Of glass stop convective currents between the panes.Īir at rest providing an added insulation value, that was lacking One of the things that make windows more efficient now is that the two panes Its a big step up from a single paned window. Now we have efficient windows, low U factors & solar heat gain coefficients. Let light in, cold & heat transfered from outside to inside via the glass. Were just an area of the wall with no insulation value. Years ago before efficient windows, the windows Location of supplies are often closer to interior walls than exterior In the newer homes where air tightness & R/U-factors are improved This consensus was formed prior to better efficiency in windows,Īir sealing, and better insulation properties of walls. Supplies that are located close to exterior walls and airĪimed at the windows & exterior walls, generalĬonsensus seems to be that this works best. That have raised the same questions for me. I've often read comments about placement of supplies in ceilings You are accelerating convective currents.Īir at rest has an R-value in accordance with manual J. If you wash the outside walls with warm air from supplies on floor Now that y'all have determined the answer. If you have any problems with the registration process or your account login, please contact support. We suggest not registering using an AT&T, BellSouth, AOL or Yahoo email address.
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