Again, from our builders' perspective, I think fundamentally we're agnostic when it comes to material choices. A lot of what is decided is dictated either by code or by affordability concerns. The type of construction that's used has to fit within the pro forma of the project and deliver a quality product at a price the market can support.
On the concrete side of things, insulated concrete forms are a technology that has made a lot of inroads, particularly in basement construction, because they tend to outperform conventional poured concrete foundations. That lowers warranty exposure and callbacks and leaks and so on and so forth.
I think we're seeing innovations across the materials spectrum. The advent of six-storey wood and its acceptance in code gave us a tool that was more affordable for some applications. I think that's why we've seen a rapid uptake of it. I think that if other technologies offered the same benefit, you'd see people....