Condominium Sun Deck Waterproofing Renovation
Redondo Beach, CA
Situated next to the beach, this multi-family condominium required a comprehensive renovation of its common area sun deck over living space. The existing fiberglass overlay waterproofing system was failing, leading to water intrusion into the building structure and individual condominium units.
The renovation faced complex challenges due to the deck’s unique substrate, whichconsisted of large concrete panels over a gravel ballast roof system and a combination of structuralconcrete and plywoodwith wood framing. This configuration caused significant movement in the deckfloor assembly, complicating the waterproofing efforts
Substrate Preparation: The large concrete panels were retained and intricately detailed, while large sections of rotted plywood substrate were replaced to ensure a sound surface.
Isolation Membrane Installation: An isolation membrane was placed over both concrete and plywood substrates to accommodate movement and prevent future water intrusion.
Perimeter and Structural Repairs: The perimeter sheet metal flashings and stucco assemblies were replaced, including custom door pans at sliding doors. The sheer wall conditions were also addressed during the stucco repairs.
Waterproofing System: A floating slip-sheet waterproofing system was applied, designed to allow the building structure to move independently from the waterproofing assembly, reducing the impact of movement and preventing cracks.
Drainage Improvement: Polymer modified concrete underlayment was used to slope the deck adequately, ensuring proper pitch and drainage.
Aesthetic and Functional Enhancements: The deck was finished with a smooth textured solid colored surface, and new sliding doors were installed, enhancing both the functionality and appearance of the sun deck
The sun deck renovation not only resolved all water intrusion issues but also transformed the deck into a beautiful and durable outdoor space for residents to enjoy. The tailored solutions ensured that the deck could withstand the structural movements and environmental conditions unique to its beachside location.
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