SI Construction Systems Ltd. designs and manufactures Polycore™ Building Systems, our own proprietary lines that include Residential Foundations without Concrete, the no-concrete basement RFloor slab, and a number of high efficiency (R28 to R60) above grade insulated wall lines. Since founding the product in 2003, our principals have designed, engineered, and manufactured over 2600 projects installed across six Canadian provinces and seven US states. We offer unique and specific solutions to any project, providing buildings that are Faster, Easier, and Better – often less costly and always less complicated than traditional construction methods can provide.

  • Alberta Based
5 +
North America
  • Fully Engineered for every application to meet all regulatory and building codes
Polycore™ is a proprietary integration of structure and insulation fully engineered to meet the specific requirements of each individual project. By eliminating concrete for residential foundations, basement or on grade slabs, and grade beams, replacing them with highly efficient insulated envelope systems that provide both structure and performance, Polycore™ reduces the carbon footprint of a building to only a few percent of what a traditional build would cause. Builders choose what works, Polycore™ is provided as independent systems that do not require use of every possible Polycore line in a build. Connecting directly to common trusses, joists, windows, decks, and other traditional building materials, Polycore™ fits into any project without the need for specialized add-ons or processes. Simple installation reduces the time and cost of field work for any project, without the need for any specialty manpower or equipment to do so. Polycore™ buildings are highly efficient for lifetimes, saving significant energy, carbon, and costs for multiple owners while providing a more durable, comfortable, and longer lasting livable space over the full term of our 100-year lifespan design target. Designed and produced with a goal of optimal efficiency, steel and EPS used in the manufacture of all Polycore™ systems include always notable and often significant recycled content. Our processes create almost no landfill directed waste during production, and a single garbage bag usually handles all the waste installation might generate at the jobsite. Polycore™ is Faster, Easier, and Better – often for Less.
Residential | New
GBTN05 – North Glenora Multi-Unit Residential Built to Passive House Standards

The T5M Connect Project, located in North Glenora, Edmonton, received partial funding for the incremental costs of building and monitoring an affordable and replicable multi-unit residential infill building (MURB) that will help increase community density to Passive House standards. The goal was to demonstrate the minimization of greenhouse gas consumption through higher efficiency and integrated design techniques. Some of these techniques include maximizing shared walls, utilization of air-source heat pumps, upgraded ventilation and duct system, as well as the integration of a home automation system.

Residential | New
GBTN07 – Multi-generational Passive House with no GHG emissions

Project Leo, located in the community of Balmoral in Calgary, received partial funding for the incremental costs associated with building and monitoring an affordable, replicable, multi-generational infill building. The project was of particular interest because it has the potential to serve as a model for community-dense, low-energy housing designed to Passive House standards, with Net-Zero emissions.

The goal was to show the affordability and sustainability of homes built with integrated design techniques, and with on-site energy generation. Special design features included the maximization of shared walls and mechanical equipment, thereby reducing footprint and cost; air-source heat pumps; upgraded ventilation and duct systems; and an integrated home energy monitoring system.

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