Roof Pitch Vs Slope

Because slope affects how water is shed from a roof surface and determines the limits for using asphalt shingles understanding how to measure the slope of a roof may be valuable to a home inspector.

Roof pitch vs slope.

The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run. The pitch of the roof pertains more to the actual construction of the house whereas the slope is more relevant to the roofing of your house. Plus since the low pitch requires fewer materials and less work than the steep pitch it comes at a lower cost. Slope minimums for various roof coverings.

A steep slope to a roof makes it more difficult for wet snow to accumulate and put undue stress on your roof. If the pitch is 1 3 the slope is 8 12. This can be very effective for certain ranch styles porch rooftops or modern geometric rooftops. Remember slope is expressed as a ratio and in inches per foot.

If the rise is 6 inches for every 12 inches of run then the roof slope is 6 in 12 the slope can be expressed numerically as a ratio. Picking a low pitch or slope for your roof will give your rooftop a flatter more box like look. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a 4 in 12 slope. Roof pitch can be a health and safety issue on homes in geographic areas that experience heavy snow and rain.

If the slope is 4 12 the pitch for the 24 foot span is 1 6. March 18 2019by american roofing. The steepness of your roof also known as the roof pitch or slope is an important decision to make for your property especially when considering residential roofingchanges. Slope is the ratio measured in inches per foot.

And pitch is a fraction derived by dividing the rise by the entire span.