How to Install Vinyl Gable Vents

Vinyl gable vents are perfect for attic ventilation, which is an important factor for a healthy home. When left unattended, stale and hot air collects in the attic, and this air is then churned around and channeled back to the house, resulting in increased energy costs. The attic also collects moisture in wet and cold weather, and this, in turn, can cause rot, mold and mildew, making for a dangerous living arrangement.

The best way to tackle these problems is by installing vinyl gable attic vents. These are designed to expel stale air during summer, and prevent rain, snow and wind from entering the house during winter, thereby reducing both cooling and heating costs. Given below is a step-by-step guide for installing vinyl gable vents in your attic

Step 1 – Get the Right Safety Gear

When working with vinyl gable vents in the attic it is best to be equipped with all the required safety gear (gloves, goggles, dust mask) beforehand. Also, keep a first aid kit handy. In fact, you could also ask a family member or friend to help out.

Step 2 - Remove the Existing Insulation

The first thing you need to do before actually installing the vinyl gable vent is prepare the area where the install will take place. Make sure the space where the installation will take place is free of any insulation. In case it isn’t, remove the insulation with the help of a utility knife.

Step 3 – Install the Vent Frame

Use the lumber boards to construct a 2 by 4 square frame. This frame should be placed between the studs and the gable ends. Secure the frame with screws or nails. When making the frame, factor in a 1/8-inch gap all around it. When done, go ahead and drill 3/8 inch holes along the vent corners. Keep in mind these holes will penetrate to the exterior house wall.

Step 4 – Make an Opening

Now approach the drilled holes from the outside. Using a pencil or a chalk connect all the holes and mark the outline for the vent opening. Saw through the marking and cut out the opening.  

Step 5 – Check Fittings   

Once you’ve got the area cut out, check if the vent fits in snuggly. If it is plumb go ahead and sketch out an outline for the flange. Now, using the appropriate circular saw (this will depend on the type of siding), saw through the siding. As you saw, remove any bits of remaining siding from the workspace. Once you are done, it’s time to check the fitting again. Pick the vent and place it in the opening. You need to ensure that the flange is placed flat against the sheathing.

Step 6 – Mount the Vent

The next step is to add flashing material around the opening. Flashing material helps keep water and snow out. Once the flashing is in place, install the vent into place. Once it’s fit in correctly, secure the vent using a set of screws.