Denver Condominium Tower

Denver Condominium waterproofing replacement and surface upgrade.

Denver Condominium Tower

High-rise condominium

Location

Denver, CO

Summary

Waterproofing replacement and surface upgrade of 2,000-square-foot split-slab balconies over occupied units in a high-rise condominium.

Challenge

The 5th level balconies at this Denver high-rise condominium were constructed using a split-slab system over an occupied living space. Water intrusion was reported in the 4th floor units below, indicating a failure in the existing waterproofing system on the above balconies.

Solution

DCPS addressed the problem by removing the 4-inch concrete topping slab and the failed waterproofing membrane. A fluid-applied membrane was installed on the structural slab, followed by a new pedestal paver system to support surface drainage and ensure long-term durability.

The project began following the disconnection of the irrigation system with the DCPS team removing and temporarily relocating several large planters from the 5th floor balconies. Then, the concrete topping slab was demolished and carefully transported out of the building in manageable sections to minimize disruption.

Once exposed, the existing waterproof membrane was removed from the structural concrete, and the slab was mechanically prepared using grinding and shot blasting. Afterwards, the DCPS team installed a new fluid-applied waterproofing membrane across the full balcony area. Electronic Leak Detection (ELD) testing and third-party inspections were performed to verify waterproofing integrity.

After completing waterproofing, DCPS proceeded with the installation of a drainage composite layer to promote proper water flow and protect the membrane by directing moisture to drainage points.

To complete the project, the irrigation system was restored, and the salvaged planters were returned to their original locations with the help of a pedestal paver system. The finished work resolved the water intrusion issues and provided the residents with a restored outdoor space built for long-term performance.