A 8/12 roof pitch can also be expressed as 8 over 12 and when you're talking to a roofer, this is the most common way you'll hear it explained because it's easy to say in conversation.
A 8/12 roof pitch is steeper than average, so it is a little harder and more expensive to install. A benefit of this pitch is that it will shed water effectively without requiring larger gutters.
Another way to express a 8/12 pitch is "8 and 12."
In this pitch, the 8 represents your roof's rise and 12 represents the roof's run.
The roof's incline increases eight feet for every 12 feet of horizontal measurement.
What angle is an 8 over 12 pitch?
Roofs with a pitch of 8/12 are approximately 33.69 degrees, depending on how exact you'd like to be in your measurement.
Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
Pictured above is a roof replaced by Roof Hub in the Boston area we completed last Winter. Both the main roof and small roof over the exposed front porch is an 8 over 12 pitch. This is a steep residential roof and homeowners who are not experienced getting up on roofs should call a professional.