Shed Roof Ventilation Detail

Typically you don t need a cupola with a ridge vent but it won t hurt anything to have one.

Shed roof ventilation detail.

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. Of vent surface in and 30 sq. Remember rafters can offer more headroom in a shed since there are no truss webs impeding the space above your head. Gaps in any type of insulation leak either your heat or cooling depending upon the season.

A small shed such as an 8 8 can use 2 4 rafters but any bigger requires wider lumber. 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. Put down your first sheet of plywood at the corner of one end of the roof. Similarly a lean to saltbox or slanted roof shed can also be built with rafters and offers similar benefits in terms of headroom.

Or smaller should have passive ventilation. Ensure there is proper continuous intake ventilation below proposed roof to wall ventilation. 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. Shingle up to the area that requires the smartvent roof to wall vent application.

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. Of vent surface out. Roof 2 wall vent has everything in the box you need to install.

If you insulate directly under the roof sheathing the heat from the sun will bake the life out of your shingles. Step 2 measure 3 out from the wall where the smartvent will bend up on the wall. Drive a nail into each corner of the plywood to hold it in place temporarily. 60 divided by 2 is 30 sq.