SARASOTA -- When you're buying a house, you look it over carefully. You search the roof, the walls, the floors, for flaws. But what about the bottom? If only you could see underneath the house to look ...

A contractor and team of manufacturers tested 15 different methods and mixes for pouring concrete slabs at cold temperatures side by side. Here's what they found. In the course of testing concrete ...

Passive Houses in colder climates are super-insulated, usually with a thick layer of plastic foam under the concrete slab on grade. But a lot of builders want to get away from the use of foamed ...