Here are two free graphics showing a dryer roof vent option and a common wall vent option.
Again, Thanks Randy!!
Thanks again, Randy.
I dont think i’ve ever seen an insulated dryer vent pipe. what is the purpose of that?
edit: acoustic isolation?
Warm moist air out of the dryer will condense inside the pipe in a cold attic and run back down to the dryer. The insulation prevents condensation from forming inside the pipe.