares you ll need or use our roof pitch calculator to find the pitch. The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator. To find the squares divide the overall roof area by 100 and then round up. Approximate price in dollars the estimate of a final price will depend to a large degree on the overall size of your home i e.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof. Roof area measured in sq ft number of squares. Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.

For instance if the roof is 1550 square feet then it is 16 squares. This is a rather complicated way to estimate a roof area and hardly suited to the diy fans. 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 average roof replacement cost is 4 200 6 600 on a 1 600 sq ft.

Roof width measured in feet roof pitch. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials. Roofing cost can vary widely depending on the size and complexity of your roof type of materials you use as well as your location. Roof type either gable or hip using these four inputs you will get several basic outputs.

The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area. However if you use premium materials such as metal wood shingles clay tile etc the cost of your roof will be at least 9 500 16 000. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. How to estimate roofing materials.

All pricing information on this page is based on average industry costs and is subject to variance for project specific materials labor rates and. A 12 in 12 pitch is a.