Pitch Asphalt Roof

So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

Pitch asphalt roof.

Metal roof shingles require a minimum roof pitch of 3 12 or greater. Shingles of all types need to have a slope to function properly. What is the minimum pitch slope of an asphalt shingle roof. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater.

For those who don t understand the roof pitch number here is a way to envision it. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run. Asphalt a by product of processing petroleum to make gasoline fuel oil and various hydrocarbon polymers was also popular. California roofing laws cover everything from licensure of the roofing company to the types of shingles that must be used to the slope of the roof.

For every 12 inches you travel on your ceiling the roof will rise 4 inches in height. Asphalt composition shingles are designed to be installed on roof slopes greater than a 4 in 12 pitch. People choose this roof over other roofing options due to its easy installation and adaptability. Pitched roofs are most often associated with asphalt shingles although standing seam roofs are becoming ever more popular on pitched roofs as well.

This roof is resistant to extreme weather conditions and can add great value to your home. What is the minimum slope for an asphalt shingle roof. Roofing systems originally consisted of alternate layers of hot bitumen and reinforcement. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12.

Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. The asphalt shingle roof is the widely used roof covering in north america. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

Coal tar pitch was a by product of processing coal to make coke which in turn was used in making carbon steel and electrodes for the aluminum industry. Make sure to get training on general roofing hazards and working at heights. Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum requirement is 2 12.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Shingles can be fabricated from a wide range of materials such as asphalt least expensive to natural wood metal tiles and heavy slate most expensive. Asphalt shingles require a minimum roof pitch of 2 12 or greater. California roofing codes establish a list of rules that all builders and contractors must adhere to in order to ensure safe building practices within the state.