Roof Slope 1 8 Per Foot

What is the standard pitch for a roof.

Roof slope 1 8 per foot.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Same logic with 1 8 slope 1 16 slope etc. However you can only use this pitch with built up roofing or specialized synthetic roofing. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

Run the string across the site and tie it on the toe tautly at the same fixed height on the stake. Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. The slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches. Drag sliders to animate the results and diagram.

To put it in perspective the angle of this slope would be around 30 degrees. Slope conversion tables 1 4 1 2 3 4 1 1 1 4 1 1 2 1 3 4 2 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 25 0 50 0 75 1 00 1 25 1 50 1 75 2 00 2 25 3 4 5 6 7 8 9 10. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. If the slope is 4 12 the pitch for the 24 foot span is 1 6.

Slope minimums for various roof coverings. Visit this page using a phone or tablet to directly measure. Roof pitch is used to describe the slope or angle of the roof. And pitch is a fraction derived by dividing the rise by the entire span.

Remember slope is expressed as a ratio and in inches per foot. The triangle diagram will be re drawn to scale with all dimensions marked. Determine the desired grade typically 1 2 1 8 per foot to 1 4 per foot is enough to provide enough runoff. This means that the rise of the slope goes up or down 8 inches for every 12 inches.

The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The stake at the bottom of the slope is called the toe. An example for a steep sloped roof is 8 12.

If the pitch is 1 3 the slope is 8 12. A roof with a 6 rise for every 12 run has a 6. Tie a string at a fixed height on the hinge. Contemporary houses often have flat roofs which shouldn.

Pitch run scale.