Exterior renovations in dense urban areas are quietly getting more expensive, and fire-resistance codes are a big reason why.
Cities are tightening fire-safety requirements after a rise in multi structure fires, especially in older neighbourhoods where buildings sit close together. What used to pass inspection five years ago often no longer does today. Materials, spacing, and even design choices are being scrutinized more aggressively.
One major shift is the move away from traditional wood siding. Many municipalities now require non-combustible or fire-rated alternatives like fibre cement, fire-treated wood, or metal cladding for exterior renovations. These materials reduce flame spread, but they also increase material costs and installation complexity.
Another overlooked change is in insulation and sheathing. Fire-resistant barriers and ignition-resistant assemblies are becoming mandatory in certain zones, particularly for renovations near property lines. Homeowners often discover this only after permits are submitted, or worse, during inspection.
For contractors, this means redesigns, delayed timelines, and tougher client conversations. For homeowners, it means budgeting differently and choosing products based on compliance, not just appearance.
The upside? Homes renovated under newer fire codes are safer, more insurable, and often hold value better in high-risk areas.
Are fire-resistance upgrades becoming a deal-breaker, or simply the new cost of building in cities?