The perils of lunchtime daytime tv. Looking at the build method of a bungalow shown partly completed on TV. Newbuild solid single skin blockwork structure due to be externally insulated and rendered - but it didn't look like passive slab base. From visible details it looked like strip foundation with a conventional screeded floor ( might have been slab or beam and block under). By the look of it there are a couple of courses of a different blockwork at the ground transition - some sort of thermal blockwork maybe to offset heat loss at foundation. Standard thermalite? or is there some wonder-product block with better characteristics?