Roof Pitch Waste Factor

Roof pitch factor calculator.

Roof pitch waste factor.

A flat roof has a slope of 2 in 12 or less. Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level. The run always remains constant at 12 inches. That is the roof s rise.

Ridge length top ridge. If you have already decided that you are going to have pitched roof on your house then you have made a nice decision. There are two main categories of roofing. A roof pitch multiplier also called a roof pitch factor is a number that is multiplied by the area covered by a sloped roof to produce the area of the actual surface of the roof for roof slopes expressed as x in 12 rise in run the roof pitch multiplier is determined by finding the square root of rise run 1.

The top row is a total of your roof area measurements with pitch added 5 for waste. To obtain an accurate roof pitch measurement properly measure the rise and run. The waste is 4295 92 95 divisor 4522 02. The 3977 70 is the total of your actual roof measurements.

The headache of using pythagoras and trigonometry can be spared by making use of these charts. A low slope roof is anywhere from 2 in 12 to 4 in 12. The material type waste can be auto calculated for wood shake wood shingle composite or laminated shingles the valley type for composite and laminated shingles the starter course. Roof waste is automatically calculated based on seven factors.

A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run. That means its pitch is 5 12. If you do not want to add for waste then enter 100 as the divisor. The roof slope factor chart also consists of conversion factors to determine the slope of the roof.

Roof waste calculation accurate roof waste calculator this download requires a 200 donation via paypal. Starter strip the perimeter of the roof in lineal feet including the rakes. Ft enter a waste factor. Divide the rise by the run the run is 12.

Conventional slope roof range between 4 in 12 and 8 in 12. The amount of exposure. The sub total is 3977 70 x 1 08 4295 92 pitch has been added for 5 12 pitch. The sketched roof model.

You also know how ridiculous this is. The roof waste calculation tool takes the guesswork out of estimating sketched roofs and provides an accurate and consistent method for calculating the amount of roofing material required for waste. Roof slope style. There are lots of advantages that you can get by having pitched roof on your house as compare to flat roof.

10 for all gable roofs 15 for all hip roofs. Then you ll be able to measure slope from an unfinished attic space under the roof. Roof area total square footage of the roof. Enter the pitch of the roof.

You need to account for the pitch in order to have an accurate materials estimate. Would anyone believe the waste factor for the two. First measure the roof s pitch. Rise 12 enter the square foot one pack will cover.

Pitched roof provide you protection again heavy rains. Now measure upwards at a 90 degree angle to capture how much the roof rose over that length.