What's the best tile for a shower in New Brunswick where humidity is high in summer?

Porcelain tile is your best choice for New Brunswick shower installations, offering superior moisture resistance and durability that handles our humid summers and freeze-thaw cycles year-round.

Porcelain vs. Ceramic Performance
Porcelain tile has a water absorption rate below 0.5%, making it virtually waterproof compared to ceramic tile's 3-7% absorption rate. In New Brunswick's climate — where we see 80%+ humidity in summer followed by harsh winters — this low absorption prevents tile cracking from freeze-thaw expansion. Expect to pay $3-12 per square foot for quality porcelain compared to $2-8 for ceramic, but the longevity justifies the investment.

Size and Installation Considerations
Larger format tiles (12"x24" or bigger) mean fewer grout lines, reducing potential water penetration points. However, New Brunswick's older homes — especially those Victorian and post-war bungalows common in Moncton, Fredericton, and Saint John — often have settling and movement that can crack large tiles. For homes built before 1980, consider 6"x6" or 8"x8" tiles that handle minor movement better.

Essential Waterproofing Requirements
Under the National Building Code 2020 (effective May 1, 2025 for new applications), shower areas require a waterproof membrane behind the tile. RedGard, Schluter-Kerdi, or similar systems are mandatory — not just the old plastic sheeting. This is especially critical in New Brunswick where our clay soils and high water tables create foundation moisture issues that can compromise tile installations from behind.

Grout and Maintenance
Use epoxy grout or high-quality urethane grout in shower areas — standard cement grout absorbs moisture and fails quickly in our climate. Seal natural stone annually, though porcelain doesn't require sealing. In coastal areas like Saint John or Shediac, salt air can accelerate grout deterioration, making quality grout selection even more important.

Professional Installation Recommended
While homeowners can handle simple tile work, shower installations require plumbing rough-in by a licensed plumber (TIS licence required), proper waterproofing, and often electrical work for ventilation fans. A licensed electrical contractor must handle any new electrical circuits (NB Power wiring permit: 1-800-615-0522). Poor waterproofing in showers leads to expensive structural repairs — this isn't a DIY learning project.

Next Steps
Visit a local tile supplier to see porcelain options in person and get material estimates. Budget $15-35 per square foot installed for quality porcelain tile work, including proper waterproofing. Find experienced tile installers in our New Brunswick contractor directory who understand local building requirements and climate challenges.

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