Maintenance is a system check
The visible shingles work with underlayment, decking, flashings, valleys, ventilation and drainage. Inspect after severe weather as well as at planned intervals, and keep dated photographs.
IKO notes that a roof may look sound while less obvious damage is present. A visual record supports comparison but does not replace an experienced roofer's assessment.
Begin from the ground and attic
Look for fallen or missing shingles, lifted corners, cracks, impact marks and debris. Check the attic, where safely accessible, for daylight, damp stains, odour, darkened timber or wet insulation.
Water can travel from its entry point, so an interior stain does not identify the failed shingle directly. Active leaks, sagging or wet electrical areas require urgent professional attention.
Separate lifted, missing and damaged shingles
A wind-lifted tab may settle back while its seal or fastening remains damaged. Missing, cracked, buckled or loose shingles should be assessed promptly by a trained roofer.
Do not add exposed nails or random sealant. A repair must match the roof system and follow the exact product's fastening, overlap and weather requirements.
Read granule loss in context
Some loose granules may occur, but exposed dark asphalt, irregular bald areas, cracking and increasing gutter deposits call for investigation. Compare photographs taken from the same safe viewpoint.
Do not pressure-wash or scrape asphalt shingles. IKO warns that pressure washing can be too harsh on the protective granules; use only a manufacturer-approved cleaning method.
Inspect valleys and penetrations as water paths
Valleys carry concentrated runoff. Chimneys, walls, roof windows and pipes depend on step flashing, counterflashing, boots and underlayment—not shingles or sealant alone.
GAF describes flashing as protection where roofing is interrupted. Rust, lifting, gaps, tears or improvised mastic patches require the surrounding assembly to be checked, not simply covered.
Keep gutters and eaves draining
Remove leaves and debris from safely accessible drainage points, check downspouts and direct runoff away from the building. Bent gutters, open joints and poor falls need repair.
Avoid damaging gutters with ladders or working near power lines. Stains beneath the eave may require the drip edge, overhang, gutter and underlayment to be assessed together.
Define repair scope after inspection
Storm damage, widespread ageing, poor fastening and condensation need different responses. Record shingles, flashing, underlayment, decking, ventilation and interior evidence on one plan.
Confirm the existing shingle and compatible components before ordering. Do not assume current stock, warranty or performance; verify labels, instructions and project details.
Close with safe records and acceptance
Photograph opened and repaired areas, record materials and dates, and remove loose nails and debris. Recheck from safe locations after suitable rainfall.
Roof access carries fall and surface-damage risks. Use competent workers and suitable protection; routine maintenance provides early warning, not a performance guarantee.