Hi everyone. I’d posted this elsewhere on the site, & was re-directed here.
My question concerns ventilating a small shed, which is covered in corrugated steel.
The shed gets pretty hot during the summer months (in spite of having a window), & I’m wanting to install at least one roof vent (the simple style, non-powered). I have a cordless rotary tool to cut a hole in the roof, but I’m just wondering if there is a preferred approach to mounting a vent flush against a corrugated roof. It looks like most ordinary vents will fit between the large ribs in the corrugation.
Obviously, the corrugation makes it tricky sealing the base of the vent against the metal for a tight seal (I can tuck the top edge of the vent’s base under the metal ridge at the roof’s peak). Still, I’m leery of hacking a hole in the roof & having the end result look terrible, or worse, have the vent leak.
What’s the best way to reliably seal a vent base to the sheet metal? Is there a preference of roof vents (plastic, aluminum, steel) for an application like this? Any ideas on cutting the hole that would be useful information for me? Would a small turbine vent be easier/harder to install? I’d really appreciate any advice from readers (especially any who have had similar situations). Thanks in advance!
Replies
I just ran a ridge vent on mine.
when you corrugated I'm seeing the wavy ribs..yes?
There is a gasket used for this in combination with the wavy wood strips. A wood filler that conforms to the corrugations and a generous amount of silicone or Black jack (roof tar in a tube)..use gasket head roof screws to squeez the sandwich together..this will do the Downslope edge.
For the sides I would sillycone to the closest high spot and screw..the edges will drain in the low channel.
tuck the top as you described.
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