Is quartz affected by New Brunswick humidity?

Quartz countertops handle New Brunswick's humidity extremely well — it's one of the top reasons quartz has become the most popular countertop choice in NB homes.

Unlike natural stone such as granite or marble, quartz is an engineered product made from roughly 90-95% crushed quartz bound with polymer resins. That resin binder makes the surface completely non-porous, meaning moisture cannot penetrate the material itself. During NB's humid summers — when Maritime air pushes indoor humidity levels high enough to cause mold behind cabinets and under sinks — quartz won't absorb that moisture, won't stain from condensation, and won't require seasonal sealing the way granite does.

The more interesting NB climate concern with quartz is actually the opposite season. Our forced-air heating systems drop indoor humidity to 15-25% in winter, which causes solid wood to shrink and crack and thermofoil to delaminate. Quartz is largely unaffected by this dryness as well — the engineered composition doesn't expand and contract the way natural materials do. This stability across NB's dramatic seasonal swings is a genuine practical advantage, not just a marketing claim.

Where quartz does have a vulnerability worth knowing about is heat. The resin binders can discolour or crack from direct contact with hot pots and pans — always use trivets. This isn't a humidity issue, but it's the trade-off you accept for quartz's moisture resistance. Granite, by comparison, handles heat better but requires annual sealing to stay protected in humid conditions.

A few practical tips for NB homeowners choosing quartz:

Most countertop fabricators serving NB are based in Moncton, Fredericton, and Saint John, with delivery surcharges possible if you're in a more rural area. Plan for 3-6 week lead times from templating to installation — and templating should only happen after your cabinets are fully installed and levelled. Measuring too early is one of the most common (and costly) mistakes in kitchen renovations.

Quartz installation is firmly in the "hire a professional" category. Slabs are heavy, seams require precise alignment, and a crack during handling means starting over with a new slab order. A qualified countertop fabricator will template, cut, and install — this isn't a DIY project.

If you're planning a kitchen renovation and want to explore quartz options with a local contractor, New Brunswick Kitchens can match you with a kitchen renovator in your area for a free estimate.