Clothes dryer vent to outside — material of construction
I’m trying to find a better way to get the vent through the wall in a brick veneer home—new construction.
The standard cheap thin wall vent from the big-box store ends up somewhat squashed during the brick installation, so that any future replacement is difficult. Also, sealing any future replacement to the water barrier behind the brick is not possible. I suppose that when you had to replace the flapper portion only you could cut it at the brick line, but then you have an odd shape to match up to.
So, in a haste to get the brick in, I put in a piece of 4″ PVC (4.5″ OD) thinking I could tie the vent hose to this. Its an electric dryer, so I decided that if the clothes could get that hot, then so could the PVC. I checked with several code inspectors who don’t like it but aren’t sure if its disallowed by code. Note that I put the PVC pipe through a polymer roof vent attached to the wall so I could swap out the PVC if it were deemed unfit, and still maintain my water barrier.
So, my question—-does the PVC meet code?
Possible remedies–put the cheap thin wall metal device through the ID of the PVC (would that meet code?), or replace the PVC with a piece of thin wall stainless pipe.
Would a plastic flapper outside meet code? The metal ones are very noisy and flap in high winds.
On a related issue, I used 3″ PVC (3.5″ OD) for bath fan vents through the side wall. The only problem here is finding metal downspouts/bug screens on the outside to match the size. Any recommendations here other than custom sheet metal? Note that these pipes were taped to the water barrier to maintain seal.