Hi, I'm looking to replace all my failed DG units. The frames are still in good condition, but the existing sealed units are quite thin at 12mm (3x6x3). The windows have a 15mm external beading, and approximately 2mm of putty on either sides. Basically I have a 31mm rebate to play with.
If I got 24mm sealed units (4x16x4), I would only have 7mm for the beading. Would this be sufficient? Has anyone ever fitted wider sealed units that finish flush and then secured beading over the glass and frame?
Another question I have is regarding fitting. On other posts I have seen double sided security tape used on both sides. Other things I have read suggest butyl putty or tape is better? I have also read that it is critical to add suitable ventilation in the form of drilling holes etc.
Can anyone suggest the strengths and weaknesses of each fitting method? Thanks
If I got 24mm sealed units (4x16x4), I would only have 7mm for the beading. Would this be sufficient? Has anyone ever fitted wider sealed units that finish flush and then secured beading over the glass and frame?
Another question I have is regarding fitting. On other posts I have seen double sided security tape used on both sides. Other things I have read suggest butyl putty or tape is better? I have also read that it is critical to add suitable ventilation in the form of drilling holes etc.
Can anyone suggest the strengths and weaknesses of each fitting method? Thanks