I'm installing a dryer on the second floor and the only choice I have is to run the vent through the roof. My concern is that by squeezing the 4" rigid aluminum vent into the wall, I'm coming awfully close to wood and PVC. I'm wondering just how close I can come to either of these substances before it becomes a fire hazard. Or is the duct just not hot enough to be an issue? Any ideas on code for this? Thanks.
- posted
19 years ago