What are the signs I need a new roof on my New Brunswick home?

The most urgent signs you need a new roof on your NB home are visible daylight through the attic boards, active water staining on interior ceilings, sagging roof decking, or shingles that are curling, missing in multiple areas, or shedding granules heavily into your gutters. Any of these conditions means you're past the repair-or-wait question — the roof needs immediate professional attention before the next NB winter adds structural stress on top of an already compromised system.

Start your assessment from the attic on a sunny day. Bring a flashlight and look up at the underside of the roof decking. Light coming through is an obvious sign, but also look for dark water staining on the wood, soft or spongy feeling when you press on the decking boards, and any mould growth on the structural members. NB's humidity swings — from very dry winter interiors to humid Maritime summers — create ideal conditions for mould once moisture infiltrates. A musty smell in the attic is worth investigating immediately. Also check that your soffit vents and ridge vent are clear and functioning; inadequate ventilation accelerates shingle deterioration from above and moisture damage from below simultaneously.

From the ground with binoculars, look at the shingles closely. Curling shingles — either cupping upward at the edges (moisture-driven) or clawing upward at the middle (adhesion failure) — indicate a roof approaching the end of its service life. Cupping is often caused by moisture differential between the top and bottom of the shingle; clawing indicates the underlayment is failing or the shingles are shrinking with age. Either way, curled shingles cannot be repaired piecemeal — they're telling you the whole roof is aging out.

Granule loss is the other key indicator. Asphalt shingles have a protective mineral granule coating that protects the underlying asphalt from UV degradation. As shingles age, these granules loosen and wash into gutters. Check your gutters after rain — a thick layer of grit is a clear sign of advanced granule loss. Without granules, shingles degrade rapidly and lose their waterproofing integrity. Bare patches on shingles visible from the ground or during an attic inspection indicate spots where water infiltration is imminent or already occurring.

Mossand algae growth on NB roofs is extremely common given the province's moist Maritime climate. Black streaking (cyanobacteria) and green moss are both indicators of prolonged moisture retention on the roof surface. Moss in particular is damaging — its root systems work under shingle edges and lift them, accelerating deterioration. Moss and algae are treatable with zinc strips and proper cleaning if caught early, but a heavily infested roof may indicate that moisture has already penetrated the shingle mat itself.

Ice dam damage at the eaves is a classic NB problem. After a severe winter, inspect the eave area carefully — look for lifted shingles, missing flashing at the drip edge, and dark staining on the fascia boards or soffit below. Interior ceiling staining near exterior walls after a winter with significant freeze-thaw cycling is a strong indicator that ice damming has breached the roofing system. This doesn't automatically mean full replacement, but it does mean immediate professional inspection is warranted.

If your roof is 20+ years old and you're seeing two or more of these signs together — age, granule loss, some curling, light staining in the attic — the answer is almost certainly replacement rather than repair. Patching an aging NB roof buys a few more NB winters but not reliably, and emergency repairs in January are expensive and weather-constrained. A professional roofing inspection (many NB roofers offer free assessments) will give you a definitive assessment. Most reputable roofing contractors will be straightforward about whether the roof can be extended with repairs or whether replacement is the right call — the ones who always recommend full replacement regardless of condition are worth getting a second opinion on.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• Thirty Four Renovations
• Gionetterenovations