EXT wrote:
Warning that insulating blinds in a winter climate will keep some of
the heat in but they will allow the glass to cool down to below the
dew point. The blinds will not stop moisture in the air from
migrating to the glass and condensing. The result can be water or ice
on the glass and water below the window, in the wall and on the floor
resulting in damage and/or moulds and possibly some rot...

Yup. And in the summer, you get a far better result from preventing the sun
from hitting the glass and creating the radiant heat load in the first
place.

--
Dave
www.davebbq.com