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Last modified: 2020-05-06 | Approximate reading time 3 mins
When building a new home, air barriers are not always part of the equation. However, air barriers are crucial structures that assist in aiding with energy efficiency as well as maintaining a comfortable and cozy home environment.
Unlike the vapour barrier, which aims to prevent cold surfaces from coming into contact with moisture within the same structure and to limit the diffusion of steam inside of it, the objective of the air barrier is quite different. Rather, it aims to divide the air-conditioned spaces of non-air-conditioned spaces in order to avoid any unwanted heat leakage.
If you're looking to optimize the energy efficiency of your home or have noticed the presence of heat leaks, it's time to take action and install an air barrier in your walls.
Concerning more specifically the purchase of an air barrier, know that it is available in many materials including:
The installation process for firm materials is slightly more complicated but will follow the same principals as the wrapping. For the installation of a plastic air barrier wrapping, you'll need the following elements to complete your project:
These materials are chosen because of their air impermeability, their ability to withstand pressure differences and their high durability.
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Choosing an area of your home to add an air barrier will depend on where air might be escaping. Attics and crawlspaces are prime spots for leakage, but the seams between floors and walls is another.
At first glance, it is specified that it is possible to install an air cover on the outside as well as on the inside. The most important thing about the installation process is how the joints are made. It is essential that the joints are sealed at the junctions.
source: Flickr, Justin Maple
To install plastic air barrier wrapping, start at the corner of the room or surface you are working on. Make sure that the material you choose for your air barrier has no unnecessary cuts in it, as these will obviously allow air to escape. The only time this material should be cut is to make way for doors or windows, pipes, electrical outlets or anything else jutting out of the wall.
Make sure that your air barrier begins at the sill plate and runs along the wall as high as it can possibly go. If the barrier cannot reach the top plate, you must apply an extra layer. When installing the second layer, make sure that it is properly shingled to allow for water to run off instead of into the walls. If this step is done incorrectly, you will risk trapping water beneath the air barrier material. Make sure to have a minimum of a 6 -inch overlap between layers.
As you move along the wall, fasten the air barrier material in place. Only use enough fasteners, nails or staples to hold the house wrapping tight, as you don’t want to put any unnecessary holes into the surface. Further, make sure that if you are cutting a section of wrapping out to accommodate doors, windows or outlets, that you go back over these sections with vertical pieces of wrapping.
Using your seam tape, tape any openings closed and pay special attention to the footing, as the space between the walls and floors is one of the leakiest areas of the home. Make sure that this installation process is completed carefully! If you're unsure about the intricacies of this project, remember you can always consult a professional to help you get the job done. Soon enough, you'll have an airtight and comfortable home.
RenoQuotes.com can help you get quotes for. By submitting your air barrier renovation to us, we’ll put you in contact with top-rated contractors. Fill in the form on the homepage (it only takes a few minutes), and you will get estimates from trusted professionals.
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