Good Slope For Shed Roof

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.

Good slope for shed roof.

Determine the minimum slope of the roof based on the roofing material. There are advantages and disadvantages to having a steep pitch versus a shallow or low pitch the most obvious of which is the roof s ability to shed or withstand heavy snow rain or wind. For slopes below 20 degrees systems such as epdm fibreglass metal roofing can be used. This style was once used mainly on sheds but it s becoming more popular on residential homes.

A shed roof slopes in one direction only. If you have to go with a roof pitch less than 3 12 then it would either have to be a metal roof or a roof covered with a rubber membrane to prevent water penetration. Visit the shed roofing page. A roof with a slope of 10 degrees 2 12 or less is generally considered a flat roof.

Acceptable flat roof coverings include tin roof sheets and pre fabricated plastic sheets. The minimum pitch for. This image shows a shed with a roof pitch of 30 degrees with a covering of cedar shingles. Roof pitch for the shed roof pictured above the back has a 5 12 pitch.

For lots more information on which roof finish to use for which slope and indicative costs. 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. Remember metal roofing is more expensive than shingles. Steep pitched roofs are those with a pitch of greater than 7 12.

A quarter inch slope is the lowest you would go with a metal roof experts recommend at least a half inch minimum to ensure a weatherproof interior for your shed. Match roof material and use appropriate slope match the roofing on the covered porch with the main roof. Whereas a hip roof and other popular roof types have at least two sides the shed roof has a single slope that can vary in steepness depending on the design. Beyond that you re free to choose whatever slope best fits your plans for your shed.

The flip side to this is that it also becomes more expensive to build both in materials and logistical difficulty. Sometimes the entire roof is a shed style roof. It is possible to calculate a birdsmouth near the top of the rafter for a freestanding shed roof by checking the kneewall checkbox and entering a setback for the kneewall that positions the upper birdsmouth in the desired location. Because these roofs shed snow ice and rain more easily they tend to last longer than low pitch roofs.