The most common roof problem in Airdrie
If you live in Airdrie, you’ve probably seen it: after a windy night, a few dark rectangles lying on the lawn or driveway, and a lighter patch on the roof where they used to be. The city sits on open prairie, and the north and northwest winds cross miles of farmland before they reach its roofs. On the newer subdivisions, where trees are still small, there’s very little to break those gusts.
Wind doesn’t usually rip a well-sealed shingle off a roof. It finds the ones whose seal has let go — or never formed — lifts them, creases them, and eventually tears them away.
Types of shingle damage we repair
Missing shingles. Blown off entirely, leaving the underlayment and the nails of the course below exposed.
Creased shingles. Lifted by the wind and bent back until the shingle folds. A creased shingle may lie back down and look fine from the ground, but the fold is a crack that lets water through and gives the wind an edge to grab next time.
Unsealed shingles. Shingles whose adhesive strip never bonded or has let go. They flutter in the wind and are the next ones to leave.
Cracked and brittle shingles. Older shingles, especially three-tab shingles on older homes, crack as they age and as they’re lifted by wind.
Nail pops. Nails that back out as the deck moves with the seasons push up through the shingle above them and create a small hole directly over the deck.
Damaged ridge caps. Caps take wind from both sides and are often the first thing to go on an exposed roof.
Hail-bruised shingles. Shingles with fractured mats and lost granules. A few can be replaced; widespread bruising usually means a claim — see hail damage roofing.
Why shingles come off: the real causes
Replacing shingles is easy. Keeping them on is the real work. These are the causes we find most often on Airdrie roofs.
Shingles that never sealed. Shingle sealant strips need warmth — roughly 5°C and sunshine — to bond. In a growing city, production builders roof homes year-round. Roofs installed in late fall or winter can go months without a good seal, and some edges never bond properly at all. Those are the shingles that lift first.
High nailing. Every shingle has a nailing zone. Nails placed above it miss the overlap of the shingle underneath, so each shingle is held by fewer fasteners than it should be. It’s a common production shortcut, and it shows up in exactly the pattern you’d expect: whole strips of shingles tearing free along a line.
No starter strip at the rakes. Most roofs get a starter strip along the eaves. Far fewer get one along the rake edges — the sloped edges at the gable ends. Without it, the first shingle at the edge has no adhesive underneath to hold it, and that’s where Airdrie’s wind gets in first.
Age. As shingles age, the asphalt dries out, the sealant weakens and the shingles become brittle.
How we repair shingles
- Assess the area. We look at the damaged section and the roof around it, including the seal on neighbouring shingles.
- Find the cause. Check nailing, rake starter and seal condition.
- Match the shingles. Closest available match in style and colour.
- Replace carefully. Neighbouring shingles are unsealed and lifted without cracking them, damaged shingles removed and new ones nailed in the correct zone.
- Seal. New and surrounding shingles are hand-sealed, especially in cool weather.
- Fix the edge. Where the rake has no starter, we add one to the repaired section.
- Photos. Before and after, so you can see the work.
Ridge caps and hips
Ridge caps and hip shingles sit on the highest, most exposed lines of the roof, and they catch wind from both sides. On Airdrie roofs, they’re often the first thing to go in a storm, and a missing cap exposes the ridge vent or the top of the deck to water.
Replacing them properly means using cap shingles made for ridges rather than cut-down field shingles, nailing them in the correct spot with fasteners long enough for the ridge vent beneath, and sealing each cap to the one below. Where the ridge vent itself has been damaged or lifted, it’s replaced at the same time, because a loose ridge vent is also a common path for wind-driven snow into the attic.
Matching shingles in Airdrie
Matching is the most common worry, and it’s a fair one. Two things work against a perfect match:
- Weathering. A shingle roof changes colour as its granules age in the sun. Even an identical new shingle will look brighter at first.
- Discontinued lines. Many builder-grade shingle lines installed in Airdrie subdivisions over the past two decades have been discontinued or reformulated.
We bring the closest available match in the same style — dimensional architectural shingles, for example — and on a small repair the difference usually fades within a season or two. On large areas or after storms, a noticeable mismatch is worth raising with your insurer. See hail damage roofing.
Repair or replace?
Shingle repair is the right answer when the damage is limited and the rest of the roof is sound. It’s time to consider a new roof when:
- Shingles are brittle and crack when lifted to repair their neighbours
- Granule loss is widespread, especially on south- and west-facing slopes
- You’re repairing wind damage every season
- The roof is near the end of its 15 to 20 year life in Airdrie
At that point, a roof replacement with Class 4 impact-resistant shingles and a proper high-wind installation is usually better value than another season of patches.
What shingle repair costs
| Repair | Typical cost | Notes |
|---|---|---|
| A handful of wind-lifted shingles | $400–$800 | Re-set, replaced and hand-sealed. |
| Ridge cap or rake edge run | $600–$1,500 | Where Airdrie wind damage starts. |
Get an exact quote for your roof
Most shingle repairs we do in Airdrie are one of those two jobs; soft decking underneath is what turns a shingle repair into something bigger. Our roof repair cost guide shows what wind-lifted and missing shingles typically cost to fix, and when a patch stops being worth it.
Shingle repair across Airdrie
We repair shingles on every kind of Airdrie roof: builder-grade roofs in King’s Heights and Cooper’s Crossing, duplex roofs in Hillcrest, wind-exposed roofs in Reunion and older three-tab roofs in Old Town. If water is getting in, see roof leak repair; after a major storm, see storm damage roof repair.