Hi there. I’m having a house built right now and I have a question about the best (not just the adequate or min code) way to properly vent a standard roof on a single family home.
I live in Northern Canada. Temps can get below -40 and are often at -20 for prolonged periods. We do however get the occasional thaw cycle for a few days to a week where temps can shoot into the positive range.
The house I’m in right now actually has “attic rain”, frost building up in the attic space and thawing back. The roof looks to have just the regular old plastic square roof vents, no turbine or turbo. Front and back are perforated soffats, sides are solid. Minimum code appears to be met from what I read.
So, the house I’m having built has the same kind of set up. Plastic roof vents at the bottom and top of roof. Passive airflow, no whirlybirds etc.
These will inevitably be covered with snow and or ice, and I see a mix of this with turbos/turbines etc throughout the neighborhood.
So I guess my long winder question is: Regardless of cost, aesthetics or anything else, what is the most effective roof vent combination to exchange air in a very cold climate with lots of snow?
I’m researching myself but getting mixed reviews on it, so looking for help from this community, thanks!