Insulation Under The Bow Window - Windows and Doors - DIY Chatroom Home Improvement Forum

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Old 06-19-2011, 08:04 PM   #1
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Insulation under the bow window

our entire bow window was taken out, frame and all. I noticed there was very little insulation underneath from the original installation. Shouldn't the window installers put insulation underneath as well as the foan on the sides and inbetween the windows? Like regular insulation? Isn't this code?


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Old 06-19-2011, 09:08 PM   #2
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Code? You need to put your location in for that answer---codes vary.

You may need to have some box work built to accommodate more insulation--1 1/2" or 2" foam usually is enough--unless you live far north.---Mike----


New members: Adding your location to your profile helps in many ways.--M--
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Old 06-25-2011, 08:48 AM   #3
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Always a good idea to install insulation at the bottom side.
I install a 1x4 around the bottom of all of the bows and bays I install and then fill the cavity with insulation.
Finish it off as desired.
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