Roof Length Width

Pitch is the incline of the roof represented as the ratio of rise to the span twice the run.

Roof length width.

First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. The width is measured simply straight across the top of. 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. 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.

You will need to express this size in terms of square feet. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. Let b the vertical rise in the roof and c the roof length building length gable overhangs.

One of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area. If you plan to have overhang etc. 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. For instance a 38 panel will have an effective coverage width of 36.

It is the length of this portion of the rafter. Length and width standard lengths for corrugated roofing are 8 10 and 12 feet. 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 base width is the distance from one corner of your roof to the other at its base on the short side of your house.

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. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. All formulae are below the calculator. Our roof calculator uses base length and base width to find the estimated area.

Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. The first step in a free roofing estimate is measuring the roof dimensions. The base length is simply the distance from the second corner to the third corner on the house s long side. 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.