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Cracks on bay window wall after double glazing installed


 
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bloomfieldtj

from United Kingdom

Joined: 13 Feb 2009
Posts: 8
Location: Essex,
United Kingdom

PostPosted: Fri Feb 13, 2009 9:26 pm Reply with quote

We live in a semi-detached house with bay fronted windows upstairs & down (5 window bays). We recently had the old wooden windows replaced with new UPVC ones. The work was done by a reputable company and the bays were fully supported with steel rods during the work. However, I now notice a small hairline crack on either side of the upstairs bay window. running from below the window sill on either first window bay, to the skirting board below. There are no cracks on the downstairs bay, nor anywhere else in the house.

Is this normal after replacement windows? The cracks look quite small and I can't see any cracks on the outside wall.

Any advice would be welcome.

Many thanks.
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alastairreid

from United Kingdom

Joined: 21 Nov 2008
Posts: 4947
Location: Edinburgh,
United Kingdom
Thanked: 631 times

PostPosted: Fri Feb 13, 2009 10:21 pm Reply with quote

i wouldnt worry about it, hairline cracks in plasterwork arent unusual after bay window replacements.

give the new bays some time to settle then widen the cracks a little and fill with decorators caulk, let it set and then give it a light sanding before painting.
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stuart45

from United Kingdom

Joined: 13 Sep 2008
Posts: 1902
Location: Somerset,
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PostPosted: Fri Feb 13, 2009 10:53 pm Reply with quote

There used to be problems with cracking to the upper bay(if built in masonry) when timber bay windows were replaced with plastic to the extent that sometimes the windows would have to be removed and bay poles and steel plates put in.
The better quality modern ones are said to have enough reinforcement to prevent this. As Alastair says some hairline cracks are quite normal.
I know one surveyor who isn't too keen on the idea of replacing timber bays with plastic when the upper bay is built in masonry.
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DavidPeckham

from United Kingdom

Joined: 28 Feb 2012
Posts: 1
Location: United Kingdom

PostPosted: Tue Feb 28, 2012 1:03 pm Reply with quote

alastairreid wrote:
i wouldnt worry about it, hairline cracks in plasterwork arent unusual after bay window replacements.

give the new bays some time to settle then widen the cracks a little and fill with decorators caulk, let it set and then give it a light sanding before painting.


Sorry to bump an old thread but as opposed to just caulking I understand you can chisel the crack out and fit a steel strap across before plastering over. Does anybody know the correct name of these bay window crack-straps (for want of a better phrase!) and where I can get some from. Googled multiple variations and can't find an actual name of them in order to purchase.

Regards
Kevin
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