Filling big void around UPVC windows

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alip_93

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Hi all. I'm planning on internally insulating the front of our house and have just stripped back the wallpaper and am taking the UPVC surrounds off the double glazing to fill the voids. There is a massive void above the double glazing in the main bedroom (8 inches between glazing and brick). What should I do to fill this? There is also nothing supporting the plaster in these areas so not sure how to go about fixing the insulation boards. Take back the plaster to the brick and put a few more bricks in?

[GALLERY=media, 103898]IMG_20200130_140329 by alip_93 posted 30 Jan 2020 at 2:19 PM[/GALLERY][GALLERY=media, 103897]IMG_20200130_140319 by alip_93 posted 30 Jan 2020 at 2:19 PM[/GALLERY][GALLERY=media, 103896]IMG_20200130_140108 by alip_93 posted 30 Jan 2020 at 2:19 PM[/GALLERY]
 
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you just need some timber infill -its not a big deal

if you can fit the timber and create a thermal break, great, if you cant, its probably no big deal.
 
Notch7 said:
you just need some timber infill -its not a big deal

if you can fit the timber and create a thermal break, great, if you cant, its probably no big deal.
Click to expand...

So fill the void with timber and then can attach the insulated plasterboard to that?
 
A friend suggested I need a lintel in this gap and then use slate to pack up under the brick.
 
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