Walk through any flooring showroom and you'll see 'waterproof' on a lot of labels. But not all waterproof claims mean the same thing — and choosing incorrectly for a bathroom, laundry room, or basement can mean a very expensive mistake. Here's what the terminology actually means.
Waterproof vs Water-Resistant: The Critical Difference
Water-resistant flooring can handle surface moisture for a limited time — spills that are wiped up quickly, minor splashing, damp mopping. It is not designed to handle standing water, flooding, or moisture vapor coming up through a concrete slab.
Truly waterproof flooring has a core that does not absorb or transmit water — period. If water gets under the floor (flooding, plumbing leak), a waterproof floor can often be dried out and reinstalled without damage. A water-resistant floor cannot.
What's Truly Waterproof
- 100% PVC luxury vinyl plank (LVP) — waterproof through the entire thickness
- Porcelain and ceramic tile — the tile itself is waterproof; note that grout is not unless sealed
- Sheet vinyl / linoleum — seamless installation means no joints for water to penetrate
What's Water-Resistant (Not Waterproof)
- Laminate with water-resistant coating — the core is still HDF; prolonged moisture causes swelling
- Engineered hardwood — the veneer can handle surface moisture, but the plywood core will eventually absorb and swell with prolonged exposure
- Some 'waterproof' laminate claims — read the fine print; most cover surface moisture only
Important: Even truly waterproof LVP has seams. If water gets under the floor, it can migrate under the click-lock joints and sit on the subfloor. In wet areas, seal the perimeter where the floor meets the wall for extra protection.
Room-by-Room Guide
- Bathroom: LVP or tile only — no laminate, no hardwood
- Laundry room: LVP or tile only — washing machine hoses fail, and when they do, water goes everywhere
- Basement: LVP strongly preferred; carpet with moisture-barrier pad acceptable in dry basements
- Kitchen: LVP or tile ideal; hardwood and laminate acceptable in lower-risk zones away from the sink
- Living areas / bedrooms: Any flooring type works — waterproofing is less critical
What About Waterproof Underlayment?
Some installers recommend a waterproof underlayment under non-waterproof flooring in moderate-risk areas. This can help with minor moisture vapor transmission from below, but it doesn't make a non-waterproof floor waterproof — if water gets through the joints above, the underlayment only traps it against the core, potentially making damage worse.
Not sure if your chosen floor is appropriate for your specific area? Bring your floor plan and installation location to our showroom — we'll give you an honest assessment and recommend the right product.
