Roof Length Width

It is the length of this portion of the rafter.

Roof length width.

The metal roof length calculator calculates the distance from peak to trim so add the length you want the roof metal to extend beyond the eave trim. All formulae are below the calculator. 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. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.

If you plan to have overhang etc. Our roof calculator uses base length and base width to find the estimated area. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. For instance a 38 panel will have an effective coverage width of 36.

This data allows us to calculate the roof triangle as we know two sides b and c of the three sides of a right triangle the red lines in our photo at above left. The rafter member will be longer. The first step in a free roofing estimate is measuring the roof dimensions. Let b the vertical rise in the roof and c the roof length building length gable overhangs.

Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy. The width varies greatly depending on the style of roofing. For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4. The width is measured simply straight across the top of.

Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2. The base length is simply the distance from the second corner to the third corner on the house s long side.

You will need to express this size in terms of square feet. Length and width standard lengths for corrugated roofing are 8 10 and 12 feet. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2.