How To Calculate Hip Roof

Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries.

How to calculate hip roof.

A hip roof s square footage is equal to that of a gable roof with the same dimensions. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Select the following information by using the drop downs to enter values in feet and inches. To do this your best bet is definitely finding a good hip roof construction calculator so that you can work it all out in a timely and simple fashion.

Here you can calculate hip roof parameters by hip raise and base parameters. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials. The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. H b x tan α 2 common rafters b 2 x cos α hip rafters h 2 b 2 2 hip roof area 2 x common rafters x roof base length where h roof rise b roof base width α roof pitch tan tangent cos cosine.

Calculate the amount of asphalt or fiberglass shingles needed to cover a hip roof. How to use the hip roof framing calculator. From your average hip roof calculator to something more specific like a hip roof rafter calculator there is plenty to consider with this kind of calculation. 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.

The preview window displays a dimensioned plan view of the hip roof. 1 pyramid hip roof roof base is a square roof sides are identical isosceles triangles 2 hip roof roof base is a rectangle two sides are identical isosceles triangles and two sides are identical trapeziums.