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.

Shed roof ventilation detail.

60 divided by 2 is 30 sq. 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. Roof 2 wall vent has everything in the box you need to install. Make sure it s lying horizontally across the exposed rafters and that the edges are flush with the edges of the end rafters.

Install a screened vent near the roof at both gable ends and let the wind move fresh air in and the fumes out. A small shed such as an 8 8 can use 2 4 rafters but any bigger requires wider lumber. Shingle up to the area that requires the smartvent roof to wall vent application. Or smaller should have passive ventilation.

Put down your first sheet of plywood at the corner of one end of the roof. If you re installing a new shed aim one gable wall toward the prevailing wind. 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. Similarly a lean to saltbox or slanted roof shed can also be built with rafters and offers similar benefits in terms of headroom.

Typically you don t need a cupola with a ridge vent but it won t hurt anything to have one. Ensure there is proper continuous intake ventilation below proposed roof to wall ventilation. Of vent surface in and 30 sq. 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.

Drive a nail into each corner of the plywood to hold it in place temporarily. Remember rafters can offer more headroom in a shed since there are no truss webs impeding the space above your head. Shed roof ventilation instructions. Step 2 measure 3 out from the wall where the smartvent will bend up on the wall.