Waterproofing Shower Walls with Trusscore Wall&CeilingBoard

Trusscore Wall&CeilingBoard and Bathroom Applications 

While drywall proves its worth in living rooms, dining rooms, and bedrooms, it falls short in high-moisture areas like bathrooms. After all, drywall sheets are made from paper cladding and gypsum, which are highly absorbent materials. Exposed to the constant overspray from showers, splashing from bathtubs, or condensation from hot running water, it's just a matter of time before drywall exhibits unmistakable signs of water damage — staining, bubbling, sagging, or bulging. Left unattended, it will inevitably grow mold or mildew, requiring repair or complete replacement. 

To ward off bathroom water damage, say “goodbye” to drywall and “hello” to Trusscore Wall&CeilingBoard. Made from PVC, pre-finished Trusscore panels are tailor-made for residential bathrooms because they’re 100% moisture and water resistant. Not only are they a breeze to clean with household cleaners, but they’re also easy to install with a watertight seal.  

And if you’re installing Trusscore Wall&CeilingBoard in your bathroom, you can skip out on buying extra materials like one-piece plastic liners or using tile and grout by extending the panels into your shower, too. 

How to Install Trusscore Wall&CeilingBoard in a Shower Enclosure

Waterproofing shower walls with Trusscore Wall&CeilingBoard requires a slightly different approach than a traditional Trusscore installation:

1. Start by installing a backer material, such as cement board on top of the substrate that will be behind the shower walls and ceiling.
   Next, apply a liquid waterproof membrane on top of the cement board. This will act as the water and vapor barrier to protect the materials behind the wall and ceiling. Allow adequate time for the waterproof membrane to dry.

2. Install Trusscore Wall&CeilingBoard panels directly on top of the cement board. Follow our Trusscore Wall&CeilingBoard Installation Guide for complete steps on how to install panels to cover the shower ceiling and walls.

3. It is highly recommended to install the Wall&CeilingBoard panels on the walls in a vertical orientation to allow for the best possible drainage.
   Start installing panels from the inside corners of the shower and work outwards to make installing the last panels easier.

4. Before inserting any panels into trim, run a small bead of silicone approximately the thickness of a string of yarn, along the inside of the front-facing edge of the J Trim extending the entire length of the panel and along each panel end.

5. When installing subsequent panels, run a small bead of silicone, again, about the thickness of a string of yarn, along the tongue of the panel and insert the tongue into the groove of the previous panel. Press the panels firmly together to ensure a proper connection and wipe away any excess silicone.

6. After all ceiling or wall panels have been installed, run a small bead of silicone along the seam of the front facing edge of the J Trim where it meets the panels, along any corners, and other surfaces like floors.

And that’s it! You’re ready to finish the rest of your bathroom renovation — your shower walls and ceiling are covered.