Minimum Roof Pitch For Shingles

Wood shakes require a minimum roof pitch of 3 12 or greater.

Minimum roof pitch for shingles.

What is the minimum slope for an asphalt shingle roof. Wood shingles require a minimum roof pitch of 3 12 or greater. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Metal roof shingles require a minimum roof pitch of 3 12 or greater.

That works out to about nine degrees if that works better for you. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. However it is regrettable that many installers usually ignore this requirement due to the desire for a quick installation process.

What is the minimum pitch slope of an asphalt shingle roof. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Tuesday september 11 2018. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.

Shingles of all types need to have a slope to function properly. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span. Asphalt shingles continue to be the most widely installed roof covering option in north america.