Ice Dams On Orillia Roofs Are An Attic Insulation Problem
An ice dam forms when heat from the house melts the bottom of the snowpack on the roof and the meltwater freezes again at the cold eave. Orillia sits in the Georgian Bay snowbelt and averages close to ten feet of snow a year, and the winter of 2024 to 2025 dropped more than fifteen feet on the city. A roof here carries snow from December to March, so any heat leaking into the attic has a long time to do its work.
The fix is not on the roof. It is in the attic, where warm air escapes around pot lights, the attic hatch, plumbing stacks and the top plates of interior walls. Attic spray foam insulation seals every one of those leaks and insulates over them in the same visit. The sign that it worked is a roof that keeps its snow evenly all winter instead of wearing a bare stripe up the middle.
A Warm Roof In January Is Heat You Paid For
A roof that melts its own snow while the neighbour's roof stays white is losing heat through the ceiling. It is the most honest energy audit in Orillia and it costs nothing to read. Drive down any street in the North Ward after a snowfall and the houses with bare roofs are the ones spending the most on gas or hydro.
Foam on the attic floor, or on the underside of the roof deck when the attic holds ductwork, puts the roof back in the cold where it belongs. The house holds its heat, the snow stays on the shingles, and the ice dams that pulled the eavestrough loose stop forming.
Basement Walls In Older Orillia Homes Sweat And Grow Mould
Foundation walls in the older parts of the city, from the downtown grid out through the North Ward and the South Ward, are stone, block or early poured concrete, and most of them were never insulated. Warm house air reaches the cold wall, condenses, and feeds the musty smell that a dehumidifier never fully clears.
Basement spray foam insulation puts closed cell foam directly on the foundation wall, where it insulates, blocks vapour and seals the joint where the wood frame sits on the concrete. No poly sheet, no studs full of fibreglass against a damp wall, and no place for mould to start.
Crawl Spaces North Of Town Sit On Rock
The Canadian Shield reaches down to the Severn River, so houses around Washago, Severn Falls and the Rama side of Lake Couchiching often sit on shallow foundations, block crawl spaces or piers because there was no depth to dig. A vented crawl space in that country is a cold box under the floor all winter and a damp one all summer.
Crawl space spray foam insulation closes the vents, seals the walls and the rim joist with closed cell foam, and brings the space inside the heated envelope. The floor above stops being cold, and the pipes that run through the crawl space stop freezing.
Seasonal Cottages Around Orillia Are Becoming Year-Round Homes
Orillia is the service centre for the cottages on Lake Simcoe, Lake Couchiching, Bass Lake and the Severn River, and more of them are lived in through the winter every year. A building that was framed for July has thin or empty walls, an uninsulated floor over open piers or a vented crawl space, and plumbing that has never seen minus twenty.
Cottage and waterfront spray foam insulation starts with the floor, because an open floor is the coldest surface in the building and the one that freezes the pipes. Then the walls, then the roof, in the order that buys the most comfort for the money.
Garages And Bonus Rooms Are The Coldest Rooms In West Ridge
The subdivisions built in West Ridge and Westmount since about 2000 already have insulated walls and attics. What they usually do not have is a properly insulated garage ceiling under the bonus room, a sealed cantilever under the bay window, or a garage wall that keeps the cold off the mudroom.
Garage spray foam insulation fixes those specific details. Closed cell foam on the garage ceiling and the shared wall keeps the room above and the room beside it at the same temperature as the rest of the house, and it seals out the exhaust and fuel smell at the same time.
Century Homes In The North Ward Have Empty Walls
The brick and frame houses along Maple Drive, Bay Street and the streets around the downtown were built when wall cavities were left hollow. Some still carry knob-and-tube wiring and balloon framing that runs open from the basement to the attic. Those walls lose heat all winter and pull cold air up through the house like a chimney.
We take these one wall at a time. Where the plaster or the siding is coming off anyway, the open bays get spray foam insulation. Where the walls stay closed, the attic, the basement and the rim joist get sealed first, because that is where most of the heat is leaving. Solid masonry walls need care so they can still dry, and we will tell you plainly when foam is not the right product for a wall.
Two Products, And They Do Not Substitute For Each Other
Closed cell spray foam insulation is dense, rigid, about R-6 to R-7 per inch, and a vapour barrier at two inches or more. It goes on foundation walls, crawl spaces, rim joists, roof decks, garages and anywhere that gets damp or cold. Open cell spray foam insulation is soft, about R-3.5 to R-3.8 per inch, and lets vapour through. It fills deep wall cavities inside the heated part of the house and it absorbs sound.
Using open cell where closed cell belongs is the most common mistake we are asked to fix. The closed cell and open cell page explains the choice in full, and the quote we write always names which product goes where.
New Builds And Additions Get Their Insulation Right Once
A new house or addition in Orillia, Oro-Medonte or Ramara is the one time the whole envelope is open at once. New construction spray foam insulation seals the rim joist, the cathedral ceilings, the cantilevers and the tricky corners the framing left behind, then fills the walls to the thickness the plans call for. It is scheduled around the framer, the electrician and the drywall crew so nobody waits.
Spray Foam Insulation That Failed Has To Come Out First
Foam that was sprayed off-ratio, sprayed too cold or sprayed too thick in one pass shrinks away from the framing, cracks, turns crumbly or keeps a chemical smell for months. It cannot be sprayed over. Insulation removal and replacement covers the whole sequence, from cutting failed foam or wet, mouldy batts back to clean framing through to spraying the new material properly. We photograph what we find and put it in the quote.
Shops, Marinas And Farm Buildings Around Orillia Need Insulation Too
The steel-clad shops in the industrial park, the boat storage buildings along both lakes, and the pole barns and horse barns in Oro-Medonte and Severn all have the same problem: a metal or plywood skin that sweats on the inside every time the temperature swings. Commercial, shop and pole barn spray foam insulation sprays closed cell foam directly to the skin between the girts and purlins, which stops the condensation, stiffens the building and makes it possible to heat.
Spray Foam Insulation Cannot Be Left Bare Inside A House
Ontario's building code requires spray foam insulation in a living space to be covered by a thermal barrier, and half-inch drywall is the usual one. In an attic, a crawl space or another space nobody occupies, a tested coating is the normal answer. We include the covering in the quote or say plainly that it is excluded, so the number you compare is the whole number.
What A Spray Foam Insulation Quote In Orillia Actually Depends On
Four things set the price: the product, the thickness, the area and the access. Closed cell costs more per inch than open cell. Three inches costs more than two. A tight crawl space with a hatch in a closet costs more per square foot than an open basement. Published Ontario guides put installed open cell at roughly three to five and a half dollars a square foot and closed cell at roughly five and a half to eight and a half, and a typical attic, basement or garage lands somewhere in the low to mid thousands. Those are market ranges. Your number comes from the visit and arrives in writing.
Rebates Exist, And The Conditions Decide What They Are Worth
Ontario runs a home renovation savings program that has covered attic, wall, basement and crawl space insulation. Most of it needs a home energy assessment before the work starts and more than one upgrade done together, and the amounts and rules have changed more than once. We will tell you if your job is likely to qualify and point you at the program itself for the current terms. We do not build a quote around a rebate that might not arrive.