Lightning rods for metal roofs?
We recently installed a galvalume roof for a client. They asked how the roof was grounded. It's not, as far as I know, other than through the structure. Do others here ground their metal roofs or is it a gimmick?
Posted Jun 30, 2011 9:35 AM ET
Other Questions in General questions
Will positive pressure work to vent an attic (i.e., blowing air in)? Attics exhaust fans are a bad idea. But what about blowing air in (using positive pressure).