Replacing Purolator Facility Roof

Client: Purolator
Roof Type: Flat Roof
Project Scope: Full removal of an aging 4-ply built-up roof (BUR) across two areas and installation of a new 2-ply self-adhered modified bitumen system featuring a premium torched Soprema cap membrane.

PROJECT OVERVIEW

Industrial Roofing Services Limited was contracted to professionally replace the roof of a large-scale, 20,000-square-foot for a busy Purolator facility. The project encompassed two distinct roof areas that were previously protected by an aging 4-ply built-up roof (BUR) and an older modified bitumen membrane that had reached the end of their serviceable lifespan.

To bring the facility up to modern performance standards, our team performed a complete tear-off to transition the building to a high-performance, 2-ply modified bitumen system. Because the facility serves as an active commercial hub, executing this heavy tear-off and delivering a watertight, durable solution with minimal interference to their daily logistics was our top priority.

WORK COMPLETED

Our team managed the complete replacement across both roof areas, which included:

Complete tear-off and removal of 20,000 sq. ft. of existing heavy 4-ply BUR and modified bitumen materials
Inspection and preparation of the existing structurally sloped roof deck
Installation of new, high-efficiency roof insulation
Application of a new self-adhered modified bitumen base membrane
Installation of a heavy-duty torched Soprema cap sheet membrane
Fabrication and installation of new perimeter sheet metal flashings

New Roofing System Installed

Deck & Drainage: The building featured a structurally sloped roof deck, which naturally facilitates proper water run-off. This eliminated the need for a tapered insulation package, allowing for a highly efficient installation process while maintaining excellent drainage.
Thermal Insulation: New flat insulation boards installed to modernize the building’s thermal performance and energy efficiency.
Base Membrane: A self-adhered modified bitumen membrane, which provides a strong, reliable, and watertight foundation layer.
Cap Membrane: Premium torched Soprema cap sheet applied over the base for ultimate weatherproofing, UV resistance, and commercial-grade longevity.
Edge Details: Brand new custom sheet metal perimeter flashings to ensure all roof edges and structural transitions are securely sealed against high winds and moisture intrusion.

Project Challenges & Solutions

1. Managing a Heavy Tear-Off at an Active Logistics Hub

Purolator facilities require the constant, fast-paced movement of transport vehicles, loading dock operations, and staff. Removing 20,000 square feet of heavy 4-ply built-up roofing generates significant debris. Our team carefully planned it out to ensure the site’s critical logistics operations never experienced a bottleneck.

PROJECT OUTCOME

The Purolator facility is now protected by a premium, 2-ply Soprema modified bitumen roofing system that significantly upgrades the building’s defense against the elements. By leveraging the existing structural slope and transitioning away from a heavy, outdated built-up roof, Industrial Roofing Services Limited delivered a streamlined, highly durable solution.

The newly installed flat roof provides the facility managers with long-term reliability and peace of mind, ensuring that their critical daily operations can continue uninterrupted under a secure, modern, and watertight roof.