Hope someone can advise me if there is a recognized method for installing a Whirlybird turbine roof vent into an existing (unvented) standing seam metal roof. The existing roof is installed on T1-11 ply over exposed rafters (a common Caribbean roofing practise). The desire is to install one turbine vent to act as an exhaust for the hot air that builds up at the top of the exposed rafters roof space (the ceiling). At present there is no ventilation, so the ceiling fans just blow the hot air from under the ceiling down into the lower room spaces :roll: . Is there a method to install a fixture like the turbine vent, that won’t interfere with the natural expansion and contraction of the metal roof?
Cut your hole, create a nice gasket on the bottom of the vent flange, & screw down the flange all around real good. If its a copper roof, get a copper vent & solder it down. Also look at box vents & static vents. Im pretty sure you can google them.
@ rickengie Yes, will make sure to adjust it so it’s level.
@ tinerr666 If it turns out as neat as the copper roof pix I’ll be happy! I’ll post a photo if (when) it gets done, but it won’t be for a month or two I’m afraid.
I reckon the base plate/flange should sit between the two seams, but it might be that if there’s enough base plate to bend over the seam, it could then be bolted through in four corners. A solar water heater on the roof was installed in this way, by bolting the frame to the seams, rather than drilling into the roof covering itself.