Is it time to replace your roof?
A roof replacement is a big purchase, and it should be made for the right reasons. In Airdrie, those reasons usually fall into one of three groups.
The roof is simply old. Asphalt shingles here last roughly 15 to 20 years — less than the number printed on the bundle, because hail, strong UV, constant wind and freeze-thaw cycles age them faster than the climates those ratings assume. Much of Old Town Airdrie and the older streets around it are on roofs from the 1990s or earlier.
A builder-grade roof has worn out early. Airdrie’s fast growth means thousands of homes went up with entry-level shingles at the same time. On many 2010s homes the roof is failing before the mortgage is half paid: granules gone from the south and west slopes, tabs lifting every windstorm, and bruises from the last hail season.
A storm finished it off. One bad afternoon of hail can bruise every shingle on the roof. When damage covers the whole surface, patching isn’t a real option — see hail damage roofing in Airdrie.
Signs your roof is due:
- Bare patches or heavy granule loss, especially on south- and west-facing slopes
- Shingles that curl, crack or lift in several areas, not just one
- Repeated wind failures along the rakes and ridge
- Leaks in more than one place, or water staining on the attic deck
- A soft or spongy feel underfoot, or daylight showing through the deck
If you’re not sure, start with a roof inspection. If the damage is limited, roof repair or a planned roof restoration may give you years more. Building an addition or garage instead? See new roof installation, and if you have old skylights, replace them with the roof — see skylight installation.
What a complete Airdrie roof replacement includes
A new roof is mostly work you will never see again. These are the components that decide whether it lasts, and every one should be on your quote:
- Full tear-off of old shingles and underlayment down to the deck, with disposal
- Deck inspection and repair — soft, delaminated or water-stained sheathing replaced before anything new goes on
- Ice-and-water shield along the eaves and in every valley, where ice dams and heavy snow push water sideways
- Synthetic underlayment across the rest of the deck
- New drip edge at eaves and rakes
- Starter strip on the eaves and the rakes — the rake edges are where Airdrie’s northwest wind gets under shingles first
- New flashing at walls, chimneys, skylights and every penetration, rather than reusing tired metal
- New vent boots and roof vents
- Ridge venting balanced with intake, so the attic stays cool in summer and dry in winter
- Shingles nailed to the manufacturer’s high-wind pattern, with wind-rated ridge caps
- Cleanup and a magnetic sweep of the lawn, beds and driveway
The upgrade that matters most in Airdrie: Class 4
Airdrie sits inside Alberta’s hail corridor. If you’re replacing a roof here, the most important decision isn’t the colour — it’s whether to install Class 4 impact-resistant shingles.
Class 4 is the highest rating under the UL 2218 impact test, in which steel balls up to 2 inches across are dropped onto the shingle. A Class 4 shingle is far more likely to come through a summer storm without bruising, which means fewer claims, fewer surprise repairs and a roof that reaches its full life. Some insurers also discount premiums for a Class 4 roof; ask yours before you decide.
In the Airdrie market, Class 4 shingles cost more per square foot than standard architectural shingles — the ranges are below. For most homes in the newer subdivisions, replacing a builder-grade roof with another builder-grade roof just starts the same clock again. We quote both options side by side so you can see the difference in black and white. More detail on our Class 4 impact-resistant shingles page.
If you plan to stay in the house for the long term, metal roofing is the other option worth pricing. It costs more up front and lasts decades longer than asphalt.
Our replacement process
- Free on-site estimate. We look at the roof, the attic and the ventilation, measure the roof and talk through materials.
- Written, itemized quote. Every item from tear-off to ridge cap is on its own line, with standard and upgrade options.
- Scheduling around the weather. A re-roof needs dry days and shingle sealant needs roughly 5°C or warmer to bond. We book the start date against the forecast, not just the calendar.
- Tear-off and deck repair. The old roof comes off down to the sheathing. Any bad decking is shown to you and replaced.
- Installation. Membranes, underlayment, drip edge, starter, flashing, shingles and venting go on in order, to the manufacturer’s high-wind specification.
- Cleanup and walkthrough. Debris goes straight into the bin, the yard gets a magnetic sweep, and we walk the finished job with you.
Replacing a roof in Airdrie: local details
Wind exposure. Subdivisions on the edges of the city — Reunion on the far northwest edge is the clearest example — face open farmland, and trees in newer phases are still small. Roofs there get the full force of the northwest wind. High-wind nailing and rake starter aren’t optional extras on those streets.
Steep, complex two-storeys. Many newer Airdrie homes have steep main roofs, multiple valleys, gables over the garage and roof-to-wall junctions everywhere. Those details take more flashing and more labour, and they are where poor installations leak first.
Older homes and hidden layers. Some Old Town roofs have a second layer of shingles over the first. Both come off, and older decks — sometimes plank rather than plywood — need more attention before the new roof goes on.
Ventilation in older attics. Homes from the 1980s and 1990s often have too little intake or exhaust by today’s standards. A replacement is the right time to fix it, because trapped heat and moisture shorten a new roof’s life.
What a new roof costs in Airdrie
These are typical Airdrie ranges for a full replacement and by material:
| Roof | Typical cost | Notes |
|---|---|---|
| 1,600 sq ft bungalow or bi-level | $8,000–$11,000 | Architectural shingles, simple roof. |
| 2,000 sq ft two-storey with valleys | $11,000–$15,000 | Architectural shingles. |
| Same home in metal | From $18,000 | Steel shingle or standing seam. |
Get an exact quote for your roof
Roof area, pitch, the number of layers to strip, deck repairs and roof complexity decide where your roof falls. The Airdrie roofing cost guide breaks down every factor, including the costs that don’t show up until the old roof is off. If the timing is hard, roof financing explains how homeowners spread the cost, and the metal roof cost guide covers the long-term alternative.
Why Rock Roofing for your replacement
- We know what’s on Airdrie roofs. Builder-grade lines, typical roof shapes, and the details that fail first in each part of the city.
- Tear-off to the deck, every time. No roofing over old shingles.
- Quotes you can check. Every component on its own line.
- Built for hail and wind. Class 4 offered on every quote; high-wind installation as standard.
Replacements across Airdrie
We replace roofs in every part of the city: 30-year-old homes in Old Town, builder-grade roofs reaching their limit in King’s Heights and Cooper’s Crossing, duplexes and laned homes in Hillcrest, and storm-damaged roofs in Reunion. We also work in Crossfield and Balzac.