Can you just blow on top of what is already there?

Usually yes, if the existing insulation is dry, undisturbed and not contaminated. If it is wet or shows rodent activity it comes out first, because topping over that seals the problem in rather than fixing it.

How do I know I got the depth I paid for?

We leave depth markers through the attic so the installed depth can be read off by anyone afterwards. Depth is easy to claim and hard to check once the hatch is closed, which is exactly why we mark it.

How much insulation should my McKernan attic have?

The depth comes from what the code asks for on your permit, not from us. What we can tell you is the depth you have now, whether it is even, and whether the eaves and hatch are dealt with — those three often matter more than the last few inches.

How much will this save me on heating?

We will not put a percentage on it. Too much depends on your air leakage, windows and furnace. We will tell you what depth you have now, what you would have after, and where the leaks are — those we can actually measure.

My bathroom fan seems to vent into the attic. Is that a problem?

Yes, and it needs correcting before insulating. It dumps warm wet air into the coldest part of the house, and burying it under fresh insulation hides a moisture source that will show up later as frost and staining.

Can I add over the old insulation?

Usually yes, if it is dry, even and uncontaminated. If it is wet, compacted, rodent-affected or hiding unsealed penetrations, removing it first is worth the cost, and we tell you which one we found.

Attic Insulation McKernan Edmonton | Attic Top-Up

Attic top-ups in McKernan that hold their depth

The most common mistake in an McKernan attic is blowing insulation over an unsealed ceiling. Warm moist air keeps rising through pot lights, top plates and the hatch, and it carries moisture into cold insulation where it condenses. We air-seal the penetrations first, then insulate.

Baffles kept clear so the soffit vents still breathe
Depth markers left in place so the result is verifiable
Attic hatch insulated and weatherstripped
Air sealing at pot lights, top plates and the attic hatch
Blown-in loose-fill to the depth your permit specifies
Existing insulation levelled before the top-up

Cellulose against fibreglass in an McKernan attic

Two products, different behaviour

Blown cellulose is denser, settles into gaps well and resists air movement through it better. Blown fibreglass is lighter, does not settle as much over time and is less prone to holding moisture.

How we choose

Either performs when installed to the right depth with the ceiling sealed underneath. We pick based on what is already up there and how the attic is built, and we tell you which we would use and why rather than defaulting to whichever is on the truck.

Depth is the whole number

What you are buying

Attic performance is almost entirely a function of settled depth and even coverage. Two attics with the same product can perform very differently.

How we handle it

Depth markers are set before blowing so the result is measurable rather than asserted, and the McKernan attic is checked at the corners rather than only where the hatch is. An attic that is deep in the middle and thin at the perimeter is the usual finding.

Storage in the attic

An honest trade-off

Boards laid over the joists in an McKernan attic compress the insulation beneath them and create a thin band right through the middle of the ceiling.

What we suggest

A raised platform over a limited area if storage is genuinely needed, so the insulation depth continues underneath it. Or accepting that a full-depth attic is not also a storage room.

Storage in the attic and the insulation you lose

Boards over joists compress everything

Where a McKernan homeowner has laid plywood across the joists for storage, the insulation beneath is squashed to joist depth. That strip performs at a fraction of the rest of the attic.

Options

Either the storage area is raised on a platform above the finished insulation depth, or it is accepted as a deliberately weaker zone kept as small as possible. What does not work is topping up around it and pretending the platform is not there.

Attics over additions and vaulted areas

The awkward spaces

An McKernan addition often has a shallow attic, a cathedral section or a knee wall, and those areas are where insulation is thinnest and access is worst.

Why they matter disproportionately

They are frequently the coldest rooms in the house, and they are the parts a general top-up misses because the blower cannot reach them. We look at them specifically rather than quoting an average depth across the whole ceiling.

Ventilation is not optional up there

Cold attic, by design

An McKernan attic is meant to run close to outdoor temperature so the roof deck stays cold and snow does not melt and refreeze at the eaves.

The failure it prevents

Blocking soffit vents with insulation causes exactly the ice damming people add insulation to prevent. Air sealing the ceiling below and keeping the vents clear are two halves of the same job.

How it works

Simple, clean, on schedule — Attic Insulation in Mckernan Edmonton

Free quote

We come out to your Mckernan Edmonton property, take a real look at the attic insulation, and hand you a fixed price on the spot — no guessing, no vague ballpark. Every attic insulation quote in Mckernan Edmonton starts with an honest, on-site assessment.

Book a day

We pick a day that works for your schedule and show up on time, ready to start the attic insulation in Mckernan Edmonton. No back-and-forth rescheduling — once it's booked, our team is there.

The work

We keep the dust under control and protect your Mckernan Edmonton home while we finish the attic insulation to a clean, paint-ready standard. Floors covered, doors sealed off, and the site left tidy at the end of every day.

Walk it with you

We don't pack up till you've walked the finished attic insulation with us and you're happy with the result in Mckernan Edmonton. If anything needs a second look, we handle it before we call the job done.

Reviews

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Emplastrum Drywall is the attic insulation contractor Mckernan Edmonton trusts for repair, restoration and finishing — rated on Google by Edmonton homeowners.

Read the reviews, or leave your own after your attic insulation project in Mckernan Edmonton.

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FAQ — Attic Insulation McKernan Edmonton

Attic Insulation McKernan Edmonton: your questions answered

Can you just blow on top of what is already there?: Usually yes, if the existing insulation is dry, undisturbed and not contaminated. If it is wet or shows rodent activity it comes out first, because topping over that seals the problem in rather than fixing it.
How do I know I got the depth I paid for?: We leave depth markers through the attic so the installed depth can be read off by anyone afterwards. Depth is easy to claim and hard to check once the hatch is closed, which is exactly why we mark it.
How much insulation should my McKernan attic have?: The depth comes from what the code asks for on your permit, not from us. What we can tell you is the depth you have now, whether it is even, and whether the eaves and hatch are dealt with — those three often matter more than the last few inches.
How much will this save me on heating?: We will not put a percentage on it. Too much depends on your air leakage, windows and furnace. We will tell you what depth you have now, what you would have after, and where the leaks are — those we can actually measure.
My bathroom fan seems to vent into the attic. Is that a problem?: Yes, and it needs correcting before insulating. It dumps warm wet air into the coldest part of the house, and burying it under fresh insulation hides a moisture source that will show up later as frost and staining.
Can I add over the old insulation?: Usually yes, if it is dry, even and uncontaminated. If it is wet, compacted, rodent-affected or hiding unsealed penetrations, removing it first is worth the cost, and we tell you which one we found.

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Attic Insulation McKernan Edmonton

Attic top-ups in McKernan that hold their depth