Cathedral ceiling insulation packs the thin rafter cavity above a sloped ceiling, where there is no attic floor to work on. The method depends on how deep the rafters are, how the roof vents and how we can get inside.

Kleinburg, Patterson and the newer streets of Vellore Village are full of great rooms with soaring ceilings, lofts and bedrooms under the roofline. Those rooms tend to overheat in July and lose heat in January, because the cavity above them is thin or half empty.

Cathedral Ceiling Insulation details

Three Ways To Do Cathedral Ceiling Insulation

Dense-pack cellulose can be blown into closed rafter bays through a row of small holes we patch and paint over. Batts behind foam baffles work when the ceiling is already open for a renovation. Foam boards fastened under the rafters and covered with new drywall suit cavities too shallow for anything else.

The quote explains which one fits your room, why, and what it costs.

Venting And Cathedral Ceiling Insulation

Plenty of sloped roofs rely on an air channel above the fill to let moisture escape. Baffles hold that gap open. Where the roof was built unvented, cathedral ceiling insulation is handled differently, and the quote describes how.

Cathedral Ceiling Insulation Pricing

Cathedral ceiling insulation is usually $3.50 to $7.00 for each square foot of sloped ceiling. The method, the height and any patching or new drywall set the final number.

Get A Cathedral Ceiling Insulation Quote

Phone (289) 210-8363 or send the form and we will come measure the slope. The home page has everything else we do in attics.

Related Attic Services

Most Vaughan attics end up needing two or three of these together.

  1. Grey blown cellulose piled deep on both sides of a plywood walkway between roof trusses

    Attic Insulation Top-Up

    An attic insulation top-up lays fresh blown fill over whatever clean layer is already there, lifting a thin attic to about R-60 in a single visit. It fits any attic whose existing insulation is still dry and free of droppings.

  2. Tan fiberglass batts between attic joists on each side of a plywood walkway leading to a gable vent

    Blown-In Fiberglass Insulation

    Blown-in fiberglass insulation is fluffy glass fibre carried by air down a hose until it drifts into every bay and corner. It weighs little, never soaks up water and brings a thin attic up to current levels fast.

  3. Thick grey-brown blown cellulose covering an attic floor beneath dark roof boards

    Blown-In Cellulose Insulation

    Blown-in cellulose insulation is shredded recycled paper treated with borates against fire, mould and insects. Blown to the right density, this attic insulation tucks around wires and truss plates and forms a heavy, quiet layer.

  4. Worker in a white protective suit and respirator stuffing old pink batts into a black bag in an attic

    Rodent Damaged Attic Insulation Removal

    When mice, squirrels or raccoons have nested in the attic, we take out the fouled attic insulation, disinfect the bare joists and close the holes they used from inside. New insulation is installed only after that.

  5. Worker in a dust mask and gloves pressing a pink batt into a wall stud bay beside a window frame

    Attic Air Sealing

    Attic air sealing blocks the openings between the rooms below and the attic, so heated air stays in the house and the fill above can do its job. We seal pot lights, wire holes, plumbing vents and wall tops from the attic side.

  6. Pink fiberglass batts laid around a framed attic hatch opening in a finished attic floor

    Attic Hatch Insulation

    Attic hatch insulation seals and insulates the access panel in your ceiling. An unsealed hatch can let out more heat than a large stretch of insulated ceiling around it.

  7. White loose-fill insulation spread across an attic floor up to the bottom of the roof trusses

    Attic Insulation Rebate

    Through its Home Renovation Savings program, Ontario's gas and electricity utilities have offered an attic insulation rebate topping out at $1,250 for an attic finished at R-50. Here is what the program's own pages said when we read them, so you can plan with real figures.

  8. Pink batts between joists across a whole attic, with a round window in the gable wall

    Attic Insulation Cost

    Attic insulation cost for a detached Vaughan house usually falls between $1,500 and $5,000. Job type, floor area and the state of the old fill push yours up or down that scale.

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