Which Roofing System Is Right for Your Building?
Choosing a roofing system is not just about the material—it also involves performance, budget, durability, and your building’s specific requirements. On this page, you will find the six main systems we install, along with their components, advantages, and maintenance requirements.
If you are unsure, our team can help you choose the best system for your roof.
Roofing Systems
Comparison Chart
| System | Best Choice If You’re Looking For… | Key Feature |
|---|---|---|
| Elastomeric | A versatile, highly watertight system with durable seams | Two-ply membrane with a granulated surface |
| Built-Up Asphalt and Gravel | A cost-effective option with UV protection provided by gravel | Protective gravel surface |
| Monolithic | A seamless solution for concrete surfaces, such as terraces and parking decks | Rubberized asphalt membrane |
| EPDM | An elastic, recyclable membrane for large roof areas | Single-ply membrane |
| TPO | High solar reflectivity for large roof areas | Thermoplastic membrane |
| PVC | A reinforced membrane suitable for roofs exposed to chemicals | Reinforced three-layer membrane |
Note : Durability varies depending on maintenance, exposure, use, and membrane thickness. An inspection will help determine the best option for your building.
Learn More About Each
Roofing System We Install
FAQ
Yes. A white roof reflects more solar radiation than a dark roof, reducing heat buildup inside the building and lowering the demand on air-conditioning systems.
Actual savings vary depending on the roof area, the building’s insulation, occupancy levels, and the existing cooling system. However, the benefits can be especially significant for commercial and industrial buildings.
TPO membranes are generally less expensive to install and provide excellent solar reflectivity due to their naturally white surface. Elastomeric membranes, which are very popular in Quebec, are known for their durability and resistance to temperature fluctuations, mechanical impacts, and freeze-thaw cycles.
Not everywhere. In Montreal, several boroughs require white, reflective, or green roofing for flat-roof replacements and new construction to help reduce the urban heat island effect. However, requirements vary by municipality and borough.
Yes. An inverted roof can be just as watertight as a traditional roofing system. The order of the system’s components is simply reversed: the waterproofing membrane is installed directly on the roof deck, with the insulation placed above it.
This design protects the waterproofing membrane from ultraviolet radiation, temperature fluctuations, and weather exposure. Inverted roofs offer several advantages, including potential savings on installation and project materials.
However, repairs can be more complex because the materials above the membrane must be removed before it can be accessed. Before choosing this type of roofing system, consult an LK Toitures expert.
Municipalities are increasingly adopting regulations governing roof colours for new construction and roof replacement projects. In some areas, building owners are required to install a white roofing membrane because it helps reduce the urban heat island effect and can lower cooling costs during the summer.
Most roofing membrane systems are available with a white finish. An LK Toitures expert can explain the advantages and disadvantages of each option and help you choose the best membrane for your building and budget.
The lifespan of a roofing system depends on the type of membrane, the quality of its installation, the maintenance performed, and its exposure to weather conditions.
As a general rule, the average lifespan of roofing membranes with a proper preventive maintenance program is as follows:
Elastomeric membranes: Approximately 25 years, depending on maintenance, exposure to weather conditions, and activities performed on the roof.
Built-up roofing (asphalt and gravel): Approximately 20 years, depending on maintenance, exposure to weather conditions, and activities performed on the roof.
Single-ply membranes (monolithic, EPDM, TPO, and PVC): Approximately 25 years, depending on maintenance, exposure to weather conditions, and activities performed on the roof.
They chose LK Toitures
Very satisfied with the work done and the service. Your team was friendly, efficient, and professional, with great attention to quality workmanship. No water leaks have been noticed since the initial repairs.
The service was impeccable! Nothing to complain about, my technician had only positive feedback about the service team on-site.
As far as I’m concerned… Quote, appointment, and report after the visit: A-1. Scheduling the work appointment – A-1. As for the day of the work, I received no feedback, so I presume it’s also A-1… If there are any comments, I will let you know. Invoice and report, A-1. Keep it up! (Note: getting your quote report so quickly after Dany’s visit is really awesome!)
A1 service. I haven’t received the service report. I saw the team when they arrived but not when they left.
We were very satisfied with your service and the work done. Your employees were very professional and friendly.
We had excellent communication, and the team on-site seemed very professional and conscientious. I still need to visit the site to inspect the completed work.
Big thanks again for the great work! I really appreciated working with your company. This certainly won’t be the last time we get in touch.
Thank you for your intervention. The work was well done, and the site and parking area were clean as well. I really appreciate it, especially since we had to ask the neighbor for permission to use their parking space. Communication was good, as were customer service and work quality—everything was excellent.
Quality of your work… EXCELLENT
Communication… EXCELLENT
Team… EXCELLENT
Customer service… EXCELLENT
Here are my observations: Outstanding work by Andrew, who was always available and highly attentive to our needs. The team of workers did an excellent job solving our roofing issues. Very happy to work with LK Roofing.
Accreditations
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Licence R.B.Q. : 8103-3979-07
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