Roof Slope For Shingles 2 12

Shingles that are not self sealing must be hand sealed with asphalt roofing cement.

Roof slope for shingles 2 12.

That works out to about nine degrees if that works better for you. For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep. 18 43 asphalt shingles with special underlayment requirements 2 in 12. 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.

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Metal roof shingles can only be installed on roof slopes of 3 12 or greater 25 slope. Asphalt shingles continue to be the most widely installed roof covering option in north america.

What is the minimum slope for an asphalt shingle roof. For every 12 horizontal feet the roof changes 8 feet in vertical height. In 12 0 25 in 12 1 19 built up roof coal tar pitch. 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. 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. 9 46 built up roof asphalt. Considering the roof slope requirement is important.

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. The minimum requirement is 2 12. A corresponding editor paul fisette replies. High and low pitch examples.

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. Minimum required roof slope for roofing materials. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Roof pitch basics a 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.

Roofing material or system. The minimum slope for an asphalt shingle roof is 2 12. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Why is 2 12 the minimum.

A shingle roof like this north dallas garage in the photo above may have a failure no matter how good a job the installer did. 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. This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units. Minimum required slope x in 12 minimum required slope degrees asphalt shingles.