Plan Roof Area Formula

Our roof calculator uses base length and base width to find the estimated area.

Plan roof area formula.

Dividing by 12 gives the ratio of inches in rise per distance. If your number is 1 3 squared would yield 1 9. And that s the number you were looking for. The roof slope height is 6 98m.

Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing material calculator. Calculating area is easy in two dimensions but nearly all roofs slope up to a peak which adds a third dimension. The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans. Calculating the area true if you want to get the exact area measurement for your roof you can follow these steps.

Print full scale paper templates cut and fold over wood to mark and cut angles. If you re planning to put a new roof on your house it s important to purchase enough matching shingles to complete the job. To do that you need to accurately calculate the area of your roof. That gives you 5 590 square feet which is the actual area of the surface of the roof.

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. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. Roof pitch is given as the number of inches in height change over the distance of one foot. Adjust to suit for a good straight fascia add an extra 20 mm or so to the tails of all your rafters total length.

Rafter join detail hip roof framing hip to common to ridge join diagram. Roof width m x roof slope height m half roof area m take this example of a perfectly square house with 76m floor space a 45 pitched roof and a 2 35m roof height. A rafter for a roof with a 6 12 slope will be 1 118 times as long as the. Shingle roofs typically have a life span of 15 30 years.

This would yield 1 3 next square your result. How to calculate the roof area of a building. This applies to lengths as well as areas. 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.

Hip roof framing calculator plan diagram with full dimensions. Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area. Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118.