
20/12 pitch louver vent will not fit these actual measures.
Framers are human and occasionally miss their mark or cut the rafters on the wrong side of the line.
This is why we request the actual width and height measures.
Buy these
Triangle louvered crawlspace exhaust vents
The actual roof pitch is a 20.4 pitch.
So if the order had been for a 20:12 pitch, it would not have fit.

The standard front flange is a 1 1/2 inch coverage.
Custom louver vents means each part of the vent can be custom to fit the project.
This vent was ringed with a 2 inch nail fin.

This depth is 2 full inches.
Also made from Alside G8 Glacier White for a forever finish.

Aluminum Screen and wire mesh was added to the back for the best critter control whether 4 legged or 6 legged.
Buy these 40 X 34 X 2 Triangle vents for the most durable 40 x 34 louvered crawlspace exhaust vents with a front flange and a 2 inch depth
The top angles of the triangular vent means nothing. Please skip this measure and go straight to the base length and center height. This is all you need. 40x34x2trlvffss
Can also be combined with a power fan by inserting this vent in the wall and strap the power fan fan to the loft rafters.
Malden Massachusettes 02148 is known for it's beautiful historical homes and high pitch roofs.
So if the order had been for a 20:12 pitch, it would not have fit.

The standard front flange is a 1 1/2 inch coverage.
Custom louver vents means each part of the vent can be custom to fit the project.
This vent was ringed with a 2 inch nail fin.

This depth is 2 full inches.
Also made from Alside G8 Glacier White for a forever finish.

Aluminum Screen and wire mesh was added to the back for the best critter control whether 4 legged or 6 legged.
Reinforced Triangle Attic Vent
Vent Size | receive | receive | apx | |||
if you choose... | order width | order height | vent width | vent height | net free | |
opening size | 40 | 34 | 39.5 | 33.5 | 295 | |
tip to tip of vent | 40 | 34 | 40 | 34 | 304 | |
tip to tip including flange | 40 | 34 | 37 | 31 | 253 |
Depth: 2 inch vent wall
Color Options: All Aluminum Trim Coil Colors
Nail Fin: Front Flange
Fabricated With: Complete Aluminum Metal
Functional Options: Aluminum, Black vinyl screening on back, Metal backing, Aluminum screening on back
Can also be combined with a power fan by inserting this vent in the wall and strap the power fan fan to the loft rafters.
Malden Massachusettes 02148 is known for it's beautiful historical homes and high pitch roofs.
What else?
901.281.2887 contactus@onyxxteriors.com