How To Roof A Steep Slope

If the fall is 1 inch over a 12 inch span the roof pitch is 1 12.

How to roof a steep slope.

Steep to low slope transitions need membrane that runs 12 14 inches up the steep roof. 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. A roof with x rise 12 run slope means that for every 12 inches horizontally run it rises x inches. A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.

The exact roof slope in degrees is given by the arctangent. Or run the epdm membrane up the roof and keep shingles off the bottom portion. The way pitch also known as roof slope is measured is rise over run. Probably no home improvement is as tough yet satisfying as re roofing your house yourself.

It isn t hard as long as you are careful take your time do it right and be safe. Steep slope roofing the slope of a roof is often referred to as the pitch. Thus pitch is typically greater in areas of high rain or snowfall. 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.

Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. 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. 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. 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.

If you happen to have an extremely steep roof you will have an even greater challenge. 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. 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.