FEBRUARY 2026 consumption for the main residence higher up on the property. Built to Step 4 of the BC Energy Step Code – 40 percent more efficient than the national building code – the project demonstrates Black Diamond Homes’ ability to meet ambitious performance targets while still using practical, proven construction methods. Rather than relying on exotic or experimental materials, Marcus focused on executing conventional systems exceptionally well. Fiberglass insulation, interior poly, and advanced exterior air barriers were combined with careful detailing and close coordination with trades. Blower door testing confirmed the home’s airtightness, approaching passive-house levels without the cost premiums typically associated with that standard. “We try to use materials builders already understand,” Marcus explains. “It’s about how well you use them, not just what you use.” That philosophy extends beyond energy efficiency into every aspect of Black Diamond Homes’ operations. Marcus believes many of the conflicts between builders and clients stem from poor communication, rushed planning, and a lack of accountability. To address this, the company invests heavily in pre-construction planning – often six to ten months – before a shovel ever hits the ground. This upfront effort allows potential issues to be resolved on paper rather than on site, reducing stress for everyone involved. Trades arrive to jobs that are ready for them, schedules are respected,
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