Looking for someone with deep ICF + load calc experience — paid engagement for an independent energy audit review (16,000+ sq ft full-ICF residence)

A homeowner in British Columbia's Okanagan Valley is building an unusually large house — roughly 16,500 to 17,000 square feet, including a basement, main floor, upper floor, three-car garage, and pool mechanical room. What makes it unusual is that the entire building envelope uses ICF (insulated concrete forms, a construction method where concrete is poured into foam blocks that stay in place as insulation) — not just the foundation or walls, but the floor system and roof too. That whole-envelope approach is rare for a home this size.

The project's mechanical engineer has already run the load calculation, the math used to size heating and cooling equipment, and the equipment chosen matches those numbers. Even so, the people behind the project want a second, independent review before moving forward, given the scale of the house and how unusual full-envelope ICF construction is. They're specifically looking for someone with hands-on ICF experience who understands how this construction type behaves differently in energy models — things like the difference between a material's rated insulation value and its real-world performance, the effect of the concrete's thermal mass, and airtightness assumptions, since ICF homes leak air very differently than standard wood-frame houses. This is a paid consulting engagement, not a request for free advice.

For most homeowners, this isn't directly actionable news. It mainly illustrates a good habit: on unusual or high-performance builds, getting a second opinion on energy modeling assumptions can catch mistakes before they become expensive to fix.