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Case Studies

GacoFlex S20 Silicone Over Mod-Bit Flat Roof Restoration – Delray Oaks Condominiums (FL)

Case History GacoFlex S20 Mod Bit Roof Restoration Delray Oaks FL Photo


Delray Oaks West is a robust condominium community located on the southern edge of Delray Beach, FL. The association is composed of fifty two residential buildings surrounded by beautiful tropical landscaping. Many of the condominium buildings within Delray Oaks had worn out flat mod-bit roofing systems with ponding water and needed repair.

Unique Characteristics:

South Florida experiences rain storms all throughout the year with a higher frequency occurring in the summer. In addition, the Delray Oaks condominium complex has a lot of mature trees, which means rotting leaf litter is a constant threat to building roofs.


The GacoFlex S20 Silicone Roof Coating system was selected for this project because it can be applied to virtually any existing roof to create a durable, glossy, seamless membrane that seals and protects against permanent ponding water, ultraviolet light, severe weather and leaves. Plus, by re-coating the roof the owner could alleviate the need for a time consuming and costly roof tear-off, providing financial savings for the owner and producing the least amount of disturbance to occupants of the condominium community.

Installation Details:

A moisture survey was conducted to evaluate the amount of damage on the roofs. All necessary repair work was performed and then the roofs were washed with GacoWash Concentrated Cleaner and allowed to dry. Then the GacoFlex E5320 2-Part Epoxy Primer/Filler was applied and allowed to dry. Seams and penetrations were then sealed using GacoFlex SF2000 SeamSeal Solvent-Free Silicone Sealant and given ample time to cure. Next, GacoFlex S20 Series Solvent-Free 100% Silicone Coating was installed. As a final step, GacoFlex SF2036 WalkPad Solvent-Free Silicone Walkway System was added to finish off a series of durable monolithic waterproof membranes over the existing roofs.

Alliance Group provided Delray Oaks a 10 Year labor and material leak-free warranty.

Alliance Group – a Florida roofing and general contractor for over 30 years – is a Gaco Western Qualified Applicator.


Location: Delray Beach, FL
Specification: RC-MB-SBUR-22-GF20 (GacoFlex S20 Silicone)
Product Type: Flat Roof Restoration
Contractor: Alliance Group
Problem Solved: Condominium buildings had worn out flat roofing systems with ponding water
Customer: Delray Oaks Condominiums