Match roof material and use appropriate slope match the roofing on the covered porch with the main roof.
Good slope for shed roof.
A shed roof slopes in one direction only.
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.
Because these roofs shed snow ice and rain more easily they tend to last longer than low pitch roofs.
The flip side to this is that it also becomes more expensive to build both in materials and logistical difficulty.
This image shows a shed with a roof pitch of 30 degrees with a covering of cedar shingles.
Sometimes the entire roof is a shed style roof.
The minimum pitch for.
Determine the minimum slope of the roof based on the roofing material.
Acceptable flat roof coverings include tin roof sheets and pre fabricated plastic sheets.
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.
Visit the shed roofing page.
Roof pitch for the shed roof pictured above the back has a 5 12 pitch.
This style was once used mainly on sheds but it s becoming more popular on residential homes.
Beyond that you re free to choose whatever slope best fits your plans for your shed.
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.
A roof with a slope of 10 degrees 2 12 or less is generally considered a flat 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.
For slopes below 20 degrees systems such as epdm fibreglass metal roofing can be used.
Basically the steeper the pitch the better it can shed snow and rain.
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.
Remember metal roofing is more expensive than shingles.
For lots more information on which roof finish to use for which slope and indicative costs.
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.
These roofs require you to have special equipment to walk on them safely.