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Urban gallery covering: the solution for Montreal duplexes and triplexes


28 août 2026

Did you know that, according to a study published by the City of Montreal, 38.5% of housing units citywide are located in plex-type buildings—containing two to five units—and that in some boroughs, such as Villeray–Saint-Michel–Parc-Extension, this proportion climbs to 54.1%?


Therefore, a large number of homeowners are looking for an attractive solution for the balconies, patios, and galleries of their buildings. Resistance, durability, aesthetics, and realistic pricing are important factors when choosing the best option.


What type of covering should you choose for the gallery of a Montreal duplex or triplex?

PVC membrane is proving to be an essential choice. In this article, we will describe the specific characteristics of urban plexes and the main reasons why Montreal homeowners choose this product.


Why do Montreal's urban galleries have different needs?

Urban galleries have several unique characteristics worth considering when choosing a product for their renovation or construction.


First, when constructing these buildings, owners aim to maximize space while providing outdoor relaxation areas for users. This results in more limited space, and the galleries of duplexes in certain city neighborhoods, such as Montreal, are often narrower.


Similarly, in some neighborhoods, galleries have non-standard shapes and staircases are installed in unusual ways, all to adapt to the available space.


Second, balconies, staircases, and exterior galleries are often directly exposed to the elements and sun because they are not covered by a roof or awning.


Furthermore, according to the same study cited earlier, “across the city of Montreal, 32.9% of housing units were built before 1946, and 20.3% between 1946 and 1960—meaning that approximately 53% of Montreal’s housing stock dates from before 1961.” This indicates that Montreal buildings are generally quite old and in need of renovation, including practical solutions for cladding exterior balconies and staircases.


Moreover, according to Radio-Canada, “the number of duplexes and triplexes available for purchase in Montreal is decreasing, making this type of property increasingly difficult to acquire, which reinforces the importance of maintaining and improving existing units rather than building new ones.” Hence the need to find suitable and affordable solutions.


One final distinctive feature of these buildings in Montreal is the fact that several galleries are regularly stacked one above the other, requiring careful management of the waterproofing between floors.


Why is PVC membrane particularly well-suited to the Montreal context?

grands immeubles dans le centre-ville de Montéal avec un lumière sur le toit d'un d'un gratte-ciel

Adaptability and Flexibility: Unlike many other materials, PVC membrane can be used on any surface shape. No matter the width of your deck, PVC can be used while enhancing the surrounding appearance. Furthermore, even if the installation of stairs and adjacent elements is non-standard, the PVC membrane can adapt.


Durability: Bestdeck PVC membrane is 100% waterproof and made of UV-resistant materials. So, no matter where your deck is located, you can rest assured that it will be protected for the long term. No more worries or annual repairs.


Aesthetics and Reasonable Costs: Montreal homeowners are constantly looking for solutions to improve the appearance of their aging buildings, effectively and affordably. Our membranes are available in a wide variety of colors and patterns that will enhance the look of your property. Add to that prices that are extremely competitive compared to other materials used for the same type of work.


Waterproofing: The membrane is installed by experienced workers who ensure that there is no water infiltration, thus preserving the integrity of the structure and preventing water from seeping into areas where it shouldn't be.

How much does it cost to re-roof a gallery in Montreal?

The cost of re-roofing an urban gallery in Montreal varies depending on the surface area, the condition of the existing structure, the number of floors, and the complexity of access—that's why Bestdeck offers you a free, personalized quote. Simply contact us today for a no-obligation estimate.


How is PVC membrane installation carried out in a dense urban environment?

Special challenges arise when undertaking construction and renovation work in urban environments. The type of product we install and our methods easily overcome these constraints. Here are some examples of solutions we offer to address some of these obstacles.


  • Limited access and space: The layout of buildings and building codes, which have changed over time, mean that space can be a real headache when carrying out certain projects. The type of product we use and our work methods allow us to operate in a wide variety of installation situations.


  • Coordination with other appartements: Since installing the PVC membrane doesn't require a major construction project, it's easy to coordinate the work between different appartements, even if it takes place over several days.


  • Waste disposal: Urban construction requires tailored waste disposal solutions, which often come at a significant cost. Depending on the type of work involved in your project, there's often less waste to dispose of after installing a PVC membrane than if another product had been used.


Conclusion: Bestdeck, the best choice for Montreal

As you've seen, Bestdeck offers a product that easily adapts to the challenges of urban renovation; Montreal is no exception!


We work closely with teams of professional and experienced installers in the Montreal area who will deliver a final result that meets your expectations.


Contact us today to discuss your project, get answers to your questions and learn more about our product.

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