> Air recirculation is mostly for well being of the occupants as
> well, since the actual safety is at a level of ventilation far
> below (just as with deflection).
Not true--at least not here. Plenty of cases as I mentioned where
mold intrusion from moisture accumulation has caused serious ongoing
health issues. And carbon monoxide accumulation from appliance
backdrafting kills people. I've been involved in several cases of
this sort and I have a colleague who makes a pretty good living
dealing with moisture and air quality issues in existing homes. Both
of these are the reason I hear civil and structural engineer buddies
as well as misuse of engineered materials tell me flat out they
wouldn't buy a house that was less than 20 years old.
Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw@skypoint.com | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania
1864)
http://www.skypoint.com/members/chrisw/
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