Plan Roof Area Formula

Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118.

Plan roof area formula. 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. Print full scale paper templates cut and fold over wood to mark and cut angles. Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area. Shingle roofs typically have a life span of 15 30 years.

Adjust to suit for a good straight fascia add an extra 20 mm or so to the tails of all your rafters total length. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. To do that you need to accurately calculate the area of your roof. Once you have your roof s pitch divide the number by 12.

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. And that s the number you were looking for. That gives you 5 590 square feet which is the actual area of the surface of the roof. The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans.

Our roof calculator uses base length and base width to find the estimated area. The roof slope height is 6 98m. Calculating area is easy in two dimensions but nearly all roofs slope up to a peak which adds a third dimension. Divide your roof pitch by 12.

Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing material calculator. Rafter join detail hip roof framing hip to common to ridge join diagram. Calculating the area true if you want to get the exact area measurement for your roof you can follow these steps. If you re planning to put a new roof on your house it s important to purchase enough matching shingles to complete the job.

How to calculate the roof area of a building. If your number is 1 3 squared would yield 1 9. This would yield 1 3 next square your result. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials.

Hip roof framing calculator plan diagram with full dimensions. 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.