Project #150 | Commercial – Multi-residential, Newport Beach, CA

Project: Corsica Villas Multi-residential Decks, Newport Beach, CA


This commercial property situated in the desirable Back Bay area near Fashion Island was in need of some maintenance. Since wrought iron railings are typically not suitable for salty, coastal areas and can easily rust, it was evident that the wrought iron railings needed to be replaced on all 37 decks.

The deck surfaces were a common liquid applied system (polyurethane and sand) that require yearly reapplication to avoid falling prey to water damage. While the building maintenance management had stayed on top of the reapplication of this liquid coating system, the flashing details around the deck perimeters had become soft and were lifting.

Both the lifting flashing and the weathered, vulnerable railings made the decks unsightly and unsafe.


Duradek Durarail Systems Inc. removed the deteriorated railings and prepared the substrate by sanding and cleaning. Then they applied Duradek Ultra Tiledek to completely waterproof the deck structure and protect the living area below.

The troublesome perimeter flashing details that are so vulnerable to the high salt content in the coastal air was effectively solved by using Duradek’s PVC coated flashing, enabling the flashing to be heat welded directly to the Tiledek membrane. The Tiledek then received an acrylic hydraulic setting fortified cement overlay with a spatter coat, and knock-down texture was applied.

The deteriorated wrought iron railing was replaced with Durarail black picket powder coated aluminum railing with custom details. Its durability and 20 year limited warranty is the perfect solution for the salty air.


Originally, Duradek Durarail Systems Inc. was only asked to quote on the replacement of the railing system, however the issue of taking off old railing and installing new could create a waterproofing issue if separate contractors were responsible for each phase. It also complicates the warranty by having more than one contractor responsible for the deck. Duradek Durarail Systems was able to convey to the owners that using one contractor, one supplier and one warranty was the best way to protect their investment and they were awarded the contract for both railings and deck waterproofing.

View or download the .pdf version of Case History #150 for the complete case history with installer details and before and images.

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