I am building in a snow area, but live in the low desert. My home in the low desert just has the ABS pipe sticking out of the metal roof jack and that is it. I'm thinking that if this house were in snow country the snow would come in between the jack and the ABS pipe. Are there special roof jacks for snow areas? Or do I just use a storm collar on the pipe? Or just don't worry about it because it isn't al lot of water which will come in?
Chuck
If you are talking about plumbing vents, the way I always did it in the Colorado mountains was to stub through the roof with cast Iron pipe. Leave enough comming down that you can secure it firmly either by letting it come through a wall plate or by straping it with metal strapping. Plastic pipe will get sheared off when the snow slides. You can do the inside plumbing with pvc/abs and transition to cast iron with a mission coupling. Also you'll want to use a lead flashing instead of the aluminum/neopreem flashings.
If that is really a concern you could always put a couple "snow birds" above the pipe. Unless you vent is near the eave IMO should not really be an issue.
How much snow are you talking about in an average winter?