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home : community : tips & techniques : stained glass : stained glass window panels : reinforcing stained glass windows

Reinforcing Stained Glass Windows

Reinforcement is necessary on larger windows. As a rule of thumb, a window more than three square feet should be reinforced. Either reinforcing bar or rod may be used for support. Be sure to consider this when designing the window so that the reinforcement does not intrude or compromise the design of the finished work. In either case the reinforcement is soldered to the back of the panel in one of two ways. The bar should be pre-tinned before use. You will solder the bar in several places at intersecting lines on the window. Rough the areas to be soldered on the bar with steel wool. Apply flux and coat the areas with solder. Doing this will make soldering the bar to the window much easier. Place the bar on edge and solder to the window in the predetermined areas.

When using rod, a length of pre-tinned wire is first soldered at several intersecting lines on the window where the rod will sit. The rod rests on the wire which is twisted around it. Apply a bit of solder to the twisted wire. Solder either end of the rod (or bar) to the edge came. In some cases the rod or bar extends on either side of the panel and is “buried” in the wood casing of the window to provide optimum security. The casing is notched where the bar will fit and filled over to disguise it.

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Delphi-Expert
149 Posts
Top Contributor Gallery Artist
Chandra Agostini
Thursday, July 30, 2015
@kjcarfieldIt should be sufficent if you are running the rebar from horizontally from one side to the other.
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Delphi-Expert
188 Posts
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Jennifer Bonesteel
Thursday, July 30, 2015
@niemanla one piece of rebar through the center should be sufficient to support your piece.
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Gallery Artist Contest Participant
niemanla
Thursday, July 2, 2015
I'm working on a 27" radius half circle panel that will go on the inside of a window flat against the glass. (I can send you a picture of panel pattern in the actual window) The panel will have 3/8" U zinc along the bottom, and 1/8" zinc capping along the circle outer edge. Will a single 1/8" x 1/4" tinned steel rebar placed vertically up the center of the panel be sufficient? I plan to attached the rebar on the front side so the panel can rest flat against the window glass.
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kjcarfield
Tuesday, June 30, 2015
I have finished a semi circle copper foiled project with 225 pieces measuring 64 in X 32 (approx. 11 sq ft). I have framed it with 1/2" U zinc came. I was planning on reinforcing the project using 1/8" steel rebar and 1/3 intervals vertically. Will my project be sufficiently reinforced?
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Delphi-Expert
188 Posts
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Jennifer Bonesteel
Tuesday, January 27, 2015
@Rzwerdling ideally you would use three pieces of rebar - one in the center and two more - one between the center and the top, the other between the center and the bottom.
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Rzwerdling
Monday, January 12, 2015
Currently working on a large round Start of David. it will be about 4 diameter round (Came on perimeter and copper foil on interior What is best way to hang/ reinforce it? might be about 30 lbs? Thank you Ron Z
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Delphi-Expert
188 Posts
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Jennifer Bonesteel
Tuesday, February 25, 2014
@Retired Plumber we would suggest one piece of rebar running horizontally on the 14.5" x 59.5" piece and three pieces, two vertically and one horizontally on the 12" x 81.5" piece.
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Linda R.
Friday, April 12, 2013
I am making a 22" x 10" panel for outside wall, but the window has an overhang and is inset so has limited weather exposure. Is it okay to use foil technique?
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Delphi-Expert
149 Posts
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Chandra Agostini
Wednesday, January 23, 2013
@Tina/Larry It is recommended that you cement first, but bear in mind that you will need to wash with flux remover again after tacking/soldering the reinforcing strip in place in order to prevent any acid flux from sitting on or near the lead/solder joints.
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Tina/Larry
Monday, August 27, 2012
When using a steel reinforcing bar, do you cement first or after the bar is soldered?
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