Shed Roof Slope Angle

Pitch and angle finder device to determine the roof slope.

Shed roof slope angle.

A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible. While other site specific considerations may exist in your exact situation the primary elements that influence your design will simply be intended purpose for the shed local climate and aesthetics. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. Thus a 4 12 pitch would be a 33 slope.

The steeper the slope of your roof the better it will deflect rain sleet snow falling leaves and other materials that find their way on top. Roof pitch calculator the roof pitch measures the steepness of your shed roof and typically takes values from 1 to 12. Easy rafters is designed to calculate shed roofs that are framed to a ledger board nailed against a vertical wall not freestanding shed roofs supported by walls at both ends. A 4 12 pitch is around 18 5 degrees but not exactly.

A roof with a slope of 10 degrees 2 12 or less is generally considered a flat roof. Felt shingle systems can achieve lower slopes down to about 20 degrees. Roof pitch and corresponding angle of degree turn in a set of building blueprints with a pitch less than 3 12 or build a shed style roof with a low pitch and your building inspector will not pass the construction and provisions will have to be made to get the pitch up to acceptable standards if it is going to be shingled. Acceptable flat roof coverings include tin roof sheets.

For slopes below 20 degrees systems such as epdm fibreglass metal roofing can be used. Visit the shed roofing page. The roof pitch is determined by the rise and run of the roof. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

A slope of 6 12 for example means that for every 12 inches 30 cm of length the angle of your roof rises 6 inches 15 cm. If your roof pitch is greater than 3 your roof is considered pitched. A quick look at all three of these factors will make it easy to find a pitch that will work for your shed. You can also divide the rise over run multiply by 100 and get a percentage.