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A vegetated rooftop is one of the most effective ways to reduce energy consumption, manage stormwater runoff, and reclaim outdoor space on a flat roof in an urban environment. With over 10 years of experience in rooftop landscaping and a track record serving commercial, industrial, and residential clients across Quebec and the Outaouais region, S.B.P Construction
brings proven expertise to every green roof in Ottawa
project we take on. Our family-run team guides you from structural assessment through seasonal plant establishment, so your rooftop investment performs from the first growing season onward.
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Why install a green roof in Ottawa — what are the real advantages for your property?
Ottawa's continental climate, with its hot dry summers and very cold winters, is particularly suited to extensive green roof systems
planted with sedum varieties that resist both drought and deep freeze, requiring minimal ongoing maintenance once established. A green roof in Ottawa
creates a natural insulating layer that can meaningfully reduce heating demand in winter and cooling loads in summer, lowering your energy bills year after year. Beyond energy performance, a vegetated roof absorbs a significant share of rainwater on-site, reducing the volume of runoff that strains municipal stormwater infrastructure during heavy rainfall events. Learn how we approach green roof installations
in the Montreal region using the same proven methods we bring to Ottawa projects.
What is the difference between an extensive, semi-intensive, and intensive green roof?
The right system for your building depends on the load-bearing capacity of your existing roof structure and the level of use you envision for the space. An extensive green roof in Ottawa
uses a lightweight growing medium of 7 to 15 cm and low-maintenance sedums, making it suitable for most flat roofs without structural reinforcement, while a semi-intensive or intensive system supports grasses, perennials, or even shrubs at a greater substrate depth and weight. To understand which approach fits your building, explore our complete green roof installation service, where we walk through each system type and what it requires structurally.
What maintenance does a green roof in Ottawa require after installation?
Once your green roof in Ottawa
is established, our seasonal follow-up service covers the annual checks that protect your investment over the long term: spring inspection of drainage layers and root barriers, fertilization of the growing medium, removal of invasive species, and preparation of the substrate before winter. We offer a structured seasonal maintenance program designed specifically for the Ottawa and Outaouais climate, where freeze-thaw cycles and spring snowmelt put particular stress on waterproofing membranes and drainage components. Property owners in the broader region can also learn about our green roof services
in Gatineau and the Outaouais, which share many of the same climatic considerations as Ottawa.
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Greenroof Ottawa services : what S.B.P Construction delivers from assessment to handover
Every successful rooftop greening project combines the right system components with precise installation and a clear understanding of your building's structural profile. Here is what our team brings to each project we complete.
- Structural load assessment : Before any substrate or plant layer is specified, we evaluate your existing roof structure to confirm it can support the chosen system safely and without modification or with targeted reinforcement where needed.
- Waterproofing membrane inspection and protection: We assess the condition of your current membrane and install a root-resistant barrier layer that prevents vegetation roots from compromising your roof's watertight integrity over the long term.
- Drainage layer and filter fabric installation: Our crews lay a properly sized drainage course topped with geotextile filter fabric to manage water flow, prevent substrate migration, and protect the membrane from hydrostatic pressure.
- Substrate specification and installation: We select and place a growing medium calibrated for weight, porosity, and nutrient retention to match the plant palette and climate conditions specific to your project.
- One-year installation warranty: Every green roof installation we complete is backed by our one-year warranty, giving property owners and building managers documented assurance that the system was built to perform.
Ready to turn your rooftop into a living, high-performing green space?
S.B.P Construction is a family business built on hands-on rooftop landscaping experience accumulated across Quebec and the Outaouais region, and we bring that accumulated knowledge to every greenroof in Ottawa
project we install. Each layer we place — from the root barrier through to the finished substrate — reflects a deliberate process designed to protect your membrane, control stormwater, and reduce your building's energy footprint through every Ottawa season. Explore our project intake process and request your free quote to get the conversation started with our team today.
Start your green roof installation with a free site assessment
