Vapour Barrier Cornerstone

Vapour Barrier Cornerstone

Poly Vapour Barrier Cornerstone
Basement Vapour Barrier Cornerstone

Vapour barrier installation in Cornerstone, Okotoks — 6 mil poly sealed over insulation before drywall, lapped at the seams and sealed at every penetration.

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Vapour barrier installation in Cornerstone, sealed before the board goes on

Vapour barrier installation in Cornerstone, sealed before the board goes on

A vapour barrier is one of the few things in a build that is completely hidden and completely unforgiving — once the drywall is on, a torn sheet or an unsealed outlet box stays that way for the life of the wall. In Cornerstone we install and seal 6 mil poly over the insulation on the warm side, lapped at the seams and sealed at every penetration, before any board goes up. Cornerstone is an Okotoks residential community, so basement development insulation is the main call here, with the main floors already insulated to a recent code. We cover Cornerstone, Central Heights, Crystal Ridge, Downey Ridge and the Okotoks area, 7 days a week.

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Vapour Barrier Cornerstone

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What affects the cost of vapour barrier installation in Cornerstone?

Area, penetrations and detailing

Vapour barrier cost in Cornerstone depends on the wall and ceiling area being covered, the number of penetrations that need sealing — outlets, vents, pipes and light boxes — and how much detail work the rim joist and window returns need. We measure the space and give a fixed price before we start.

Usually priced with the insulation

Most Cornerstone vapour barrier work is quoted together with the insulation and the boarding that follows it, because it is the same crew and the same visit. Housing in Cornerstone is mixed, which is why we look before we quote rather than after.

Which side the vapour barrier goes on, and why that is not optional

The warm side, always

In Cornerstone the barrier goes on the warm side of the insulation — the side facing into the heated Cornerstone room. That is what stops indoor moisture from travelling into the wall cavity and condensing when it reaches cold framing.

What goes wrong when it is reversed

A barrier installed on the cold side traps moisture inside the assembly instead of keeping it out. It is one of the few mistakes in a Cornerstone wall that cannot be corrected without opening the wall back up, which is exactly why we check every Cornerstone job before anything is covered. In Cornerstone we see everything from original finishes to recent renovations on the same block.

How we install and seal it in Cornerstone

Hung, lapped and sealed

We run the poly in the largest sheets the space allows to keep seams to a minimum, lap every seam over a stud or joist rather than in open cavity, and seal it — a stapled overlap on its own is not a seal.

The penetrations are the job

Outlet and switch boxes, bath fans, dryer vents, plumbing stacks and pot lights each get sealed individually in your Cornerstone home. Poly on the walls with open boxes behind it is not a working vapour barrier, and it is the single most common thing we find on jobs that were started by someone else.

Common vapour barrier situations in Cornerstone

In Cornerstone, cornerstone is a residential neighbourhood in Okotoks. Build years vary across the neighbourhood, so rather than assume what is behind the wall we confirm it on site — the finish, the texture and how the existing surface has aged all change how the repair is approached. One fixed price after an honest on-site look, and the job done right the first time.

Why Cornerstone homeowners have us do the vapour barrier

We are the ones boarding over it

As a drywall company we install the barrier the way we want to board over it, because we are the trade that has to live with what is behind the sheet in Cornerstone.

Left ready to be looked at

We leave the barrier complete and visible so it can be inspected before the drywall goes on — nothing gets covered until it has been seen.

Fixed price, same-day reply

We cover Cornerstone and the Okotoks area, 7 days a week. Free on-site quotes and a fixed price before any work starts. Housing in Cornerstone is mixed, which is why we look before we quote rather than after.
How it works

Simple, clean, on schedule — Vapour Barrier Installation in Cornerstone Okotoks

1

Free quote

The quote happens at your Cornerstone Okotoks home, in front of the work. We measure, we look at what is behind the wall where it matters, and the price we give is the price.

2

Book a day

Scheduling is settled in one conversation. The vapour barrier installation start date in Cornerstone Okotoks is confirmed and the team turns up on it.

3

The work

The vapour barrier installation is done in a protected work area. Furniture and floors in the Cornerstone Okotoks home are covered, and nothing is left for you to clean up at the end of the day.

4

Walk it with you

You sign off, not us. We go through the completed vapour barrier installation with you at the Cornerstone Okotoks home and fix anything that is not right that day.

Reviews

Rated by Okotoks Homeowners

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For vapour barrier installation in Cornerstone Okotoks, Emplastrum Drywall handles the repair, the restoration and the finish. What Okotoks homeowners think of that work is on our Google profile.

Go through them, then judge us on your own Cornerstone Okotoks project.

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FAQ — Vapour Barrier Cornerstone

Vapour Barrier Cornerstone: your questions answered

Does my basement development in Cornerstone need a vapour barrier?
Almost always, yes — exterior basement walls in our climate need a barrier on the warm side of the insulation before drywall. We confirm what your specific assembly needs on the site visit rather than guessing from the plan.
Which side of the insulation does the poly go on in a Cornerstone home?
The warm side — the side facing into the heated room. It is the detail that gets reversed most often, and it is not correctable once the wall is boarded.
Do you seal the outlet boxes and vents in Cornerstone?
Yes — every outlet, switch box, vent and pipe penetration gets sealed individually. Poly hung over open boxes looks finished and does not work.
Do I still need a vapour barrier in Cornerstone if I have spray foam?
Sometimes not — some spray foam assemblies act as their own barrier, and adding poly over them can be the wrong call. It depends on the product and the thickness, so we confirm on site instead of assuming.
Can you do the vapour barrier and the drywall together in Cornerstone?
Yes — insulation, vapour barrier and boarding as one job is the most common way we do it, and it means one crew is responsible for what ends up behind the wall. We also cover Central Heights, Crystal Ridge, Downey Ridge and the Okotoks area.
Emplastrum Drywall — Vapour Barrier Cornerstone | Taping, Mudding, Ceilings & Painting

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Everything else we handle in Cornerstone

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