Drafty windows in old house


Old 11-20-18, 05:57 PM
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Drafty windows in old house

I bought a 1920s house wwit original windows. I can feel a draft coming from the sides of the window frame and there is about a pinky finger size gap on the side of the windows. I am not sure if I can caulk this gap or use spray foam from the inside or if I should do it from the outside. Any tips or ideas appreciated.
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Old 11-20-18, 05:59 PM
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Not if you ever want them to open.

and personally, I think there should be a 30 day waiting period for people to buy expanding foam.
Old 11-20-18, 06:26 PM
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30 day waiting period for people to buy expanding foam.
Couldn't agree more.

To the OP...Do you plan on restoring this home? For the current season use fiberglass bat insulation to gap the holes and then use 3M or Frost King window film to help keep out the cold. In the meantime decide what you want to do to this house.
Old 11-20-18, 11:19 PM
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Please post a picture so we can see what your seeing, there should only be tiny gaps around the sashes.
The only way you would see a gap that big is if the trim was removed.
Houses that old are always going to drafty until a lot of work gets done.
Installing replacement windows and removing the side trim so that huge empty space where the weights are now and insulating would cut down your heating and cooling cost by as much as 25%.
A house that old is also likely balloon framed so the cold air can be drawn in through the basement all the way to the attic unless it's been fire blocked at the top and bottom of the walls and may not even have insulation in the walls.
Also check how much insulation is in the attic.

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