Deck Waterproofing

Balcony, walkway, and deck waterproofing for associations and commercial buildings

Balconies, walkways, stairs, and plaza decks are the parts of a building most likely to fail first in Orange County: constant sun, salt air near the coast, and foot traffic break down coatings and let water into the framing. Merit Roofing & Waterproofing installs waterproofing systems, repairs the framing and flashing underneath them, and handles the repairs that come out of SB 326 and SB 721 inspection reports, for homeowners associations, apartment owners, and commercial properties. Licensed B/C #1118086, bonded, and insured.

What we waterproof

• Balconies and private decks on condominium and apartment buildings, including the door thresholds and deck-to-wall flashing where most leaks start.
• Walkways, breezeways, and stair landings that serve multiple units.
• Plaza decks and rooftop decks over occupied space, including drains, scuppers, and overflows.
• Concrete and plywood decks, new or existing.

Systems we install

We install Westcoat and Life Deck fluid-applied waterproofing systems: a multi-layer, reinforced membrane with a slip-resistant, UV-stable walking surface, available in a range of textures and colors to match community standards. Where a deck needs re-sloping to drain, new sheathing, or new flashing, that work is done first so the membrane has a sound base.

SB 326 and SB 721 inspection repairs

If your inspection report flagged elevated elements, we repair what the report calls for and document it so the association can close out the finding: dry-rot replacement of joists, ledgers, and posts; new deck sheathing and slope correction; flashing at the deck-to-wall intersection; railing post repairs and re-anchoring; stucco, fascia, and soffit repairs at the deck edge; and the waterproofing system over the top. See our SB 326 Balcony Repairs page.

How we handle it for the association

1. We review the inspection report and walk the flagged units with the manager.
2. We provide a per-unit proposal that maps each priced line to the report's unit numbers and findings, with photos.
3. Work is phased by building, with resident notices and access scheduling handled with the manager.
4. During repairs we inspect neighboring units and provide a separate community-wide proposal for any additional deterioration we find.
5. Close-out includes photos of concealed work before it is covered and the documentation your inspector needs to update the report.

Why decks fail

UV exposure breaks down standard sealants; improper flashing or a missing slope-to-drain lets water pool at thresholds; thermal movement opens micro-cracks in rigid coatings; and basic coatings lose elasticity and go brittle. A professional-grade membrane with correct flashing and drainage addresses all four.

Get a repair or waterproofing proposal

Email the inspection report or photos to RFP@meritroof.com, call 949-444-8587, or use our Request a Proposal form. We schedule the walk within two business days.

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