The roofing angle or pitch are determined by its vertical and horizontal angle, or the base length and width of the roof. It’s calculated by the number of inches the roof vertically rises for every 12 inches of horizontal extension. For example, if your roof is vertically raised by 6 inches for every 12 inches of horizontal run, its pitch will be 6:12.
Knowing the exact pitch of your roofing system is essential, especially when you are planning to install a new addition like rake boards or a lighting system. You have to know your pitch so you can ensure that it’s safe to add the new design or installation.
Calculating Roof Pitch
To calculate the roof’s pitch, roof installation providers say you only need an 18 to 24 inches level, a pencil and a tape measure. Measure 12 inches from the level’s end, and mark it. In the attic, take the end of the level, and place it at the roof rafter’s bottom. Then, vertically measure from the base mark of the level up to the rafter’s underside. The number of the measurement to which the roof rises in 12 inches is your roof’s pitch.
Roof Slope and Styles
There are two main slope and style categories used during roof installation. Homeowners choose between sloped and flat roofs. If you have a roof with 2:12 inches or less slope, you have a flat roof. If it’s 9:12 inches, it’s a steep-sloped roof. Steep-sloped roofs are aesthetically pleasing and also more durable compared to other roof types.
That said, this particular design does not come cheap. Choosing a steeper-sloped roof is expensive and can cost 50% more compared to an average sloped roof. However, you can rest assured that you won’t need as many roofing repairs because it requires less maintenance.
Call Crown Roofing at (604) 210-6655 for professional roofing services. We serve clients in Surrey and New Westminster.