Roof Multiplier For 12 12 Pitch

The pitch of the roof is the rise over a 12 inch run.

Roof multiplier for 12 12 pitch.

Use our roof pitch calculator to find the pitch of your roof. C sqrt 5 2 12 2 sqrt 169 13 in. The value arrived at 928 reflects the square feet of the roof. The first thing that you need to understand before picking any selections from a roof pitch multiplier chart is to ensure that it s affordable.

If this isn t practical then perform the same measurement on the underside of the roof. Helps determine what materials are suitable for your roof. What is the multiplier. 100 1 054 105 4ft 2.

Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area. For example a 4 12 pitch roof that is 100 square feet. 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. Multiply 20 and 40 which equals 800.

Pitches between 8 12 and 10 12 33 40 are also considered walkable. Using the pythagorean theorem we find that for every 12 inches the roof spans horizontally there are 13 inches of actual roof. Get your roof size by using this roof pitch calculator. The pitch of this roof is 4 8 12.

Multiply step 1 and step 2 i e. Roof pitch multiplier 13 over 12 1 08. Find the value of 7 12 from the roof slope multiplier table which is 1 16. Why figure what your roof pitch is.

For example a roof with a pitch of 1 cannot use metal shingles. Now divide the rise by the multiplier to get the pitch eg. A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof. A roof of pitch 7 12 30 is manageable but caution should be taken.

Roof is 6 12 pitch and measures at 2 400 square feet. 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. Then the roof multiplier is. Roofers typically refer to it as a pitch and can be found by factoring the rise over a 12 inch run.

800 multiplied by 1 16. We included a roof pitch chart below the 7 12 example image and the calculator below that. If the home measures 20 x 40 and has a 7 12 roof then to calculate the slope of the roof follow these steps. Typically the steeper the roof is the higher the price will be.

Roof pitch degree table. So 2400 x 1 12 2 688 2 88 sqs added for pitch. Image 1 12 to 12 12 roof pitch 7 12 pitch. 48 10 4 8.

A flat roof has a pitch of 1 meaning the material needed is 1.