10x16 eave vent intake - buy or make
I'm looking at eave vent options for aesthetics and air flow. In order to get flow and keep some symmetry with existing vent holes in the wood eaves, I am looking at doubling the number of inlets and increasing the size of each inlet to 10"x16". The total net free area for intake=1240in2 and currently only have a total of eight 8x16 vent intakes.
I can not find a seller of 10"x16" intakes, so I think I could find grating to mount to homemade frame or find a stiff mesh that could be attached to a 10x16 frame. Anyone know of somewhere that sells 10x16 vents or have experience trying to make their own vent?
I am looking for tips on where to find grating, or what mesh size is best to keep out squirrels but keep flow, or how to make a metal frame to mount to the eave. A wood frame would stick-out a bit from the eave, but would be easier to make. I don't know how difficult it would be to make a more streamline metal frame. Thanks for any help.