Should I use cement board or drywall in my shower?

For shower applications, cement board is the clear winner over standard drywall. Cement board provides superior moisture resistance and creates a stable, code-compliant substrate for tile installation that will protect your Ottawa home's structure for decades.

Moisture Protection is Critical
Standard drywall, even the green moisture-resistant variety, simply cannot handle the constant humidity and occasional water exposure that occurs in shower areas. In Ottawa's climate, where we experience significant temperature swings and humidity variations throughout the year, using drywall in showers often leads to mold growth, structural damage, and costly repairs within 5-10 years. Cement board, on the other hand, won't deteriorate when wet and provides an excellent vapor barrier when properly sealed.

Code Compliance and Installation
The Ontario Building Code requires appropriate backing materials for tile in wet areas, and cement board meets these requirements when installed correctly. Popular brands like Hardiebacker or Durock typically cost $15-25 per sheet compared to $12-18 for moisture-resistant drywall - a small price difference considering the long-term protection. The installation process involves securing the boards with appropriate screws, sealing joints with mesh tape and thin-set mortar, and applying a waterproof membrane before tiling.

Professional Installation Considerations
While cement board installation might seem straightforward, proper waterproofing details around shower valves, corners, and the tub/shower interface are critical. Many Ottawa homeowners attempt DIY installation but miss crucial waterproofing steps, leading to expensive water damage later. The cutting and handling of cement board also requires proper dust protection and tools, as the material creates silica dust when cut.

When to Call a Professional
If your shower renovation involves moving plumbing, electrical work for new fixtures, or structural modifications, you'll need permits from the City of Ottawa and licensed trades. Even for a straightforward re-tile job, having a professional ensure proper waterproofing can save thousands in potential water damage repairs.

For a comprehensive shower renovation with proper cement board installation and waterproofing, contact Justyn Rook Contracting for a free estimate. We ensure all work meets Ontario Building Code requirements and provide the long-term protection your Ottawa home deserves.