Roof framing is always done differently depending on the style, size, and pitch of the shed.
Make sure you know how your shed is going to be framed before getting started. The basic principles of framing a shed roof are the same for all sheds. You will need to create gables, rafters, and connectors.
The way this is done varies from design to design depending on the style of the shed. Some styles like a gable roof require less cutting than a lean-to or a gambrel roof design would.
Calculating rafter lengths can also get difficult when dealing with odd-shaped roof slopes so make sure you have a calculator handy. Roof styles e.g. flat roof, lean to roof, saltbox roof, barn roof, lean to shed, type of garden shed, etc. also determine the roofing material and shed plans.Framing a roof requires some major cuts and framing skills but once you've completed them you'll be familiar with the process. The process starts the same way for all sheds - you need to create your rafters, then your gable ends, and finally the ridge board that runs along the top to form the roof line.
After that, you'll be ready to lay down your first piece of plywood. On the plywood install asphalt shingles and then at the drip edge, install a fascia board.
The sloping roof on the opposite sides from a single line is a gable roof. The roofing materials for this kind of roof style are always designed according to the local climate so that they may provide higher protection than flat roofs. The local council is the best place to start for advice regarding the roof pitch and roof sheathing. The wall studs, wall plates, shed floor, exterior walls, front wall, steep slope, and many other factors must be kept in mind for gable roofs to maintain the roof load.
This largely depends on personal preference. If you are trying to get the most benefit from your shed and want to be able to walk along the sides under protection aim for 2-3 feet at the minimum. An overhang will help keep rainwater off of you easily and stop water from dripping onto your things laying around in the shed. Rafters need to overlap a minimum of 3 inches and be secured firmly at the top by either a connector or rafter support nailer if they are less than 2 x 4s.
The basic materials you need to build a shed roof frame are decking boards, plywood sheets and nails. You may also want to use something called rafter support nailers. These come in various lengths and can be nailed into the tops of your rafters for extra added support and strength. You may also want to use a rafter connector at both ends of the rafters.
Plywood gusset plates are also needed to keep intact the joints. A framing square holds the ceiling joist and is then put on the side walls. You may also need ridge board to support the frame for roof construction. A level is possibly one of the most important tools as well when it comes to framing a shed roof.Yes, you can use 2x4 for a shed roof, however, they are not the best to use for building sheds. It is possible but go for a more sturdy option such as 2x6 so that there is adequate support and strength when using 2x4s in rafters. 2x4s are better for creating gables and secondary support.
Building materials such as pressure-treated lumber are best to use for your upper rafters so that the roof will last much longer. To help make your shed roof last longer consider using a water sealant. The sealant will protect the wood from rotting and insect damage as well as help keep it looking great for years to come. For those wondering if you need building approval, Brisbane City Council has a handy guide, however people living elsewhere will have to refer to their appropriate government or council body.