Brick Parapet Wall and Curb Leak Repair with Fabric-Reinforced Silicone — West Colfax, Lakewood, CO

Project Overview

Roof Condition

A single-story retail building on West Colfax Avenue in Lakewood had chronic leaks along its brick parapet walls and rooftop curbs. The existing wall flashings had separated from the masonry, mortar joints were open, and water was tracking down behind the parapet into the building. Rhino Roofing LLC evaluated the full roof and presented two options: a complete fluid-applied silicone restoration of the entire 12,000 sq ft roof with a 20-year warranty, or a targeted repair of the walls and curbs where the leaks were actually originating. The owner chose the targeted repair.

Evaluation & Approach

The field of the low-slope roof was serviceable. The failures were at the perimeter: roughly 386 linear feet of brick parapet wall, four to five feet tall, with cracked and spalled brick faces, open mortar joints, and metal counterflashing pulling away from the wall. Rooftop curbs had aged sealant and cracked flashing at the base. Water entering at the wall tops and flashing seams was the source of the interior leaks.

Why This Approach

Scope of Work

  1. Pressure Washing: Pressure washed all parapet walls, curbs, and adjacent roof surface to remove dirt, chalk, and loose material.
  2. Curb and Flashing Repair: Applied mastic-grade High Solids silicone to every curb base, flashing seam, and wall transition where existing flashing had failed or separated.
  3. Fabric Reinforcement: Embedded polyester reinforcing fabric across the full face of all parapet walls, wrapping over the wall tops and down into the roof-to-wall transition, approximately 1,800 sq ft.
  4. Silicone Saturation: Saturated the fabric with High Solids silicone to form a seamless, fully bonded, bright-white membrane over the brick.
  5. Cleanup: Cleaned and removed all debris and pressure washed the work area on completion.

Result

Warranty: Rhino Roofing workmanship warranty