Bathroom vents that goes into the attic is supposed to be connected to a
roof cap, but the ones in my attic are just placed under roof vents. Here
are some photos:
Is this an acceptable solution? I would think not, since moist air can
accumulate inside the attic and cause mold to grow.
Can this be corrected without having to walk onto the roof? If yes, then I
can try to fix it myself. If not, then I will hire someone to do it. What
type of contractor should I look for?
I assume they are fan vents not plumbing vents?
The one flex line looks like a fan vent for sure.
The consider is not 'ok' but it depends on where you live (yearly
If I didn't want to walk on the roof, one kinda ok way to fix these
would to place a 'mirrored' vent flashing on underside of the exsiitng
Cut away the wood, goop up the flashing & "glue it" to the roof felt.
Rig a "retainer means" to really hold it in place.
Fix the vent pipe / hose to the underside flashing and now you've got
a completely sealed path with very little volume to accumulate
Alternatively you poke a a hard vent tube up through the flashings &
connect old work to it in the attic.
Of course you'd be missing the vent caps....all the rain that falls on
the open tube with wind up running down the tube. :(
How long has the houe had these vents? What mold problems do the pictures
show? Why do you think these attic vents shouldn't be used like this? Is
there a local code requiring vent caps?
Looks as if you can easily go into the attic and stuff something around
the vent pipes to seal the pipes and the roof. Note that these roof vents
will no longer vent your attic space if you do this.
Whether you guys like the use of the attic vents does not strike me as
relevant. The question is whether this needs to be fixed. I saw nothing in
the photo suggestive of a problem. If it works in this case I say leave it
alone. If there are problems he may be able to vent from a soffit or eave.
Not a hard fix and mostly attic work.
I worked on a job about 15 years ago where we used some bailing wire to
string up metal duct tubing from the bathroom fan up under the roof
vents. This was a "fancy" house, too, with 10 foot walls and such.
According to the builder this was required by the inspector.
A few years ago when I redid my bathroom, I installed a proper
flap-valve vent on the roof, and my house isn't that fancy.
I don't like it, but it "probably" works.
Were it my house, I'd fix it right, with a proper flapper-vent.
However, that *would* require going on the roof. Another alternative
would be to rework the vent tubing and use a soffit vent. That would
possibly be more work and expense, and you'd still have to go up on a
ladder to install the vent in the soffit... personally I prefer the roof
vent myself. If you have asphalt shingles, an appropriately sized hole
saw (or a scroll saw) a hammer, some roofing nails, and a can of asphalt
roofing cement, it's really not an enormous job.
replace "roosters" with "cox" to reply.
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