Originally Posted by
mark beiser
Whatever are you talking about?
What is wrong with knee walls exposed to the attic with only R-11 batts and wall studs exposed to the attic, unsealed floor truss ends allowing attic air to circulate between the floors, unsealed duct chases open to the attic, unsealed/uninsulated pull down attic stairs in the conditioned space, black composition roof shingles, 30+ non air tight light fixtures, indifferently air sealed R4 insulated ducts and air handling equipment located in the attic, and 2 or 3 powered attic ventilators?
Oh, since you put it THAT way...nothing at all!
Psychrometrics: the very foundation of HVAC. A comfort troubleshooter's best friend.