Commercial Garage Roof Repair and Waterproofing

Planning Commercial Garage Roof Repair and Waterproofing

Commercial garage roof repair starts with finding where water enters. Cracks, worn coatings and failed joints can let rain reach the space below. However, the source may sit far from the visible drip.

GTA Restoration helps property owners and managers in Toronto and the GTA plan leak repairs and drying. First, share when the leak started and which areas it affects. This helps the team plan the inspection.

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Signs You Need Garage Roof Repair

Look for new stains, loose coatings or open joints from a safe place. Also, note water that pools after rain or returns during a thaw. Photos and dates can help show a pattern.

Rust stains, loose concrete or cracks that change need prompt review. If pieces are falling, keep people clear and seek urgent help. A structural engineer should assess concerns about the deck’s strength before crews plan repairs.

Trace the Garage Roof Leak

A ceiling stain shows where water appeared, but it may not mark the entry point. Therefore, the crew should check drains, seams and wall connections as well as the area above the drip.

Share old drawings and repair notes where you have them. Our leak detection service can help investigate a source that is hard to locate. Then, the findings guide the repair scope.

Choose the Right Garage Roof Waterproofing

A roof above a garage differs from an exposed deck that carries cars. Both need water control, but a parking deck also needs a system suited to vehicle wear and movement.

For that reason, garage roof waterproofing must match the surface and its use. Ask which system the team proposes and how it connects to existing materials. A coating alone cannot fix a weak structure.

Repair the Surface Before Coating

First, crews assess cracks, loose concrete and failed seals. The repair method depends on the damage and whether the joint or crack moves. Next, they prepare the surface to suit the chosen product.

Putting a fresh layer over loose material can leave problems beneath it. For more detail, see Tremco’s parking structure guidance on crack repairs and surface preparation.

Check Joints and Drainage

Water can enter where the deck meets a wall, drain or pipe. Therefore, the plan should include these connections and joint seals. Moving joints need a repair that allows for that movement.

Standing water also needs a cause check. A blocked drain may be part of the problem, but poor slope or a damaged drain connection may need further work.

Plan Parking Garage Roof Repairs

Before work starts, agree on closed parking spaces and safe routes. Also, tell tenants when they must move cars. Ask how weather could affect the schedule and what happens if rain interrupts the work.

New coatings need time to cure before use. Therefore, reopen each area only when the crew confirms it is ready. Foot traffic and cars may have different waiting times.

Dry Wet Rooms Below

Roof repairs address new water entry. However, wet walls, ceilings and stored items may still need care. Moisture checks can help guide drying before crews replace finishes.

Our commercial drying team can assess related indoor damage. Keep clear of wet electrical equipment and arrange qualified help where needed.

Maintain the Completed Repairs

After commercial garage roof repair, keep inspection notes and product records. Follow the maintenance plan for drains, joints and coatings. Also, report new drips or worn patches early so the team can check them.

Commercial Garage Roof Leaking?

Contact GTA Restoration to discuss roof leaks, waterproofing and indoor water damage in Toronto and the GTA.

Call Us: 416-800-0000

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