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wood window frame DG rebate size?


 
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--tom

from United Kingdom

Joined: 08 Mar 2003
Posts: 362
Location: Cornwall,
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PostPosted: Tue Jun 07, 2005 12:12 pm Reply with quote

What would be the ideal rebate size in a wood window frame for a DG unit?
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masona

from United Kingdom

Joined: 05 Jan 2003
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Location: Essex,
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PostPosted: Tue Jun 07, 2005 1:03 pm Reply with quote

Depending on the thickness of the DG unit, example the thickness of the glass and spacer bar.
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--tom

from United Kingdom

Joined: 08 Mar 2003
Posts: 362
Location: Cornwall,
United Kingdom
Thanked: 1 time

PostPosted: Wed Jun 08, 2005 8:59 am Reply with quote

I dont know the thickness Masona, i was just wondering. The height of the rebate isn't the issue but the width of the rebate to give how much room to allow for the sealing beads?
By the way Masona, thanks for all your kind replies to my various questions.
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biffvernon

from United Kingdom

Joined: 17 Jun 2005
Posts: 153
Location: Lincolnshire,
United Kingdom

PostPosted: Fri Jun 17, 2005 6:51 pm Reply with quote

The ideal air gap from the heat insulation point of view is about 16mm. With two sheets of 4mm glass that makes a 24mm unit. Allow 2mm either side for glazing tape and a 12mm bead to hold it all in and you find you need 40mm. In the other direction you need about 12mm to cover up the spacer and its glue. So your rebate needs to be 40mm front to back and 12mm high.
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