Should I use mineral wool or fibreglass?

Fibreglass fitted well beats mineral wool fitted badly for an ordinary partition. Mineral wool is worth the difference on party walls, bedrooms and anywhere sound or fire performance matters — it is denser and holds its shape in the cavity.

Should batts be stapled tight to the studs?

The face-stapling shortcut dishes the middle of the batt and leaves a void behind it. A batt should sit by friction across its full width, touching framing on both sides and the sheathing behind.

Do you install the vapour barrier as well?

Yes, and the order matters. Insulation is completed first, the barrier goes on the warm side and is sealed at penetrations before boarding. None of it can be corrected once the drywall is up.

Can the rafter bays be filled right up?

Not in a vented cathedral ceiling. A clear air channel has to stay between insulation and roof sheathing, held open with baffles, or the deck cannot stay cold and dry.

My room is cold and draughty. Will batts fix it?

Probably not on their own. Draughts around windows, an unsealed rim joist or gaps at the top plate are air leaks, and insulation does not stop air. We would rather diagnose the draught and quote the sealing, which is usually the cheaper half.

Does it matter if the batt is squashed in a bit?

Yes, more than most people expect. Batts work through trapped still air, so compressing one into a narrow bay costs a real share of its performance. We measure the Edgemont bays and cut to fit rather than forcing a standard batt in.

Batt Insulation Edgemont Edmonton | Wall Batts

Mineral wool and fibreglass batts in Edgemont walls and ceilings

Most of what separates good batt work from bad in Edgemont is invisible once the drywall is on. That is exactly why it is worth doing carefully: nobody can inspect it later without opening the wall, and the difference shows up as a cold room rather than as a visible defect.

Odd bays cut to fit rather than packed
Rim joists insulated and air-sealed
Split and fitted around wiring and electrical boxes
Vapour control detailed before the board goes on
Mineral wool where fire or sound performance matters
Batts friction-fit to full cavity width, not compressed

Cathedral ceilings and leaving the air gap

Do not fill it completely

A vented cathedral ceiling in an Edgemont home needs a clear air channel between the insulation and the roof sheathing.

Why

Packing the rafter bay full removes the ventilation that keeps the deck cold and dry, which is how a warm sloped ceiling ends up with a damp deck. Baffles hold the channel open.

Wiring, boxes and the gaps behind them

Where the cold gets in

The fastest way to ruin a wall in Edgemont is to stuff the batt behind the wiring and the electrical boxes. It leaves an uninsulated void exactly where there is already a hole in the vapour barrier.

Split, do not stuff

The batt is split so half sits behind the cable and half in front, and it is cut around boxes rather than compressed past them. It is slower and it is the difference between a wall that performs and one that only looks insulated.

Insulating a Edgemont basement wall against concrete

Not the same as a framed wall above grade

A basement wall in Edgemont is concrete, cold, and can carry moisture from the ground. Batts pressed straight against bare concrete sit in exactly the wrong place: the cold side, where any moisture they pick up cannot dry.

How the assembly works

The framing is held off the concrete, or a rigid layer goes against the wall first, so the batts sit in a cavity that stays on the warm side. Getting that order wrong is the usual reason a finished Edgemont basement smells musty a year later.

Faced, unfaced, and the vapour question

Two systems

A kraft-faced batt carries its own vapour retarder; unfaced batts are paired with a separate poly barrier over the whole wall.

Why it matters here

Using both in the same Edgemont assembly can trap moisture between two retarders. We pick one system for the wall and stay with it rather than mixing what is on the shelf.

Cathedral ceilings and the ventilation gap

Do not fill it to the deck

In a vaulted Edgemont ceiling there has to be an air channel between the insulation and the roof sheathing. Packing batts tight to the deck closes it, and the roof has no way to dry.

What that costs later

Damp sheathing, mould and in the worst cases rot — none of it visible until it is expensive. The batt is sized so the channel stays open, which means accepting slightly less insulation depth in exchange for a roof that lasts.

Mineral wool against fibreglass in Edgemont

Different tools

Fibreglass batts are the common choice and perform well when fitted properly. Mineral wool is denser, holds its shape better in a cavity, handles fire differently and performs noticeably better for sound.

Where we would spend the difference

Party walls, bedrooms, mechanical rooms and any assembly where sound or fire matters. For an ordinary interior partition in Edgemont, fibreglass fitted well beats mineral wool fitted badly.

How it works

Simple, clean, on schedule — Batt Insulation in Edgemont Edmonton

Free quote

We come out to your Edgemont Edmonton property, take a real look at the batt insulation, and hand you a fixed price on the spot — no guessing, no vague ballpark. Every batt insulation quote in Edgemont 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 batt insulation in Edgemont 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 Edgemont Edmonton home while we finish the batt 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 batt insulation with us and you're happy with the result in Edgemont Edmonton. If anything needs a second look, we handle it before we call the job done.

Reviews

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FAQ — Batt Insulation Edgemont Edmonton

Batt Insulation Edgemont Edmonton: your questions answered

Should I use mineral wool or fibreglass?: Fibreglass fitted well beats mineral wool fitted badly for an ordinary partition. Mineral wool is worth the difference on party walls, bedrooms and anywhere sound or fire performance matters — it is denser and holds its shape in the cavity.
Should batts be stapled tight to the studs?: The face-stapling shortcut dishes the middle of the batt and leaves a void behind it. A batt should sit by friction across its full width, touching framing on both sides and the sheathing behind.
Do you install the vapour barrier as well?: Yes, and the order matters. Insulation is completed first, the barrier goes on the warm side and is sealed at penetrations before boarding. None of it can be corrected once the drywall is up.
Can the rafter bays be filled right up?: Not in a vented cathedral ceiling. A clear air channel has to stay between insulation and roof sheathing, held open with baffles, or the deck cannot stay cold and dry.
My room is cold and draughty. Will batts fix it?: Probably not on their own. Draughts around windows, an unsealed rim joist or gaps at the top plate are air leaks, and insulation does not stop air. We would rather diagnose the draught and quote the sealing, which is usually the cheaper half.
Does it matter if the batt is squashed in a bit?: Yes, more than most people expect. Batts work through trapped still air, so compressing one into a narrow bay costs a real share of its performance. We measure the Edgemont bays and cut to fit rather than forcing a standard batt in.

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Estimate only — rounded up, based on standard coverage rates (drywall +10% waste; paint ~350 sq ft per gallon per coat; batt bundles by cavity depth, less a framing factor; studs at your chosen spacing plus waste). Product coverage varies by brand — confirm quantities before buying. Ask us about the right R-value for your project.

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Batt Insulation Edgemont Edmonton

Mineral wool and fibreglass batts in Edgemont walls and ceilings