How much insulation should my Sherwood 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 insulation should my attic have?

It is settled depth and even coverage that decide performance, not the product name. We set depth markers before blowing so the result is measurable, and check the corners rather than just the area near the hatch.

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.

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.

Do you insulate over an addition or a vaulted ceiling?

Those need looking at specifically rather than quoting an average depth. Shallow attics, cathedral sections and knee walls are usually the coldest rooms in an Sherwood house and the parts a general top-up misses.

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.

Attic Insulation Sherwood Edmonton | Attic Top-Up

Attic insulation in Sherwood: air seal first, then blow

Attics in Sherwood lose depth over time — insulation settles, someone crawls through it for a wiring job, and the corners near the eaves are usually thin to begin with. A top-up is only worth doing if the baffles are clear and the ceiling below is sealed, so that is what we check before quoting.

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

Topping up against removing and replacing

Usually a top-up is fine

Old fibreglass in an Sherwood attic that is dry and undisturbed can be levelled and topped up. It still insulates, and removing it is a large cost for a small gain.

When it has to come out

Insulation that is wet, contaminated, or full of rodent activity gets removed rather than buried, because topping over it seals the problem in. We will tell you which of the two you have after looking, not before.

Sherwood drywall in context

About Sherwood

Annexed to the City in 1964, Sherwood was once part of the Town of Jasper Place.

What we see in Sherwood

In Sherwood the drywall work is plaster and lath repair, popcorn and stipple ceiling removal, careful patching into original surfaces. We confirm what your home actually needs on site, in writing, before anything starts.

Depth, and how to check we delivered it

Verifiable rather than assumed

Blown insulation settles, and depth is easy to claim and hard to check once the hatch is closed. We leave depth markers through the Sherwood attic so the installed depth can be read off later by anyone.

Even coverage

Depth is also an average — a deep drift in the middle and thin corners is not the same as an even blanket. Coverage to the edges is what actually reduces heat loss.

Ice damming and what the attic has to do with it

A heat problem, not a gutter problem

Ice at the eaves on an Sherwood roof usually means heat is escaping into the attic, melting snow on the upper roof, and that meltwater refreezing over the cold overhang.

Where the fix actually is

More heat tape rarely solves it. Sealing the air leaks and getting even insulation coverage right out to the eaves is what lowers the deck temperature. That is why we look at the attic when someone calls about ice, not at the roofline.

Cellulose against fibreglass in an Sherwood 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.

Storage in the attic and the insulation you lose

Boards over joists compress everything

Where a Sherwood 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.

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 Sherwood 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.

How it works

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

Free quote

We come out to your Sherwood 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 Sherwood 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 Sherwood 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 Sherwood 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 Sherwood 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 attic insulation contractor Sherwood 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 Sherwood Edmonton.

Read our reviews on Google

FAQ — Attic Insulation Sherwood Edmonton

Attic Insulation Sherwood Edmonton: your questions answered

How much insulation should my Sherwood 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 insulation should my attic have?: It is settled depth and even coverage that decide performance, not the product name. We set depth markers before blowing so the result is measurable, and check the corners rather than just the area near the hatch.
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.
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.
Do you insulate over an addition or a vaulted ceiling?: Those need looking at specifically rather than quoting an average depth. Shallow attics, cathedral sections and knee walls are usually the coldest rooms in an Sherwood house and the parts a general top-up misses.
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.

Get Your Free Drywall Quote

Tell us about your project — we’ll get right back to you, 7 days a week. Prefer to call? (403) 829-8702.

Full Name / Company

Phone Number

Email Address

Area

Service Needed

I agree to be contacted by Emplastrum Drywall about my project by phone, text, or email.

No obligation. We never share your information.

📐 Plan Your Project

Estimate Your Insulation

📐 Materials Calculator

How much do you need?

Enter your room size for a quick materials estimate.

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.

Rather we handle it? Get a free estimate →

Attic Insulation Sherwood Edmonton

Attic insulation in Sherwood: air seal first, then blow