Suggested Roof Pitch

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Suggested roof pitch.

Understanding a roof s pitching can be quite tough if you are just getting started and working with a roofer can leave you a little bit unsure about what is being suggested with regard to the job there s so much to learn that it can become a bit baffling. The ibhs recommends a 4 to 6 pitch roof. This is for the top level of a 3 story building that is 26 by 64. It is an essential element to ensure water drains properly off of your roof.

The pitch of your roof also helps determine the type of materials that can be used on your roofing system. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. The most commonly used roof pitches fall in a range between 4 12 and 9 12.

One engineer recommends a 12 12 pitch for the new roof while another recommends a 7 12 pitch. Roof pitch is often expressed as a ratio between rise and run in the form of x 12. The primary reason roof pitch exists in the first place is to redirect water. It can be assessed in two ways either as the angle the rafter makes with the horizontal or the proportion between the rise and the run of the roof.

Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled.