Summer vs. Winter Solar-Heat Gain and Window Treatments
Climate zone 4a. In the summer, I typically keep my plantation shutters arranged so that direct sunlight does not come into my house, especially in unoccupied rooms. I’ve noticed that it actually does help to reduce the temperatures in those rooms on sunny days.
In the winter, I usually arrange the shutters so that direct sunlight does come into my house to help heat it up a little bit.
My question is: In winter at night and on cloudy days with no sunlight, will closing the plantation shutters provide any meaningful benefit in terms of keeping the cold out (or keeping the heat in)? Letting the sunlight in on sunny days does appear to provide some noticeable heat benefit. Just curious if I should be going around opening my shutters every morning and closing them every evening, or if I can just leave the shutters open 24/7 in the winter.
Thanks for any input.
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