Coquitlam Commercial Flat Roofing
Coquitlam has a varied mix of commercial, strata and multi-family buildings, with flat roofs ranging from relatively new systems to older roofs approaching the point where larger repairs or replacement need to be considered.
One of the challenges for building owners and property managers is knowing how much more should be invested in an existing roof.
A roof with several deficiencies does not necessarily need replacing. Equally, continuing to repair a roof that has reached the end of its practical service life can become expensive.
At Flat Roofing Insights, we bring more than 33 years of flat roofing experience to roof inspections, preventative maintenance, repairs and replacement planning.
Start With the Condition of the Existing Roof
Before deciding whether to repair or replace a flat roof, it is important to understand what condition it is actually in.
Flat Roof Assessment
An inspection should look beyond an individual leak or visible defect and consider the roof as a complete system.
That can include:
- Membrane condition
- Seams and laps
- Parapets and perimeter details
- Roof drains and scuppers
- Curbs and penetrations
- Previous repairs
- Ponding areas
- Flashings and sealants
- Signs of moisture or deterioration
- Condition of accessible insulation and roof components
The findings can then be used to separate immediate repairs from maintenance items and longer-term replacement planning.
Prioritising Flat Roof Repairs
Not every deficiency carries the same level of urgency.
An active leak, open seam or failed flashing may require immediate attention, while other areas may simply need monitoring or inclusion in a planned maintenance programme.
Prioritising repairs allows building owners and property managers to direct available budgets towards the areas that matter most.
It also provides a clearer record of the roof’s condition and how it changes over time.
Extending the Life of a Serviceable Roof
If the existing roofing system remains in reasonable condition, preventative maintenance can often be worthwhile.
Maintenance may include clearing drains, removing accumulated debris, correcting local membrane deficiencies, addressing deteriorated sealants and checking previous repairs.
The purpose is not to suggest that maintenance will make an ageing roof last indefinitely.
It is about protecting a roof that still has useful service life and dealing with manageable problems before they develop into something more significant.
Planning for Flat Roof Replacement
Eventually, every roofing system reaches a point where replacement needs to be considered.
The decision should not be based on roof age alone.
Recurring leaks, widespread deterioration, moisture within the assembly, increasing repair costs and the condition of insulation and other roof components can all influence whether continued maintenance remains practical.
Planning ahead also gives building owners more time to evaluate roofing systems, budgets and project timing instead of making those decisions during an emergency.
Choosing a Replacement Roofing System
A reroof is an opportunity to look at the entire roof assembly rather than simply replacing the visible membrane.
Depending on the building, existing construction and project requirements, options can include:
- SBS modified bitumen
- TPO
- PVC
- EPDM
- Built-up roofing
Consideration should also be given to insulation, drainage, vapour control, roof penetrations, perimeter details and how the building is actually being used.
The best replacement system is not necessarily the same for every building.
Commercial, Strata & Multi-Family Properties
Our Coquitlam flat roofing services are suitable for commercial properties, strata developments, multi-family buildings, retail properties, warehouses and property management portfolios.
Whether the roof requires a few targeted repairs, a planned maintenance programme or complete replacement, understanding its existing condition should come first.
Real Flat Roof Alteration in Coquitlam
Commercial roofs often need to be modified during their service life as mechanical equipment, electrical services and other building systems are upgraded.
This Coquitlam project required the existing roof to be altered to accommodate a new AC unit. Two new sleepers were installed to support the equipment, along with two new curbs to provide properly detailed routes for cables through the roof.
The important part of work like this is making sure the new equipment and services are incorporated into the existing roofing system without creating unnecessary weak points.
Setting Out the New Roof Details
Before any roofing work was started, the locations of the new sleepers and curbs were measured and marked out on the existing roof.
Accurate positioning was important so the new details aligned with the mechanical installation while allowing sufficient room for the roofing work around them.
Locations measured and marked out for new mechanical equipment supports on a commercial roof in Coquitlam.
Preparing the Existing Roof
The roofing membrane was then cut back in the required areas and the existing surface prepared and primed.
This provided a properly prepared area for the new timber supports and roofing details rather than simply installing the new equipment directly over the existing membrane.
Existing roof membrane cut back, prepared and primed for the new equipment supports.
Installing the New Sleepers
New timber sleepers were installed to provide raised support for the new AC equipment.
Raising mechanical equipment on properly constructed supports provides access around the equipment and allows the roofing membrane to be correctly detailed around the new installation.
New timber sleeper installed and ready for the roofing membrane to be completed around the support.
New Service Curbs
Two new curbs were also constructed to provide dedicated routes for the electrical and service cables associated with the new equipment.
Roof penetrations need to be properly planned and waterproofed. Providing purpose-built curbs allows the services to pass through the roof at controlled locations that can be properly incorporated into the roofing system.
New service curbs constructed for cables associated with the mechanical equipment installation.
Completed Roof Alteration
The final stage was completing the membrane and flashing work around the new sleepers and curbs, leaving the roof ready for the mechanical installation.
Completed sleepers and service curbs following the commercial roof alteration in Coquitlam.
Why Roof Alterations Need Proper Roofing Details
Installing new rooftop equipment involves more than simply placing equipment on the roof.
New supports, penetrations and services all have to work with the existing roofing system. Poorly planned alterations can introduce unnecessary penetrations or details that become potential sources of future leaks.
Having the roofing work coordinated with the mechanical installation allows the new equipment to be added while maintaining the integrity of the existing roof.
Need Help With a Flat Roof in Coquitlam?
If you manage or own a commercial, strata or multi-family property in Coquitlam and need help deciding whether a roof should be repaired, maintained or considered for replacement, we can help assess the existing condition and determine the next steps.
Call 778.908.3968
FAQ
How do I know whether my commercial flat roof should be repaired or replaced?
There is no single rule based on age. The overall membrane condition, frequency of leaks, previous repairs, moisture within the roof assembly and cost of continued maintenance should all be considered.
Can preventative maintenance extend the life of a flat roof?
Where the existing roof remains serviceable, regular inspection and maintenance can help. Keeping drainage areas clear and correcting developing deficiencies can protect the roof and provide better information for future replacement planning.
What should be considered when replacing a commercial flat roof?
The existing roof assembly, insulation, drainage, vapour control, penetrations, perimeter details and intended use of the building should all be considered alongside the choice of roofing membrane.
Which flat roofing system is best for a commercial building?
There is no single system that is right for every building. SBS, TPO, PVC and EPDM all have different characteristics. The existing construction, building use, roof design, budget and project requirements should be considered before selecting a system.
