Window reveals

26 Apr 2014
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United Kingdom
I'm looking to plasterboard my external wall in the front room with Spacetherm Aerogel, however the window reveal is very uneven with bricks poorly chopped in half and sticking proud of the internal leaf, the cavity is pretty poor around the window as well so I can't use insulated cavity closers either.

The window is double glazed and the frame is pretty close to where the poorly chopped bricks are

What would be the best way so I can get this insulated plasterboard on the wall without cold bridging

pic 1 Uploads/IMG_20150130_164420.jpg
pic 2 Uploads/IMG_20150130_164241.jpg
pic 3 Uploads/IMG_20150130_164229.jpg
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Thanks, this did cross my mind but i was hoping there may be another way that wouldn't cause too much mess.

any advice on reducing cold bridging ? filling cavity ect ?
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Lining the wall is easy because you have the whole room to fill with foam. Around windows, you have normally a fairly tight fit, i.e. the thickness of the plaster alone right up to the window.
I have sucessfully lined angled window reveals by glueing on a piece of "Aqua panel", which is a cement based board with about 1/2" of foam bonded to it. It still needed skimming. Its very expensive and alternative products are about. If you have brickwork, screwing and plugging would be easier.

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