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Community and Q&A

Insulating window treatments?

William Goodwin | Posted in Energy Efficiency and Durability on

Back in the 70s insulating window treatments were a big thing, nowadays I don’t hear much. If convection and condensation can be overcome isn’t this an area where there is a really good bang for the energy saving buck? Anyone have any links, advice?

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Replies

  1. User avater GBA Editor
    Martin Holladay | | #2
  2. User avater
    James Morgan | | #3

    "isn't this an area where there is a really good bang for the energy saving buck?"

    The answer to this is clearly no, if we're looking at whole house energy performance. However, selective use of heavy drapes can certainly improve comfort conditions in living rooms at night. Just as a radiant heat source warms people directly without needing to raise air temperature, large areas of window glass will act as negative radiators, sucking the heat out of nearby humans even when the overall room temperature is adequate. If your furniture layout is such that you are sitting near a large window on a cold night, closing the drapes will help. Just remember to pull them back when you go to bed - counterintuitive, I know - to avoid the condensation and convective effects.

  3. Mee Gan | | #4

    At one point I was also interested in energy efficient blinds. I read online that all types of blinds can be energy saving, but I had my doubts about it. Then I found a product that I have never heard about before. Blinds for double glazed windows. Here is a description of the qualities of these blinds: The blinds fit directly onto the double glazed window without drilling or screwing into the widow frame. This unique blind system enables the blinds to move with the windows or doors when opening and closing, the blind fits into a frame which is attached to the window with brackets which slide between the glass and the rubber glazing bead. The Perfect fit frame fits flush up against the window so there are no gaps down the sides of the blind. This gives greater privacy and also can save on heating bills by retaining heat in winter. Because the blinds sit in the gap between the glass and the window frame as well as being extremely neat they don’t take up any space up on your window sill or have any unsightly cords or controls making it the ideal child safety product. It does mention heat retaining inside and it all sounds great, but a bit over an average budget. What do you think, could this be the ultimate solution?

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