Skillion Roof Framing Details

The skillion and shed style roofs are framed with a single slope 2 4 or 2 6 or thicker rafters spanning from the low wall to the high wall.

Skillion roof framing details.

Skillion lean to roof profile diagram quest. Skillion roofs are one of the simplest roof styles used in shed building. If this is your first time to hear of a skillion roof here s what you should know. The attributes are significant than the standard smooth tents.

For this reason the rubber skins or roofing membranes that are necessary on flat or low pitched roofs may be done away with. A skillion roof is made up of a single flat plane which slopes gradually from top to bottom. Skillion roofs tend to be fairly steeply pitched which allows water to run off more effectively than on flatter roofs. Saltbox roofs look like skillion roofs but with an extra short slope opposite the long angled plane like an upside down check mark.

The roof space is generally inaccessible with little natural ventilation and the small roof space can accelerate problems with moisture. This roofing style has only one slope. In skillion roofs the roof cladding and ceiling run parallel typically within 300 mm of each other. The current standard skillion roof detail is often from the outside towards the inside metal roof cladding roof underlay purlin insulated rafters with a 25mm air gap and internal lining.

Skillion roof rafter detail diagram with all dimensions and birds mouths scale. Skillion roof construction detail basics information alternative names cost 6 essential skillion roof advantages and disadvantages. Mark out angle birds mouth. Your shed should have at least one window.

Skillion shed style roof framing. Skillion roofs are generally built upon rafters but cost considerably less than roofs that feature multiple slopes. The skillion roof is a distinctive roof consisting only one isolated unvarying surface. If it opens it can also let fresh air in so the door doesn t have to stay open.

If you plan to have eaves to protect the shed walls make sure you add the extra length when measuring the rafters. Roofs with good drainage require a less tightly sealed building envelope. A fair estimate for a skillion roof is anywhere from 6000 to 12 000 depending on various factors like the pitch and the materials used to build the roof. Skillion roof framing calculator plan diagram with full dimensions.

If you would move the detail above into a vertical position it would be like an external wall with vertical metal cladding. The skillion roof style makes it easy to put extra windows up high to let light in without making the contents of the shed visible to unwanted. The disparity between the standard roof and skillion roof is the distinguishable perpendicular pitch.