I never built a leaky home ever. Refused to do so even ridiculed by building inspectors as a silly old bastard that should move with the times. Its not the builders fault who got talked into building spanish type crap, on wooden frames which is the ultimate sin. Timber must breathe and stay dry. Create a thermos wall where the air pressure cant equalize and it will suck water even uphill. No builder can build to stop that happening. Blame the stupid bastards that insisted we do it, or be like me who warned all and sundry before it happened and face the ridicule. Today the rules make it so expensive with over the top regulations by the same silly buggers that landed you lot in this mess that the young people are forced to live in garages. Any self respecting builder would leave the country and work in Australia where they still build good quality cheap homes that are affordable. Macdunk