Our garage roof has no vents (the shingles curl up pretty bad periodically)!
Should I install soffit and roof vents? If yes, how many? Which side
should a roof vent be? north or south? Is one roof vent enough?
Our garage roof has no vents (the shingles curl up pretty bad
Heat can seriously damage your roofing.
If you have no ceiling, you could install a turbine vent at peak of roof,
using formula for area to be cooled, to size the turbine. Then leave main
door open a few inches for incoming air. If your garage has a sheetrock
ceiling, then soffit vents plus passive wind turbine, or electric
thermostatic fan might help cool the area. Insulation between rafters could
also be employed, if not already there. This will help keep the roof cooler,
and help the hot air bybass the decking under the roof..
I already bought three soffit vents, and one roof vent (not a ridge vent).
Should I take back the roof vent and buy a ridge vent? Should I just pick
up another roof vent? I don't really want to hack up the entire length of
the ridge of the roof for a ridge vent.
You need vent(s) at the highest part of the roof. There are several
options. Then you need vents lower to let air in. In this case they can be
at the soffits, or even better lower above any snow level. I suggest
totally passive venting (no electric or wind powered fans).
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