An electricain is a good option; However since the fans are already exisitng agood Handyman is probably your best bet. They normally have a jack of all trades mentality so minor HVAC and electrical wo ... read more
I don't recall where I saw it, but there is a product (similar to door & window flash, but wider) that goes on the plywood, along with a primer. You would need to start the application down at the ... read more