Roof Replacement on Multi-Level High-Rise Apartment Building in Toronto

2185 Lawrence Multi-unit residential roof replacement in Toronto ON Canada.

Project Specifications

Industry: Multi-unit residential roof replacement
Location: 2185 Lawrence Ave. East,
Dorset Park Neighborhood, Toronto
Project timeline: approximately 4 weeks

Being creative to remove and replace a poorly installed roof

The buyer of this Toronto apartment building may have gotten a rude awakening after we conducted a roof inspection soon after they closed the purchase of the property. As part of the due diligence process before a sale, we recommend a roof inspection so that an estimated useful remaining life can be determined and the roof condition assessed. We visited the building on a windy winter day, only to find what could be best-described as a disaster.

The existing roof membrane consisted of a single-ply EPDM membrane applied over top of a sprayed polyurethane foam roof assembly.  The EPDM membrane was tenting up from gusts of wind. Looking further, not only were previous repairs made using different types of spray foam that were not compatible with the originally installed materials, but the original polyurethane foam was sprayed so unevenly that it created hills and valleys, making it feel like we were walking on the moon! As we conducted the inspection, we wondered how the building had remained relatively watertight. Undeniably, this made our Top 10 List of the worst roofs we have ever worked on.

Client Goal/Purpose of Project

This multi-unit residential roof replacement project was tendered through a roofing consultant. This required us to complete a bid form for a specifically defined scope of work. The specifications included pre-inspection, roof replacement, replacement of the roof walkway, coordination with other trades regarding chimney boiler stack removal, and coordination with the contractor responsible for connections and replacement of the exhaust fan housings. Our bid was selected because of our competitive price, pre-existing relationship with the landlord, quality workmanship, integrity and reliability.

Client Testimonial

Key Challenges

The existing roof membrane consisted of a single-ply EPDM membrane applied over top of a sprayed polyurethane foam roof assembly.  The EPDM membrane was tenting up from gusts of wind. Looking further, not only were previous repairs made using different types of spray foam that were not compatible with the originally installed materials, but the original polyurethane foam was sprayed so unevenly that it created hills and valleys, making it feel like we were walking on the moon! As we conducted the inspection, we wondered how the building had remained relatively watertight. Undeniably, this made our Top 10 List of the worst roofs we have ever worked on.

Outcome

Elite Advantage Solutions: Efficiency, Flexibility, and Coordination  

Timing and Coordination

Our top priority was to get the job done right, with the quality we are known for—with a premium on efficiency to meet the client’s deadline. Our solution required expertise to remove the poorly installed polyurethane insulation, flexibility to accommodate weather, and careful coordination. We chose to work with IKO as the material supplier. We had valuable assistance from Sam Karellas, one of their Technical Sales Representatives, to make sure the system design and method of installation was warranty compliant. There are often site specific considerations that require input from the material manufacturer during a roofing project.

Flexible Project Management for the multi-unit residential roof replacement

Putting a self adhesive layer of vapor retardant in place before installing new materials helped us get the tear off completed and keep the roof watertight with efficiency and high craftsmanship. Creating a watertight seal across the entire roof gave us flexibility to install the new roof system in stages. This process enabled us to concentrate on difficult or problem areas while limiting damage to existing building elements. We created the weather barrier [vapour retardant] by applying a single ply of a self-adhering tri-laminated polyethylene film, self-adhered modified bitumen membrane with an approved primer.

After installing the vapor barrier, the race was on. We needed to install the insulation layers and the modified bitumen SBS protection board with a laminated base sheet. We also needed to do the upper layer, a cap sheet of granular surfaced, torch-adhered SBS modified bitumen.  

Careful Coordination with Teams

We carefully coordinated with other teams for this project. The client scheduled the boiler chimney replacement to begin just before the roof replacement would start. We also carefully scheduled multiple visits by the HVAC company to temporarily disconnect and remove the exhaust fan housings. By doing this, it ensured the timely installation of the membrane and minimal downtime for the hallway fan units.

Safety is Essential for our team during a multi-unit residential roof replacement.

Worker safety is always a prime consideration. The scope of work required extensive wood blocking to be installed at the perimeters to raise the parapet height. For the safest work environment, especially considering the building height, we completed most of the wood blocking before the full crew was mobilized to the site. Once we completed the new wood blocking, we were able to install our perimeter guardrails and leave them in place for the duration of the project. 

Looking for a high-quality roofer for your multi-unit residential roof replacement? Look no further than the Elite Advantage.

In short, the existing insulation and roof were removed correctly, the tight deadline was met, and the new roof was installed to meet the highest quality standards.  

Elite Roofing is all about quality and relationships. For us, it’s not just a matter of price and doing a rush job. It’s about building a relationship with the client, meeting their objectives, and providing the highest quality craftsmanship for a long-lasting roof that performs well throughout its lifetime.

If your Toronto-area high-rise apartment building needs a roof replacement, you can count on Elite Roofing to meet your needs with the highest quality of craftsmanship. Contact us today.