New houses are much more durable. Modern copper water pipes, for example, will easily last the life of the structure, which certainly can’t be said for the rust-prone galvanized steel pipe found in most older homes. And the “engineered lumber” used in today’s houses — much of it made from mill waste that used to be thrown out or burned — is stronger pound for pound than the solid-sawn lumber used by builders of yore. Even modern glass is better: While the French doors in old houses contain plain glass that shatters into dagger-like shards, the tempered glass required in modern doors crumbles into harmless little granules when broken.