151 Parkdale Avenue

Project Dates: May 2025 to June 2025

Services Provided: Targeted through-wall flashing installation and localized brick removal and reinstatement

Client

Centretown Citizens Ottawa Corporation (CCOC)

Consultant

Rimkus

Project Type

Masonry Repairs, Metal Flashing Installation

GroupCMG was hired by Rimkus (on behalf of the Centretown Citizen Ottawa Corporation) to complete critical building envelope repairs at 151 Parkdale Avenue. The repairs focused on addressing water infiltration issues, including the removal and replacement of through-wall flashing systems to help control moisture and protect the building from further damage. Our team carefully opened localized sections of the masonry facade to allow for the installation of a new metal drip flashing and Blueskin Through-Wall Flashing (TWF) membrane.

Project Challenges

As a publicly funded and community-focused housing provider, the CCOC emphasized the importance of minimal disruption to tenants while working to address the long-standing building performance issues. Since the older building predates some more modern construction methods, certain components had to be integrated with current materials and techniques in an effective way.

Solutions Implemented

GroupCMG applied its experience in building envelope restoration to execute the work efficiently and to specification using reliable and quality materials:

Targeted Masonry Removals

Removed damaged brick in localized areas to access the inner wall assembly.
Worked in stages to maintain structural integrity and minimize disruption.

TWF System Installation

Installed new custom metal drip flashing (sourced from Ottawa Valley Metal Inc.) and Blueskin TWF membrane (from Preston Hardware).
Ensured proper overlap of membrane over flashing for effective moisture management and protection.

Membrane Integration & Brick Reinstatement

Tied into existing tar paper membrane and installed green mortar netting to allow air flow and drainage behind the new brickwork.
Brick reinstatement was completed with care to ensure alignment, bond pattern continuity, and visual consistency.
Bricks were sourced from Merkley Supply Ltd. to match the existing facade.

Results

The completed repair provides a durable, well-integrated flashing system that prevents future water intrusion and maintains safe, dry, and comfortable housing for residents. With careful planning and skilled execution, GroupCMG delivered the project on time, with minimal disruption, and to the highest standard of building envelope performance.

“In summary, Rimkus is satisfied with the quality of work GroupCMG delivered on this project. The work was carried out per the specifications and design drawings, and there are no outstanding deficiencies to be reported.

— Ikenna Ezeugwu, P.Eng. (Project Consultant, Rimkus)

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Address

69 Peary Way, Kanata, ON

Email

info@groupcmg.ca

Phone

(613) 355-0360