Have any of the providers of passive slab systems yet got their product(s) BBA (or similar) Certified? When I did my main research a year or so ago I don't remember finding anyone with Certification. If that is the case, what's holding the various companies back? Similar to what has been recently mentioned in a Structural Insurance thread, I've had additional questions raised, or outright knock-backs as my chosen foundation is not "Certified". While any issues raised can generally