Is laminate flooring a good choice for New Brunswick homes with high humidity?

Laminate flooring can work well in New Brunswick homes, but only if you choose the right product and take precautions for our Maritime humidity swings. Standard laminate uses a high-density fibreboard (HDF) core that absorbs moisture, so you need to be strategic about product selection and environmental control to avoid problems.

The core issue with laminate in NB is our dramatic seasonal humidity cycle. From October through April, forced-air heating drops indoor humidity to 20-30% RH, causing the HDF core to dry and potentially shrink at the joints. Then from June through September, Maritime humidity can push indoor levels above 65%, causing the core to swell. This 30-50% annual swing is more extreme than what homeowners in inland provinces experience, and standard laminate is more vulnerable to these cycles than engineered hardwood or luxury vinyl plank.

That said, modern water-resistant and waterproof laminate products have improved dramatically. Look for laminate with water-resistant HDF cores or newer waterproof rigid polymer cores — these handle NB's humidity far better than traditional laminate from even five years ago. Products rated as water-resistant typically feature wax-impregnated HDF cores and sealed click-lock joints that resist surface moisture for 24-72 hours. True waterproof laminate uses a plastic composite core similar to LVP and handles moisture even better, though it costs more at $4-$6/sq ft for materials versus $2-$4/sq ft for standard laminate.

For NB homes specifically, laminate performs best in main-floor living areas, bedrooms, and hallways where you can control the indoor environment. It is not ideal for bathrooms, laundry rooms, or basements where standing water or persistent moisture is likely — even water-resistant laminate has limits. In those spaces, luxury vinyl plank (LVP) at $3-$7/sq ft is a safer investment.

To make laminate work in an NB home, you need to manage your indoor humidity year-round. Run a humidifier during heating season to keep RH above 35%, and use a dehumidifier or air conditioning in summer to keep it below 55%. Leave 8-12mm expansion gaps around all walls and fixed objects — this is critical in NB where summer expansion is significant. Use a quality underlayment with an integrated vapour barrier, especially on main floors over crawl spaces where ground moisture migrates upward.

Laminate remains one of the most budget-friendly flooring options in NB at $4-$8/sq ft fully installed, making it attractive for homeowners who want a wood-look floor without hardwood pricing. A typical 800 sq ft installation runs $3,200-$6,400 total. Just be honest with yourself about whether you will maintain humidity control — if you will not run a humidifier in winter and a dehumidifier in summer, consider LVP instead, which handles NB's moisture swings without any environmental management.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• 3Tone Construction Ltd
• Gionetterenovations
• Forever Epoxy Inc
• Arctic Fox Construction Inc.
• The Garbage Guys Ltd