I’m building a home in Quebec Canada and I’m having trouble deciding on whether or not I should go with an ICF foundation or just a conventional poured foundation with a Platon membrane and styrofoam insulation on the inside wall (locked onto the concrete with ties at pour time http://www.styrorail.com and drywall is fastened directly to it).
The budget is tight. With ICFs, the cost is roughly $20’000 and I’m over budget but I’d be willing to pay extra for more quality.
The other foundation option is 14’500. That’s a big difference in price.