How To Roof A Steep Slope

So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12.

How to roof a steep slope.

A roof with x rise 12 run slope means that for every 12 inches horizontally run it rises x inches. Or run the epdm membrane up the roof and keep shingles off the bottom portion. The exact roof slope in degrees is given by the arctangent. The slope of a roof often referred to as the pitch is determined by rise over run the roof s vertical rise in inches for every twelve inches of horizontal length the run.

It isn t hard as long as you are careful take your time do it right and be safe. The way pitch also known as roof slope is measured is rise over run. Thus pitch is typically greater in areas of high rain or snowfall. With some types of roofing shakes slate tile hips can be vulnerable too because they catch a lot of wind so it may be worth adding a strip of roofing membrane up the ridges.

The a frame style roof shown just above located on highway 61 just south of hovland minnesota is built at a 75 angle and is considered a very steep roof. How to measure roof slope the pitch of a roof is determined by the degree of fall over the span of 12 inches and a number is assigned to it for reference. Roof pitch is the measurement of roof steepness. Probably no home improvement is as tough yet satisfying as re roofing your house yourself.

If the fall is 1 inch over a 12 inch span the roof pitch is 1 12. If you happen to have an extremely steep roof you will have an even greater challenge. So a roof with four inches of rise every 12 inches horizontally run would have a slope of 4 12 sometimes displayed as 4 12. Steep to low slope transitions need membrane that runs 12 14 inches up the steep roof.

Table of roof slopes roof types walkability. Steep slope roofing the slope of a roof is often referred to as the pitch. The slope or pitch of the roof is determined by the vertical rise in inches for every horizontal twelve inch 12 length called the run.