Typical To Put Foam Between Wood Bucking And Window Opening ? - General DIY Discussions - DIY Chatroom Home Improvement Forum

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Old 10-10-2009, 10:07 AM   #1
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Typical to put foam between wood bucking and window opening ?

Hey everyone..I am having impact windows installed NOW. THey put the wood bucking all around the frame to square it up. Now there is a 1/4-1/2 gap between the wood bucking and window opening. Should they fill it with a foam ? They told me all they want to do is to caulk it.


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Old 10-10-2009, 10:48 AM   #2
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heydade...for a couple bucks a can why wouldnt they? Low expansion only.


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Old 10-10-2009, 11:59 AM   #3
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I would have them do it. After installing new windows in my house I knew i wanted to insulate that gap but didnt make it a priority. As it started getting colder around Sept - Oct I noticed that one of the windows already started to develop mold in that gap from condensation. After that I quick like a bunny insulated all the windows.

The window instructions said it was ok to use low expansion foam and so I did. Then this year for my last 2 bay window and patio door I used fiberglass batting. I think I prefer the fiberglass as it didnt make a mess like the foam may do if the installer isnt careful, /points to self Either way make sure to have that space insulated.
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