"Most Houses need to last 30 or 50 years" I've never lived in anything that wasn't at least 50 years old and usually at least 200 years old - so that seems ver

"Most Houses need to last 30 or 50 years" I've never lived in anything that wasn't at least 50 years old and usually at least 200 years old - so that seems very odd to me. Mind you, I appreciate different countries and cultures etc. Next you will be saying that roofs need to be replaced every 10 years! ;-)