List Of Bathroom Vapor Barrier Exterior Wall Trend 2023, Where you install a vapour barrier in your bathroom will be based primarily on the climate in the area where you are live. If the tub shares this exterior wall i would put vapor barrier behind it (if you can) as the plastic tub surround will not give you a vapor barrier (i don't think). Air sealing and a good exhaust fan as mentioned are important.
If You Live In A Hot And Humid Location, The Vapour Barrier Must Be Installed On The Outside Wall.
Where you install a vapour barrier in your bathroom will be based primarily on the climate in the area where you are live. One sheet above tub where the bottom of the sheet extends over the bathtub lip, and the second sheet runs from the floor up a few inches above the bathtub lip. Vapor retarders are there to slow the diffusion of moisture, so the building inspector is off base, argues senior editor martin holladay.
So I Keep Seeing Conflicting Answers On This.
That is the job of an air barrier. Whether or not you need a vapor retarder hinges on three main factors your climate, your home and the location of the wall you're insulating. I have attached a file with hand drawings that illustrate three options for installing the plastic vapor barrier.
Option 1 Has Two Sheets Of Poly Installed On Exterior Wall;
Any condensation on a properly installed continuous plastic vapor barrier will eventually be reabsorbed into the ambient air of the home’s interior and not produce any damage to the wall components. As long as you do not have a vapor barrier on the exterior all is good. A vapor barrier against the concrete surface is generally recommended before wood framing or flooring materials are installed.
A Continuous Plastic Vapor Barrier Prevents Condensation From Forming On The Internal Surfaces Of The Exterior Wall.
A vapor retarder is a material used to prevent water vapor from diffusing into the wall, ceiling or floor during the cold winter. Vapor barriers are usually best installed on the side of the wall that experiences the hotter temperature and moister conditions: A vapor barrier should therefore be installed on the interior and exterior walls, making it a critical method to remedy the vapor problem that always manifests in the shower.
Modern House Wraps Are Designed To Allow Moisture To Pass While Blocking Water Under The Siding.
If the tub shares this exterior wall i would put vapor barrier behind it (if you can) as the plastic tub surround will not give you a vapor barrier (i don't think). The polly is also a vapor barrier. Very hot and humid climates may benefit from an exterior vapor barrier that keeps outside humidity from penetrating into walls.
I know that it is necessary to have a continuous vapor barrier in basement exterior walls ( inside the walls, after the insulation). A vapor barrier is an essential part of a building, but it's often installed incorrectly or omitted entirely. So i keep seeing conflicting answers on this.
Bathroom Project Part 4.
It's usually a thin layer of plastic that sits between the drywall and the studs. If you live in a hot and humid location, the vapour barrier must be installed on the outside wall. To accommodate that, you could cut some slashes in the kraft paper, then put up the polly. You don't need to put a vapor barrier in the ceiling of the bathroom. Where you install a vapour barrier in your bathroom will be based primarily on the climate in the area where you are live. Thoughts on whether or not I should put insulation and/or
