Can Stone Cladding Keep Pace with Canada’s Modular Housing Push?
November 2026 – Written by Dustin South, BIM/Technology Lead
According to this Article on Thegoodbuilder.com, Canada is running a large-scale test of whether government demand can create a modular construction industry. Build Canada Homes launched in September 2025 with $13 billion in initial capital, and its about to begin implementation. The agency favours modular and factory-built construction, and it is using its procurement to give manufacturers the long-term, predictable demand they need to invest. The first six “Direct Build” sites are in Dartmouth, Longueuil, Ottawa, Toronto, Winnipeg and Edmonton, with up to 4,000 homes expected to start construction in the second half of 2026. The largest are Toronto’s Arbo community at Downsview (540 homes) and Ottawa’s Heron site (about 1,100 homes). The agency says modern construction methods can cut build times in half and cut costs by around 20%. Not everyone is convinced, however. The Parliamentary Budget Officer projects only about 26,000 units over five years, roughly 3.7% of the expected housing gap by 2035, and the Fraser Institute warns the agency could crowd out private builders. Either way, the direction is clear: more of Canada’s housing will be built in factories and set in place by crane.
For the facade industry, this raises a practical question: can natural stone, which is durable, non-combustible and long-lasting, work on buildings that are built and shipped in modules? It can, but the details need careful design. Weight comes first. Traditional 3 cm granite cladding weighs about 16–18 lb/ft², and that load affects how modules are framed, lifted and transported. Thin stone veneers bonded to aluminum honeycomb or fibreglass backers can bring that down to about 3–5 lb/ft². Second, factory-installed cladding must handle stresses that site-installed stone never sees, such as road vibration, crane lift movement, and racking as a module is set. That means anchors, kerfs and backing systems should be designed for transport and erection loads, not just service loads. Third, the joints between modules need special attention. Modules are built to tight tolerances but set in the field with real-world variation, so cladding layouts must allow for that movement and still provide continuous rainscreen drainage, air and vapour barrier continuity. Finally, anchor thermal bridging, connection inspection, and whether to install stone in the factory or after the modules are set all must be decided early, because once a module leaves the plant, changes get expensive.
This is where specialist engineering makes a real difference, and where PICCO Engineering can help modular housing succeed. We have spent years designing and engineering stone cladding and anchor systems for projects across Canada, the US and internationally. We work with manufacturers, architects and developers from the earliest design stages to:
select the right stone and backing system for each building
design anchor and connection systems for both transport and in-service loads
detail the critical module-to-module joints
carry out the review and inspection that give owners confidence in long-term performance
Modular construction promises speed and cost savings, but those gains disappear quickly if facades leak, crack or need early repair. By bringing proven stone cladding engineering into the factory process, PICCO can help deliver stone clad buildings that are built to last. Whether it is modular housing or traditional stone cladding, If your team is exploring stone facades on your project, we’d welcome the conversation.
