Gust-Resistant Wall Hood with Gasketed Damper
The wall hood with a gasketed damper that shuts out wind and cold, available as an intake or an exhaust.
AirGreen codeAG-VS-00118
514 316-2973 · sales@airgreen.ca
Quick facts
The gust-resistant wall hood with gasketed damper terminates a ventilation duct on the exterior wall. Its damper closes against a seal, and its gust-resistant design is meant to keep it from flapping in the wind. It is offered in an Exhaust version for venting and an Intake version for fresh air, in four finishes.
Less cold and fewer drafts through the ducts
A hood whose damper stays partly open or bangs in the wind lets cold air into the duct, all the way to the bathroom or the air exchanger. With a gasketed damper, the outlet stays closed when the unit is off, which matters in the depths of a Québec winter.
Choosing your hood in three steps
- Size: 4, 5 or 6 in to match the round duct diameter, or 3-1/4 × 10 in for a rectangular duct.
- Function: Exhaust for venting (bathroom, stale air), Intake for an air exchanger’s fresh air.
- Finish: galvanized, white, brown or black, to suit the siding. Not every combination is offered: see the list under the sizes.
Good installation practices
For an air exchanger, keep the distance between the intake and the exhaust required by the manufacturer and the code, and place the intake away from sources of contaminants. Slope the exhaust duct toward the outside, insulate it if it passes through a cold space and seal around the hood to the siding with an exterior sealant. Check that the damper moves freely and keep it clear of snow.
Installed by AirGreen across Greater Montréal
We drill, install and seal wall hoods as part of our air exchanger and fan installations in Montréal, Laval, Longueuil, the South Shore and the North Shore. RBQ licence 5645-9605-01, subcategory 15.8 Ventilation. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the size, function, finish and quantity.
Your ducts’ door to the outdoors
Every duct that goes through the wall ends at a hood: a damper that closes well and does not flap in the wind keeps cold and drafts outside.
- Fresh-air intake and stale-air exhaust of an air exchanger (HRV)
- Exhaust from a bathroom fan or an in-line fan
- Outlet for a 3-1/4 × 10 in rectangular duct, as found on many range hoods
- Replacing an old hood whose damper no longer closes
18 sizes, one page
Each size has its own AirGreen code. Tap a row to select it.
| Dimensions | Function | Colour | AirGreen code |
|---|---|---|---|
| 4 in | Exhaust | Galvanized | AG-VS-00101 |
| 4 in | Intake | Galvanized | AG-VS-00102 |
| 4 in | Exhaust | White | AG-VS-00103 |
| 4 in | Intake | White | AG-VS-00104 |
| 4 in | Intake | Brown | AG-VS-00105 |
| 4 in | Intake | Black | AG-VS-00106 |
| 5 in | Exhaust | Galvanized | AG-VS-00107 |
| 5 in | Intake | Galvanized | AG-VS-00108 |
| 5 in | Exhaust | White | AG-VS-00109 |
| 5 in | Exhaust | Brown | AG-VS-00110 |
| 6 in | Exhaust | Galvanized | AG-VS-00111 |
| 6 in | Intake | Galvanized | AG-VS-00112 |
| 6 in | Exhaust | White | AG-VS-00113 |
| 6 in | Intake | White | AG-VS-00114 |
| 6 in | Intake | Black | AG-VS-00115 |
| 3-1/4 × 10 in | Exhaust | Galvanized | AG-VS-00116 |
| 3-1/4 × 10 in | Exhaust | White | AG-VS-00117 |
| 3-1/4 × 10 in | Exhaust | Black | AG-VS-00118 |
Available combinations — 4 in: exhaust galvanized or white, intake galvanized, white, brown or black. 5 in: exhaust galvanized, white or brown, intake galvanized. 6 in: exhaust galvanized or white, intake galvanized, white or black. 3-1/4 × 10 in: exhaust galvanized, white or black.
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Pick the size from the duct: 4, 5 or 6 in round, or 3-1/4 × 10 in rectangular.
- Order the function that matches the air direction: Exhaust for venting out, Intake for fresh air.
- For an air exchanger, keep the intake-to-exhaust distance required by the unit maker and the code.
- Seal the hood to the siding with exterior sealant and keep the damper clear of snow and debris.
You may also need
2-in-1 Wall Vent (Air Intake and Exhaust)
Galvanized Round Backdraft Damper
Galvanized Round Pipe – 60 in Length
Adjustable Galvanized Round 90° Elbow
Fantech FG Series Inline FanVents and dampersSee all
Frequently asked questions
Intake or exhaust: which one?
The one that matches the air direction in the duct. Exhaust for venting out (bathroom, stale air from an air exchanger), Intake for the fresh air entering the exchanger.
What does “gasketed damper” mean?
The damper closes on a seal. While the equipment is off, less cold air gets in through the duct.
Do I also need a backdraft damper?
The hood’s damper is enough in many cases. On a very wind-exposed wall, an in-line backdraft damper adds a second barrier.
Can you install it?
Yes. We core the wall, install the hood and seal it on our air exchanger and fan installations across Greater Montréal.
Wall outlets that really close
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.