Plastic Moisture Barrier For Shower

Use a minimal amount of staples to secure the vapor barrier to the walls studs.

Plastic moisture barrier for shower. Install plastic sheeting as a vapor barrier behind concrete underlayment. Placing a vapor barrier around the shower wall will ensure a long lasting installation but only if installed properly. Be careful when installing the barrier because its improper use might cause additional moisture problems. It locks any moisture behind it and the moisture can t dry if you want to waterproof the wall meehan recommends the use of a liquid applied membrane such as laticrete hydro ban or mapei mapelastic aquadefense on top of the backerboard.

Every shower needs a moisture barrier whether that is a 4 mil sheet of plastic behind cement board or a waterproofing membrane bonded to the surface like redgard for example. Use a polyethylene plastic which is specifically designed for residential installations of vapor barriers on walls. If you choose to use a sheet of plastic you ll want to tape any seams. But you don t want both for a normal residential shower.

Moisture barriers can be made of polyethylene or a membrane that is rolled directly onto the drywall. Liquid waterproofing is an outstanding redundancy barrier to the tile installation and allows you to skip the plastic sheeting behind your substrate. When working with smaller plastic sheeting pieces that overlap ensure that the upper layers overlap the lower layers in a. Use appropriate tape to adhere two pieces of vapor barrier and edges to avoid moisture entry to the back walls.

No matter what they are made of without them your shower is subject to moisture damage. It s usually a thin layer of plastic that sits between the drywall and the studs. For a steam shower he prefers a sheet membrane from kerdi or noble.