What about the wiring in the wall?

The batt gets split so part sits behind the cable and part in front, and it is cut around boxes. Stuffing it behind the wiring leaves an uninsulated void right where there is already a hole in the vapour barrier.

Can you insulate my finished walls without removing the drywall?

Not with batts — they need an open cavity. That is a job for a blown-in or injected product, or for adding insulation on the room side. We will tell you that rather than sell you a partial job.

Do you cut batts to fit?

Yes. Real Leger framing carries bays wider or narrower than nominal, plus cripples and blocking. Forced batts are compressed and underperform; short ones leave gaps that convect. Both are invisible after boarding.

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.

Why is my Leger basement cold along the floor edge?

Usually the rim joist. It is thin, directly exposed to outside, and in most basements it is bare or has a batt tucked loosely against it. It needs air sealing first, then insulating.

Does the garage wall need anything special?

Usually yes — a fire separation as well as insulation, planned together because the board is specified. Insulation and vapour control go in and get inspected, then the rated board goes on.

Batt Insulation Leger Edmonton | Wall Batts

Batt insulation in Leger before the vapour barrier goes on

Most of what separates good batt work from bad in Leger 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.

Rim joists insulated and air-sealed
Split and fitted around wiring and electrical boxes
Odd bays cut to fit rather than packed
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 Leger 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.

Leger drywall in context

About Leger

The Leger neighbourhood was named after a long serving Edmonton politician, Edmund Hugh Leger, who was first elected to City Council in 1959 and went on to serve as an alderman for 25 years.

What we see in Leger

In Leger the drywall work is first-year settling, basement dev for first owners, Level 5 over builder-grade. We confirm what your home actually needs on site, in writing, before anything starts.

Insulating an existing Leger wall without opening it

The honest limits

Batts need an open cavity. If a Leger wall is finished and staying finished, batts are not the product — that is a job for a blown-in or injected material, or for adding insulation on the room side.

What we say

We would rather tell you batts are the wrong answer for a closed wall than sell you a partial job. Where the wall is already open for other work, that is the moment to insulate properly.

Cathedral ceilings and the ventilation gap

Do not fill it to the deck

In a vaulted Leger 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.

Sound as a side effect of insulating

You get some for free

Filling an interior Leger wall cavity with batts noticeably reduces voice and television noise between rooms, even when sound was not the reason for the job.

Where to spend a little more

If a bedroom, office or bathroom wall is being opened anyway, upgrading that specific cavity to a denser acoustic or mineral wool batt costs very little on top of work already happening. We will point out which walls those are while we are quoting.

Compression is the most common Leger mistake

A squashed batt is a weaker batt

Batt insulation works because of the still air trapped in it. Compress it into a narrower bay and you lose a meaningful share of its performance while paying for the full product.

The fix is measurement

Leger framing is not always at a standard spacing, especially in older homes and renovations. We measure the bays and cut to fit rather than forcing a standard batt into a non-standard cavity.

Mineral wool against fibreglass in Leger

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 Leger, fibreglass fitted well beats mineral wool fitted badly.

How it works

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

Free quote

We come out to your Leger 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 Leger 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 Leger 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 Leger 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 Leger Edmonton. If anything needs a second look, we handle it before we call the job done.

Reviews

Rated by Edmonton Homeowners

★ ★ ★ ★ ★

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

Read the reviews, or leave your own after your batt insulation project in Leger Edmonton.

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FAQ — Batt Insulation Leger Edmonton

Batt Insulation Leger Edmonton: your questions answered

What about the wiring in the wall?: The batt gets split so part sits behind the cable and part in front, and it is cut around boxes. Stuffing it behind the wiring leaves an uninsulated void right where there is already a hole in the vapour barrier.
Can you insulate my finished walls without removing the drywall?: Not with batts — they need an open cavity. That is a job for a blown-in or injected product, or for adding insulation on the room side. We will tell you that rather than sell you a partial job.
Do you cut batts to fit?: Yes. Real Leger framing carries bays wider or narrower than nominal, plus cripples and blocking. Forced batts are compressed and underperform; short ones leave gaps that convect. Both are invisible after boarding.
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.
Why is my Leger basement cold along the floor edge?: Usually the rim joist. It is thin, directly exposed to outside, and in most basements it is bare or has a batt tucked loosely against it. It needs air sealing first, then insulating.
Does the garage wall need anything special?: Usually yes — a fire separation as well as insulation, planned together because the board is specified. Insulation and vapour control go in and get inspected, then the rated board goes on.

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Room length (ft)Room width (ft)Ceiling height (ft)Number of rooms Include ceilingSheet sizeCoats of paintCavity depthFraming spacingInsulation already there (in)Top up to (in)Stud spacingDoorsWindowsWaste allowance (%)

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 Leger Edmonton

Batt insulation in Leger before the vapour barrier goes on