Shed Roof Ventilation Detail

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.

Shed roof ventilation detail.

Of vent surface out. Roof 2 wall vent has everything in the box you need to install. Shingle up to the area that requires the smartvent roof to wall vent application. Install a screened vent near the roof at both gable ends and let the wind move fresh air in and the fumes out.

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. Drive a nail into each corner of the plywood to hold it in place temporarily. 60 divided by 2 is 30 sq. Or smaller should have passive ventilation.

A small shed such as an 8 8 can use 2 4 rafters but any bigger requires wider lumber. Similarly a lean to saltbox or slanted roof shed can also be built with rafters and offers similar benefits in terms of headroom. Put down your first sheet of plywood at the corner of one end of the roof. If you insulate directly under the roof sheathing the heat from the sun will bake the life out of your shingles.

If you re installing a new shed aim one gable wall toward the prevailing wind. Remember rafters can offer more headroom in a shed since there are no truss webs impeding the space above your head. Ensure there is proper continuous intake ventilation below proposed roof to wall ventilation. Typically you don t need a cupola with a ridge vent but it won t hurt anything to have one.

Cold roof insulation between rafters wnapor barrier on warm side below orw sheatiiing roofing roofing 2 x 8 sleepers notched for vent aligned wi rafters flashing over rooang fascia sheatiiing 2 x 4 sleepers aligned w rafters provide continuous air channel for ventilation 3 112 continuous screened vent continuos. Gaps in any type of insulation leak either your heat or cooling depending upon the season. 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. Step 2 measure 3 out from the wall where the smartvent will bend up on the wall.