In a message dated 3/9/00 6:52:06 PM Eastern Standard Time, [log in to unmask] writes: > Moisture from the inside is caused by inadequate ventilation I think that the progressive idea that you can build a skin 100% impermeable, for 100% of the life of a structure, to exterior moisture penetration is marketing & sales bullshit tied to the religious belief that missapplied technology, if only it is applied with uninhibited zeal, will save us from ourselves. Water will always find a way to get from outside to inside of a building. It is the same sort of disturbed thinking that leads to the oil marketers promoting the smearing of btiuminous mastic onto parapets and whole sides of buildings. end result -- accelerated decay of masonry. If someone had a corner on the corn cob supply they could just as well talk people into glueing corn cobs to their houses. I have nothing against vinyl, I have nothing against nuclear energy other than zero tolerance... I do have something against missleading bullshit that ends in serious deterioration of the structural elements of buildings, and I am worried about the landfills that will someday be filled with vinyl. The house siding just does not turn into stalagmites very well and does not even have the benefit of glowing under a black light. Now, if they could get Ralph Loren involved I may tone down my opinion. ][<en