Deck building services · Parksville
Vinyl Membrane Decking in Parksville
Sheet-waterproofed decking that keeps the space below dry.

Parksville Deck Builders installs vinyl membrane decking across Parksville, Lantzville and Nanaimo, wherever a deck sits over living space or dry storage below. Installed cost runs $50 to $85 per square foot, and we spec the sheet membrane to keep the space underneath dry through the wet-coast winter.
Vinyl membrane decking runs $50 to $85 per square foot installed.
When a vinyl membrane deck is the right call
A vinyl membrane surface is the material to use whenever your deck sits over living space, a carport, or dry storage that needs to stay dry — a carport roof deck, a walkout deck over a suite entrance, or an upper deck over a covered patio.
How the membrane system works
A sheet vinyl membrane is installed over sloped plywood sheathing with sealed seams and flashing at every wall and post penetration, then a drain carries water off the deck rather than through it. Getting the slope and drains right is what keeps the space below dry.
The installation process
- 1
Assessment and slope check — we confirm the substrate and plan the slope and drain locations before installing.
- 2
Sheathing and flashing — plywood sheathing goes down first, with flashing detailed at every wall and post.
- 3
Membrane installation — the vinyl sheet is installed and heat-welded at the seams for a continuous waterproof surface.
- 4
Drain testing — we flood-test the drains before calling the job finished.
What does this property's site mean for the job?
A vinyl membrane deck here has to handle a full wet-coast winter of standing rain, not just occasional showers, so we size the slope and drains for the worst of it.
What does a typical job look like?
- The problem
- A Parksville home has a carport and storage room under an upper deck that leaks through the old boards.
- What makes it harder
- Rainwater has been tracking through the gaps in the old wood decking directly onto items stored in the carport below.
- What we do
- We install a sheet vinyl membrane over 180 square feet of the upper deck, sloped to a single drain, and the storage space below stays dry.
People also ask
How much does vinyl membrane decking cost?
Installed cost runs $50 to $85 per square foot for a vinyl membrane surface.
Do I need vinyl membrane decking, or can I use regular decking?
Vinyl membrane is the material to use whenever the deck sits over living space, a carport, or anywhere that needs to stay dry underneath.
For related help, see new-build decks and repair services, or compare typical prices in the deck pricing guide. See also Parksville and Lantzville.
Deck building in nearby communities
Keep exploring
- Compare deck costsInstalled price ranges by material and size.
- New Deck ConstructionParksville Deck Builders builds new decks in Parksville and the Regional District of Nanaimo — pressure-treated, cedar, composite or vinyl, from $6,000.
- Deck Repairs & RotParksville Deck Builders repairs deck rot in Parksville and the Regional District of Nanaimo — board, joist and framing repair from $150, plus re-decking.
- Parksville Deck Builders home
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