Roof soundproofing in Burlington is a specialized request, and Fixall Roofing handles it as a roofing and attic job rather than a product sale. Most calls come from owners of steel roofs who hear every downpour, and from families living close to the QEW, Highway 403 or the Lakeshore West rail corridor.
Noise gets into a house through a few predictable weak spots: thin roof assemblies, half-empty attic bays and unsealed gaps around vents and pot lights. We quiet a roof by adding mass, adding dense insulation and closing air leaks, because those three steps do most of the work.
We also set honest expectations before we quote. A properly built roof and attic can make rain, hail and traffic noticeably quieter, but no roof makes a home beside a highway silent.
Soundproofing work falls into three situations, and the right method depends on whether the roof is going on, staying put or coming off. Each option below targets a different stage of the roof's life.
When we install metal roofing, the quiet assembly is part of the plan: a solid plywood or OSB deck, a synthetic underlayment and panels fastened to that deck instead of to open strapping. Building it in at the start costs far less than retrofitting later.
For a roof that is staying in place, most of the gain comes from inside. We seal air leaks in the ceiling plane, then add dense-pack cellulose or mineral wool so there is real mass between the roof and your bedrooms.
A roof replacement exposes the deck, which is the one time you can add thicker sheathing or an acoustic underlayment without opening ceilings. If traffic noise is your main complaint, we pair this with an attic top-up on the same visit.
Noise reaches a room either as impact, where something strikes the roof, or as airborne sound that travels through gaps and thin materials. Identifying which one you are hearing decides the fix.
Steel panels fastened over strapping with an air space beneath act like a drum skin. Over a solid deck with underlayment, the same rain sounds much closer to a shingle roof.
Homes near the QEW, the 403 and 407 junction, or the Aldershot and Appleby rail lines get steady low-frequency rumble. That sound comes in through every weak layer, so attic mass and air sealing matter more than the roofing itself.
Loose box vents, open ridge vent ends and lifted flashing can whistle or flutter in strong lake winds. These are small roofing repairs, and they often solve what owners assume is a bigger problem.
Exposed-fastener metal panels can rattle when screws back out, and they tick as steel expands in morning sun and contracts at night. Worn rubber washers and missing closure strips make both worse.
The table compares the methods we use most often. Noise reduction is shown as relative, because the result depends on the house, the noise source and how many layers are combined.
| Method | Main Target | Relative Noise Reduction | Cost Tier |
|---|---|---|---|
| Solid deck plus underlayment under metal | Rain and hail impact | High for impact noise | Moderate, lowest on a new install |
| Dense-pack or deep blown cellulose | Traffic and rail noise | Moderate to high | Low to moderate |
| Mineral wool batts, such as Rockwool | Airborne noise | Moderate | Moderate |
| Acoustic underlayment | Impact noise on metal | Low to moderate alone | Moderate |
| Air sealing ceiling gaps | Sound leaking through holes | High for the cost | Low |
Combining methods works better than relying on one. A sealed ceiling with 14 to 16 inches of cellulose above it usually outperforms an expensive underlayment installed on its own.
Mineral wool is non-combustible, and cellulose is treated with a borate fire retardant. Both are far denser than standard fibreglass batts, which add warmth but much less sound control.
Many metal roofs in Halton were installed over 1x4 strapping on top of old shingles or bare rafters. That leaves an air gap that amplifies rain, and it is the most common reason owners call us about noise.
Our first step is fastener work. The rubber washers on exposed screws break down in UV after many years, so we replace loose or stripped fasteners with slightly oversized screws and new EPDM washers, which stops rattling and closes small leak points at the same time.
Next we check the foam closure strips at the eaves and ridge. Missing closures let wind flutter the panel ends and let birds and wasps in, so we install profile-matched closures and seal them with butyl tape.
Ticking from expansion is harder to cure on exposed-fastener panels, because the screws pin the steel in place. We can reduce it by correcting over-driven or misaligned fasteners, but standing seam panels on floating clips are the long-term answer if ticking is the main complaint.
Finally, we add mass from inside the attic. Where there is no attic, such as a vaulted ceiling, the realistic options are limited to the roof side, and we will tell you if replacing the panels over a solid deck is the only way to get a meaningful change.
Dense insulation that blocks sound also slows heat loss, so one attic visit can deliver both benefits. Burlington homes built before the 1990s often have only 4 to 8 inches of settled insulation, well below what current energy codes expect for new homes.
When we upgrade attic insulation for noise, we start with air sealing at top plates, plumbing stacks, pot lights and the attic hatch. Sound and warm air leak through the same holes, so sealing them first makes every inch of insulation work harder.
We keep soffit vents open with rigid baffles before blowing in material. Blocking intake airflow to gain a little extra depth would trade a quieter attic for moisture and ice dam problems, which is a mistake we see often.
Soundproofing reduces noise, it does not eliminate it. On a metal roof moved from strapping to a solid deck, heavy rain typically drops from a sharp drumming to a dull patter that most people stop noticing.
Traffic noise is harder. Low-frequency truck and train rumble passes through walls and windows as well as the roof, so if your windows are older single-pane units, they may be the weaker link and roof work alone will not fix it.
Before we quote, we ask where in the house the noise is worst and when you hear it. If the evidence points away from the roof, we tell you, and we only recommend roofing work we expect to make a difference you can hear.
Yes, dense insulation such as blown cellulose or mineral wool absorbs airborne noise like traffic and aircraft before it reaches the ceiling. It works best when the ceiling is air sealed first, because sound follows the same gaps as escaping heat.
Yes, mostly from the attic side by air sealing and adding dense insulation, plus roof-side repairs such as new fasteners and closure strips. If the panels sit on open strapping with no attic below, the biggest improvement usually requires reinstalling them over a solid deck.
Tell us what you hear, when you hear it and what type of roof you have. We will inspect the roof and attic, explain which layers are letting noise in and give you a written quote with the options ranked by the difference they should make.
Soundproofing work is carried out by our insured crew, trained under Ontario's Working at Heights standard, and the labour is guaranteed for one year; installed materials keep their own manufacturer warranties.
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