I redid the roof last year, an I installed a tin flashing with the
round rubber seal kind of thing.. in anticipation of bringing the vent
up through the roof and through the flashing/rubber seal... Are you
saying that is not a good idea?
If I understand you correctly, that is a bad idea. Rain will come in
that way. Of course this is OK for a plumbing vent, because all the
rainwater will do is run down the drain. If this is for a fan that
vents the moist air to the outside, then whatever amount of rainwater
that goes down the pipe stuck through the roof will start coming in
through your bathroom fan. That's the reason for for a roof cap, to
let the moist air out while preventing rain, snow, leaves, etc from
coming in through the vent.
Something like this is what you want:
The metal ducts from my bathroom fans go to within 6 inches of the
ridge vent, and then terminate, INSIDE the roof. Is that ok?
They're not exactly vertical, one leans forward and the other
backwards, both towards the ridge line of the house, so they are only
about 4 inches apart where they terminate.
Remove NOPSAM to email me. Please let
me know if you have posted also.
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