The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span.
Roof itch requirements.
Let us recap on the minimum roof pitch required for each type of roofing material.
Minimum pitch for corrugated metal roof.
Minimum roof pitch for shingles it is important for shingle roofs to function properly and one method of ensuring that this is achieved is to observe the pitch requirements for the shingles.
It s very inexpensive and very accurate.
Minimum roof pitch for a covered porch minimum roof pitch.
A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible.
Asphalt shingles require a minimum roof pitch of 2 12 or greater.
Minimum required roof slope for roofing materials.
Anything above that will require you to put out higher cost because they are already considered as higher pitch.
Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater.
The covered porch roof pitch should match the existing house.
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.
Match roof material.
If you need help figuring out the slope or pitch of your roof we recommend this slope finder on amazon it s very inexpensive and very accurate.
The way pitch also known as roof slope is measured is rise over run.
The standard of lower pitch actually ranges between 1 12 to 5 12.
The minimum pitch is typically 3 12 meaning the roof should rise 3 inches for every 12 inches of horizontal foot.
Match pitch of existing roof.