Pli-Dek® Waterproof Decking Systems
Durable, ICC-Approved Protection for Balconies, Decks & Walkways
Reliable Deck Waterproofing That Lasts
When you need a dependable waterproofing system for plywood decks, balconies, and exterior walkways, Pli-Dek® is a trusted industry standard. Designed for strength, versatility, and long-term protection, Pli-Dek systems form a seamless waterproof barrier that prevents leaks, rot, and costly structural damage.
At Thome Waterproofing, we’re certified installers of Pli-Dek waterproofing systems. We provide complete installation, repair, and maintenance services that keep your property safe, dry, and visually appealing — whether you’re managing a single home, HOA, or large commercial project.
What is the Pli-Dek® System?
The Pli-Dek® system is a fiberglass-reinforced, cementitious waterproofing solution engineered to protect exterior elevated elements (EEE) such as decks, balconies, stairs, and walkways.
It’s known for delivering a seamless finish that’s both durable and attractive while meeting California’s strict building and safety standards, including SB 326 and SB 721 requirements.
Key Features:
- Seamless waterproof barrier for reliable protection
- Slip-resistant surface for safer high-traffic areas
- Decorative textures and finishes to match your design style
- ICC-ES approved and fully code-compliant
Why Choose Pli-Dek®?
- Proven performance backed by decades of use in the industry
- Fully code-compliant for residential, multi-family, and commercial properties
- Excellent defense against leaks, rot, and weather-related damage
- Customizable color and texture finishes for a modern, architectural look
- Low-maintenance system designed for long-lasting durability
Our Pli-Dek® Installation Process
From preparation to finish, our certified installers ensure every detail meets the highest waterproofing standards.
Our process includes:
- Surface Preparation & Repairs – We inspect and prep all surfaces to ensure a strong foundation.
- Professional Installation – We apply each Pli-Dek layer with precision to create a seamless, watertight surface.
- Custom Finishing – Choose from a variety of textures and colors for a clean, decorative look.
- Maintenance & Inspections – Regular inspections and upkeep help extend the life of your waterproofing system.
One-Hour Class A Fire-Rated Deck Coatings
These coatings are designed to limit flame spread and protect structural integrity. The result is a smooth, watertight surface that stands up to UV exposure, moisture, and daily wear in a variety of climates.
Key Features:
- One-Hour Fire Rating (ASTM E119 / UL 263)
- Class A Flame Spread (ASTM E84)
- Waterproof and Slip-Resistant Surface
- ICC-ESR and IAPMO Approved
Protect Your Property with Pli-Dek®
Upgrade your balcony, deck, or walkway with one of the most durable and trusted waterproofing systems available. Whether you’re building new or repairing existing damage, we’ll install it right — the first time.
Contact Us for a Consultation
Why Work With Thome Waterproofing?
- Certified installers of Pli-Dek® waterproofing systems
- Licensed, insured, and fully compliant with California safety codes
- Experienced specialists in waterproofing, inspections, and SB 326/SB 721 compliance
- Serving Los Angeles County & Ventura County
- Trusted by HOAs, property managers, and building owners across Southern California
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