A couple of points worth noting are that the steeper you make the roof the more it will cost to build due to an increase in the amount of materials needs but the steeper the roof is the longer the roofing materials are likely to last.
Examples of shed type roofs with maximum slope.
For example you may think you want classic composite shingles on your roof but if the pitch is below a certain ratio you may be forced to install a different type of roofing perhaps rolled roofing or standing seam metal roofing.
If you are only trying to keep a wood pile dry or storing a few outdoor tools and light machinery out of the weather then you might consider a simple single pitch roof since most everything inside will be stored at ground level and pulled out from the outside of the shed.
This gives you more options for finishing the roof in a style you like with a material that has the durability and maintenance requirements that fit your preferences.
Roof pitch multiplier table.
Hip roofs like gable roofs can be with almost any type of roofing material such as shingles metal or tiles.
For our example it would be 2 4 x 100 50.
Using our previous dimensions the equation is rise run x100 the percent of your roof pitch.
Many factors determine which roofing materials you can use and one make or break factor is the slope of the roof known as roof pitch.
A gable roof is probably the most versatile type of shed roof and the most common as it can handle any type of pitch.
An important factor to throw into a discussion about roof pitches is local planning rules and regulations.
The shed roof pitch has two slopes and the window above eaves level allows additional light into the shed.
A skillion or shed style roof shed has one wall higher than the opposite wall creating a single slope roof.
Much depends on what your intended use for the shed actually is.
Roof slope equivalents as rise.
Because of the slope on a shed roof it allows for almost any type of roofing material.
2 6 or greater planks span the distance between the high wall and the low wall often with an overhang.
The most common type of a hip roof.
Lean to shed roof design.
Degrees to pitch rise in run table.
The sides come together at the top to form a simple ridge.
Run in degrees and as percentage the minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.
This simple diagram will help give you a better idea of how shed roof pitch or for that matter any other type of roof pitch works.
Complete list of roofing types.
Types of hip roofs.
Here are a few methods to easily find the roof slope on your existing shed.
One of the best metal roof profiles that is designed for use on low slope roofs is the pbr profile.
It looks like half a gable roof.
It is a commercial rated roofing panel and works well for lean to shed roofs.
Designing a lean to shed so that it can work.
Here in the uk there is a limitation on the height of shed roofs when they are close to boundaries which many sheds are.
It is one of the easiest roofs to build and usually the least expensive.
Building codes and roofs.