Typical to put foam between wood bucking and window opening ?

heydade · 10-10-2009, 11:07 AM

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.

12penny · 10-10-2009, 11:48 AM

heydade...for a couple bucks a can why wouldnt they? Low expansion only.

creamaster · 10-10-2009, 12:59 PM

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.

10-10-2009, 11:07 AM	#1
heydade Join Date: Aug 2009 Posts: 24 Rewards Points: 10 View heydade's Album	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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10-10-2009, 11:48 AM	#2
12penny Not so new Join Date: Nov 2008 Location: Lehigh Valley, Pa. Posts: 964 Rewards Points: 522 View 12penny's Album	heydade...for a couple bucks a can why wouldnt they? Low expansion only.

10-10-2009, 12:59 PM	#3
creamaster Member Join Date: May 2008 Location: Rochester, NY Posts: 211 Rewards Points: 156 View creamaster's Album	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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Typical to put foam between wood bucking and window opening ?

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