Dear Jim: I am thinking of building one of those concrete/foam block houses for efficiency, security and strength. Since concrete feels so cold, is it really energy efficient and will I be limited ...

SEATTLE -- Giant blocks of foam are being used in construction projects ... exit if they don't want to take the new tunnel. The large white blocks - known as expanded polystyrene, according ...

The company creates large blocks of foam, which are made up of 98% air, that can be shaped and glued together to create the skeleton of the home. Pieces of foam are glued together using a type of ...