Vinyl Membranes for Decks in Kent, WA
Kent sits on the Green River valley floor, where a high water table meets the full Puget Sound wet season. A vinyl deck membrane is one continuous waterproof sheet — no board gaps, no fastener holes, nothing for water to find. North American made, from $2.75 USD/sq ft.
Valley damp, flat lots, tired decks
Kent's decks fight moisture from above and below. A vinyl deck membrane seals the walking surface completely, so the water has nowhere to go but off the edge.
Valley wet season
Kent takes months of steady Puget Sound rain each year. Board decks give that water a gap or a fastener hole every few inches; a heat-welded vinyl membrane gives it none.
High water table
The Green River valley floor holds moisture, and framing that never fully dries out rots from the underside. Keeping water off the deck surface entirely is the only reliable fix.
Split-levels and townhomes
East Hill, Panther Lake and Meridian are full of 1970s–90s split-levels with elevated decks, plus newer townhomes with decks over garages and living space. Those are membrane jobs, not surfacing jobs.
Shade and moss
Damp, shaded decks grow moss that holds water against the surface. Vinyl doesn't absorb water and moss can't root into it — it washes off.
Two membranes. Built for two jobs.
Valordek bonds directly to your substrate and heat-welds into one continuous waterproof surface. No board gaps, no fasteners through the surface, nothing for water to find.
68mil Fuzzy-Back
The standard for residential balconies and decks over living space. Contact-adhered with heat-welded seams for a fully sealed, walkable waterproof surface.
60mil Smooth-Back
Built for rooftop and amenity decks. PVC flashing on open decks plus heat-welded seams. Class A & C fire rated and Intertek tested.
Vinyl deck membranes across Kent and the valley
Kent spans the valley floor and the hills either side of it — East Hill and Panther Lake, the Meridian neighborhoods, and the newer townhome developments filling in around them. Housing runs from 1970s and 80s split-levels with elevated rear decks through to recent multi-family builds with decks sitting directly over garages and living rooms. Across all of it the problem is the same: months of rain, a valley that holds damp, and deck surfaces that were never truly waterproof to begin with.
A deck over an occupied room is a roof. It has to be waterproofed rather than simply surfaced. A vinyl deck membrane is a continuous heat-welded sheet, Intertek tested and code-compliant, so the space underneath stays dry.
What a vinyl deck membrane actually is
It isn't a coating or a board product. It's a single PVC sheet bonded to your prepared substrate, with every seam heat-welded so the whole deck becomes one waterproof surface. No fasteners pass through it, and there are no joints for water to work into.
Why boards and coatings fail here first
Constant valley damp soaks into wood and feeds rot underneath, while paint-on coatings blister once water gets beneath them. A membrane has no gaps to leak through and doesn't absorb water, so it sheds the wet season instead of holding it.
Made in North America, shipped locally
Valordek membrane is manufactured in Surrey, BC and ships into Washington regularly, so Kent projects stay close to the source for material, samples, and support.
Want a number for your deck? Try the cost calculator or reach out for a quote.
The technical detail
| Specification | Balcony (68mil) | Rooftop patio (60mil) |
|---|---|---|
| Installation | Contact adhesive + heat-welded seams | Adhesive + PVC flashing + heat-welded seams |
| Waterproofing warranty | 15 years | 15 years |
| Fire rating | — | Class A & C |
| Temperature range | -40°F to 176°F | -40°F to 176°F |
| Certification | Intertek tested | Intertek tested |
| Price (membrane only) | $2.75 USD/sq ft | $2.75 USD/sq ft |
A finish for every Kent home
Wood Look, Stone Look, and Classic — all stocked and ready to ship from our Surrey, BC warehouse.
Walnut Plank
Smoke Grey
Marble Beige
River Rock
Grey Stone
Beige StoneValordek on real decks
Valordek's membrane is made in Surrey, BC and ships across British Columbia, Alberta, Saskatchewan, and Washington — with dealers and installers in communities throughout the region.
Explore all service areasCommon questions
What is a vinyl membrane for a deck?
It's a single continuous PVC sheet bonded to your deck substrate, with all seams heat-welded so the surface becomes fully waterproof. Unlike boards or coatings, there are no gaps, joints, or fastener holes for water to get through.
Can a vinyl membrane go over my existing Kent deck?
Often, yes. If the structure is sound and the substrate can be properly prepared, the membrane bonds over it for a permanent waterproof finish. Contact us and we'll assess yours.
Does a vinyl deck membrane handle the Kent wet season?
That's exactly what it's built for. It's fully waterproof with no seams or fastener holes for rain to find, and it doesn't absorb water, rot, or grow moss into the surface the way wood and composite do.
What do vinyl membranes for decks cost in Kent?
The membrane starts at $2.75 USD per square foot for material. Installed cost depends on deck size, substrate condition, and complexity. Size it with the cost calculator, or reach out for a quote.
Will it work on a deck over my garage or a living space?
Yes — that's a core use. A continuous heat-welded membrane fully seals a deck or balcony over occupied space so water can't reach the room below. The 60mil membrane is Intertek tested and fire rated for it.
Get a vinyl deck membrane in Kent
Tell us about your deck or balcony and we'll connect you with your nearest dealer for samples, pricing, and a quote.