Blown-In Attic Insulation
Blown-in attic insulation spreads an even layer over the entire attic floor, around wires and trusses, while a clean existing layer stays in place.
How it works and what it costs
R-60 attic insulation is our usual target for Barrhaven attics: a deep, even layer over a sealed ceiling.
R-value measures how well a material slows heat. Natural Resources Canada lists R-50 as the floor for attics in the Ottawa climate and R-60 for colder regions, and the Ontario Building Code asks for close to R-60 in the attics of new homes. Bringing an older attic up to that level makes it match a house built today.
The answer depends on the material. Blown fiberglass needs about 20 to 22 inches for R-60. Cellulose needs about 16 to 17 inches. Batts stacked in two layers need roughly 18 inches.
We measure the existing layer in several spots, subtract it from the target, and order enough material to reach R-60 attic insulation everywhere, including the low edge of the roof over the outside walls. The quote states the starting depth, the added depth and the final R-value.
Deep insulation on a leaky ceiling still lets warm air rise through it. We seal the top plates, wire holes, fans and the hatch before adding depth, so R-60 attic insulation delivers the value on the bag.
Baffles at the eaves come next. A deep layer would otherwise bury the soffit vents and choke the attic. The attic ventilation and baffles page explains why.
Houses on the first streets of Old Barrhaven often have only a few inches left in the attic. Newer homes were built to lower levels than R-60 too. Either way, the gap is measured at the visit and filled in one day with blown-in attic insulation.
Bringing a nearly bare attic up to R-60 tends to run $2.00 to $3.20 per square foot in Ontario. A top-up over a fair existing layer costs less. The written quote shows the depth added and the price for each part.
Book a depth reading and a written R-60 attic insulation quote at no charge by calling (343) 301-5519. Our home page covers the other work we do in Barrhaven.
These jobs are often quoted together, because the same visit and the same crew can handle them in one trip to the attic.
Blown-in attic insulation spreads an even layer over the entire attic floor, around wires and trusses, while a clean existing layer stays in place.
How it works and what it costs
Attic insulation removal vacuums out wet, dirty or flattened material, leaving a bare floor that can be sealed and filled again from scratch.
How it works and what it costs
Attic air sealing plugs the gaps in the ceiling so warm house air stays downstairs, and it happens on every job before anything new goes on top.
How it works and what it costs
Attic ventilation moves outside air in at the soffits and out near the ridge, so the attic stays cold and dry in winter and less hot in summer.
How it works and what it costs
Room over garage insulation warms the bedroom or bonus room above an attached garage by sealing and insulating its floor, its short side walls and the slope overhead.
How it works and what it costs
Cathedral ceiling insulation fills the rafters above a sloped or vaulted ceiling, a closed space too tight for loose fill to be spread across.
How it works and what it costs
The attic insulation rebate from Ontario's Home Renovation Savings program covers a share of an attic upgrade, with the payment tied to the R-value the attic has before work begins.
How it works and what it costs
Attic insulation cost in Barrhaven depends on the attic's floor area, the depth you add, the sealing needed and whether old material comes out first.
How it works and what it costsThe visit sorts it out. We look at the whole attic and recommend only the work it needs.
Give us a few details about your home and its attic. Our office phones back to book the visit. Calls go to (343) 301-5519.