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chronojosh 09-09-2011 08:51 AM

Bay Window Support Braces
I will be installing a new bay window in an opening that currently has a larged multi-pane window in it alrealdy. My question on this install has to do with how to support the bay window once it is installed. Underneath where this window is, is a cast iron convector set into the wall. There are no cripple studs across the span under the window framing due to the radiator being set back. So how am I supposed to brace the bottom of the bay window if there is nothig the brace it to? Thanks.

oh'mike 09-09-2011 08:55 AM

Most bay windows are actually hung by adjustable cables--attached to the rafter tails--so no support under the window is needed.

Windows on Wash 09-09-2011 09:59 AM

How big is the bay window going to be.

Turn buckles are commonly used to tie in to the rafters as mentioned.

chronojosh 09-09-2011 12:48 PM

The window frame is approximately 5' x 5'. I'm not home so I don't have the exact dimensions. I thought that the turnbuckles may be the case, and that's fine. The window will be under a large eave, so there is plenty of support to tie into, but I thought that you use turnbuckles and supports underneath. Thanks again for the info.

oh'mike 09-09-2011 12:57 PM

The 'supports' under the window are strictly decorative when you use a cable system.

HomeSealed 09-09-2011 12:58 PM

The turnbuckle systems come with vitually all new bay windows. Be careful though, as some manufacturers call for both. I personally don't think both are necessary, but you would not want to void the warranty.

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