Shed Roof Ventilation Detail

Shingle up to the area that requires the smartvent roof to wall vent application.

Shed roof ventilation detail.

If you insulate directly under the roof sheathing the heat from the sun will bake the life out of your shingles. Remember rafters can offer more headroom in a shed since there are no truss webs impeding the space above your head. If you must vent the shed roof the most workable fully vented roof assembly is the icehouse roof in which a first layer of sheathing is roofed with 15 felt or a waterproofing membrane and flashed tightly to the wall. If you want to vent your shed roof and don t want an attic space you ll need to allow air to travel from a vent at the lower eave to a vent at the higher eave between the roof sheathing and the metal roofing.

Make sure it s lying horizontally across the exposed rafters and that the edges are flush with the edges of the end rafters. Gaps in any type of insulation leak either your heat or cooling depending upon the season. Of vent surface out. Cor a vent s roof 2 wall vent does just what is says it s a complete ventilation package for the tough to vent detail where a pitched roof meets a vertical wall.

Typically you don t need a cupola with a ridge vent but it won t hurt anything to have one. Of vent surface in and 30 sq. A small shed such as an 8 8 can use 2 4 rafters but any bigger requires wider lumber. Step 2 measure 3 out from the wall where the smartvent will bend up on the wall.

Similarly a lean to saltbox or slanted roof shed can also be built with rafters and offers similar benefits in terms of headroom. 60 divided by 2 is 30 sq. Drive a nail into each corner of the plywood to hold it in place temporarily. If you re installing a new shed aim one gable wall toward the prevailing wind.

Shed roof ventilation instructions. Install a screened vent near the roof at both gable ends and let the wind move fresh air in and the fumes out. Or smaller should have passive ventilation. Put down your first sheet of plywood at the corner of one end of the roof.