18 43 asphalt shingles with special underlayment requirements 2 in 12.
Minimum slope roofing material.
Finding the right products for your low slope roof.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Many factors determine which roofing materials you can use and one make or break factor is the slope of the roof known as roof pitch.
Minimum pitch for corrugated metal roof.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
The minimum pitch for shingles is 1 6 which is equivalent to 4.
Generally roofing types and roofing products are typically divided up into two primary categories steep slope roofing and low slope roofing.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Residential low slope roofing can generally be divided up into two broad categories.
Steep slope roofing is generally referred to as residential roofing due to the fact that most single family homes in the u s.
In 12 0 25 in 12 1 19 built up roof coal tar pitch.
We can even help you find a professional to install it.
Experience the total owens corning roofing system and high quality roofing shingles.
The corrugated metal roof minimum slope is 5 degrees.
It is the recommended slope as there is no guarantee if you opt for flatter pitch than this.
Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you.
Are framed with a steep slope roof pitch.
The steeper the roof slope the less potential for water to backup however the roofing materials established in chapter 9 must meet to minimum slope requirements.
Minimum required slope x in 12 minimum required slope degrees asphalt shingles.
Roofing material or system.
For instance steep pitches lead to more roofing material being used.
Match the roofing on the covered porch with the main roof.
Corrugated roofing is an amazing choice for conventional pitched roof despite having the severe limitation about the pitch.
9 46 built up roof asphalt.
Determine the minimum slope of the roof based on the roofing material.
Factors affecting minimum roof pitch.
Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically.
Due to the fact that there are many roofing styles and different kinds of roofing materials there is no universal minimum roof pitch.
For example you may think you want classic composite shingles on your roof but if the pitch is below a certain ratio you may be forced to install a different type of roofing perhaps rolled roofing or.
Minimum required roof slope for roofing materials.
