How did houses change after world war 2?

Answer 1

In general houses built after WWII are less sturdy than prewar houses. They are made of inferior materials and less of those materials. Modern building materials are designed to be erected into houses quickly, to hold down expensive labor costs. Drywall is one example. Walls used to made of slats of wood, called laths, nailed diagonally to the wall joists, and over this a skilled laborer called a plasterer applied wall plaster. This took a skilled carpenter and a plasterer. Now a relatively unskilled laborer can hang drywall in much less time, but you can poke holes right through it. Older houses were often built of virgin, close-grained timber, which cannot be bought today at any price. Wood that goes into modern construction is "scientifically" grown pine, bred to grow swiftly, with a large area between the grain that looks like a smorgasboard to termites.