Just got a call from a customer, he was looking for some info on sizing attic fans. I really haven't sized an attic fan before as we stick to mostly commercial stuff.
he has two areas hes looking at, they are both connected in the attic.
Area #1. 30x63' room, 4pitch roof, the room has a pool in it, so moisture in the attic is a large problem.
Area #2. 24x36' room, 8 pitch roof.
he was thinking of two fans in area #1 and one fan in area #2. How should I go about sizing this? how many air changes per hour?