Serving Barrie, Springwater & Essa

Free written estimates · +1 (705) 243-3246

Cathedral ceiling insulation fills the space between the rafters in rooms where the ceiling follows the roof. That includes vaulted living rooms, bonus rooms over a garage and the upper floor of a story-and-a-half house.

Barrie Attic Insulation plans each sloped ceiling on its own, because the right method depends on how much room there is between the drywall and the roof boards.

Cathedral Ceiling Insulation details

Sloped Ceilings Need Cathedral Ceiling Insulation

A sloped ceiling has very little depth for insulation, often just the width of the rafter. Older houses near Allandale and downtown frequently have thin batts or nothing at all behind the plaster. Without cathedral ceiling insulation, these rooms feel cold in winter, hot in summer, and the roof above them is often where ice forms first.

Three Ways To Do Cathedral Ceiling Insulation

When the ceiling is closed and the rafter bays are empty or thin, dense-pack insulation can be blown in through small holes and patched afterward. When the ceiling is open during a renovation, closed cell spray foam sprayed straight onto the roof sheathing packs the most R-value into a shallow rafter. When there is an attic above a flat section of ceiling, that section is insulated like any other attic insulation top-up.

We tell you which method fits your room, and why, on the free visit.

Air And Moisture Control With Cathedral Ceiling Insulation

In a sloped ceiling, warm air leaking through the drywall has a short trip to the cold roof boards. That is why cathedral ceiling insulation needs a good air barrier on the room side, and why spray foam is popular for these spaces. Where the roof is vented, a channel is kept open between the insulation and the roof boards.

Cathedral Ceiling Insulation Pricing

Expect cathedral ceiling insulation to land between $3.50 and $7.00 a square foot of ceiling, depending on the method and whether the ceiling is already open. The written quote explains the method and the finished R-value. The Ontario attic insulation rebate also has a cathedral ceiling level.

Get A Cathedral Ceiling Insulation Quote

Call (705) 243-3246 to book a free visit for the room that bothers you. Our home page lists every attic service.

More Ways To Fix The Attic

Most attic jobs in Barrie combine two of these, such as air sealing and a top-up.

Deep white blown-in fibreglass filling the attic floor between the roof trusses

Blown-In Attic Insulation

Blown-in attic insulation fills the whole attic floor with loose fibres that settle around trusses, wires and vent pipes. We blow it to a measured depth, usually R-60, and write that depth on the invoice.

Details and pricing
Deep grey cellulose blown in on both sides of a plywood walkway down the middle of an attic

Attic Insulation Top-Up

An attic insulation top-up blows fresh loose fill on top of whatever layer is already there. It is the quickest and least expensive way to bring an attic up to today's levels without tearing anything out.

Details and pricing
Water stains on the roof boards above wet pink insulation at the edge of an attic

Ice Dam Prevention

Ice dam prevention means keeping the roof boards cold so snow does not melt from underneath. We do it from inside the attic by sealing air leaks, adding attic insulation and keeping the eave vents open.

Details and pricing
Two workers vacuuming old grey insulation out of an attic, with bare joists showing behind them

Attic Insulation Removal

Attic insulation removal clears out worn or spoiled material, leaving bare joists ready for sealing and a fresh fill. We remove loose fill, old batts and mixed layers with a high-powered vacuum.

Details and pricing
Worker with a flashlight checking the bare top plates and joists of an empty attic

Attic Air Sealing

Attic air sealing plugs the cracks and holes in a ceiling that leak heated air upward. We seal those gaps with spray foam, caulking and gaskets before any new attic insulation is blown over them.

Details and pricing
Pink batts at the eaves of an attic with soffit vents along the roofline

Attic Ventilation

Attic ventilation lets outside air flow in low at the soffits and out high at the roof vents, so the attic stays cold and dry in winter. We check that flow and fix it as part of every insulation job.

Details and pricing
Attic with thin pink batts laid between the joists, well below today's levels

Attic Insulation Rebate

The Ontario attic insulation rebate sits inside Home Renovation Savings, which Enbridge Gas funds alongside Save on Energy. Under its attic stream, homeowners can get money back for raising an attic to R-50 or more without booking an energy audit.

Details and pricing
Attic with a mix of old batts and loose fill of different depths between the joists

Attic Insulation Cost

The attic insulation cost for most Barrie houses falls between $1,250 and $3,000. The figure for your house comes down to three things: the attic's square footage, the depth already up there and the number of air leaks to close.

Details and pricing

Book A Free Attic Check

Tell us what is going on upstairs, and we will call to book a visit at a time that suits you.

Tell Us About Your Attic

A few details about the house and the problem help us plan the visit. Calls go to +1 (705) 243-3246.

Thanks — your request has been received. Expect a call from our office, usually before the business day ends, to pick a time for your attic check. For anything urgent, call +1 (705) 243-3246.

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