Well no and no and they don't come with installation instructions do they? That piece of plywood sits on top of the hole. So what's the worst that can happen? It will keep the rats out. It was this or an oven grate. At least this is painted. What gets me is that they built a nice bathroom addition and dropped the ball at the end.mark handler said:Is that PT wood? Does that drain?Not installed per Manuftures instructions
Fixed-blade ventilating product designed for vertical wall installation.
http://www.cjmetals.com/06std-louvers.pdf
pwood said:you just can't fix STUPID!
Agree with Mark.!mark handler said: