Roof Slope For Shingles 2 12

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.

Roof slope for shingles 2 12.

That works out to about nine degrees if that works better for you. Minimum required roof slope for roofing materials. Considering the roof slope requirement is important. The minimum requirement is 2 12.

High and low pitch examples. The cabo one and two family dwelling code permits the installation of asphalt shingles on roofs with a slope as low as 2 12 if the shingles are double coverage self sealing versions. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important. 18 43 asphalt shingles with special underlayment requirements 2 in 12.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. A corresponding editor paul fisette replies. Asphalt shingles continue to be the most widely installed roof covering option in north america. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. 9 46 built up roof asphalt. Asphalt shingles should never be applied to roof slopes below 2 12 2 of vertical rise for every 12 of horizontal run or 9 5. Shingles that are not self sealing must be hand sealed with asphalt roofing cement.

The roof pitch between 2 12 and 4 12 is considered as a low pitch roof so shingles can be installed in the roof slope between 2 12 and 4 12. Metal roof shingles can only be installed on roof slopes of 3 12 or greater 25 slope. Simply put it s a shallow roof. What is the minimum slope for an asphalt shingle roof.

Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle. With respect to shingle application roof slopes from 2 12 to less than 4 12 18 5 are called low slope roofs while roof slopes of 4 12 or greater are called normal or standard slopes. Shingles of all types need to have a slope to function properly. In 12 0 25 in 12 1 19 built up roof coal tar pitch.

For example if it is a very low slope water including snowmelt or. For every 12 horizontal feet the roof changes 8 feet in vertical height. Why is 2 12 the minimum. Roofing material or system.

Roof pitch basics a 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. The minimum slope for an asphalt shingle roof is 2 12. For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep. Minimum required slope x in 12 minimum required slope degrees asphalt shingles.