The tools required will be a contractor s level at least 24 inches long and a tape measure.
Safe roof pitches in pa.
Most roofs in america follow these dimensions where pitch range is kept between 3 to 7 1 2.
Low slope roofs are from 0 to 3 12 in pitch.
Ways to work on a steeply pitched roof.
Notes to the table above.
Some sources consider low slope to include 3 12 pitch roofs.
If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks.
It is an essential element to ensure water drains properly off of your roof.
Pitches between 8 12 and 10 12 33 40 are also considered walkable but it is not advisable and if you have to walk on these roofs extreme caution should be taken.
The roof pitch would be described as a 6 12 pitch.
If not you will need to make your measurement from on top of the roof itself or at the edge of the roof with a ladder.
But since there is still a wide variety of slate roofing systems there are occasions when the minimum pitch can go down to as low as 15 0 depending on the uniqueness of the roof.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
With regards to the pitch the building standard code bs 5534 recommends a minimum pitch of 200 for slate roofs.
A roof of pitch 7 12 30 is manageable but caution should be taken.
Ideally you will have safe access to your roof from inside the building.
The possibility of slipping and falling makes working on any roof dangerous but it s especially so if the roof rises more than 4 feet for every 12 feet of.
An average person can easily and safely walk upon these roofs without need of additional equipment.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Measuring a roof pitch.
Know the pitch of the roof and follow the appropriate standard.
Contractors and employers who perform construction.
Pitch is a measure of the steepness of a roof.
The pitch of your roof also helps determine the type of materials that can be used on your roofing system.
A flat roof would have a 2 12 pitch while the average roof pitch would be between 4 12 and 9 12.
Roofing safety all employers in the construction industry must have a safety program.
If you want to build a shed garage or other similar type of building then 4 to 6 is a preferable pitch type.
A roof pitch of 6 12 26 5 or less is considered easily walkable and no extra precautions are required.
Any pitch higher than 9 12 is considered a steep pitch.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
