But if you re just after that snappy rally car look install the scoop by itself without cutting a hole in the roof.
Gc8 roof vent installation.
Opening in front is about 13 wide.
Scoop measures approx 19 x 17 and 3 5 tall.
Wide mouth helps to feed air to your roof vent but a small air escape in the back of the scoop reduces noise and lift when roof vent is closed.
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Broan 355bk gable mount attic ventilator at amazon.
Ventilation openings shall have a least dimension of 1 16 inch 1 6 mm minimum and 1 4 inch 6 4 mm maximum.
Complet roof or roof vent.
Allow space for the edge of the vent opening where it will rest on the roof.
Beneath the roof eaves in the soffit is the standard place to install intake vents because it s the lowest spot in the roof.
Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters shall have cross ventilation for each separate space by ventilating openings protected against the entrance of rain or snow.
The old still reliable method of venting the soffit.
You should be able to see the attic interior when done.
Drill starter holes if needed then scew down the vent with the fasteners in the installation kit.
Mark the outline of the roof cuts that will be needed then use a skill saw to cut the outlined space.
Apply a layer of sealant to the edges of the hole then place the vent into position.