Fixing new windows in double-block cavity wall

Apr 23, 2008 2 Replies

I'm planning buying new PVCu replacement windows and fitting them myself to the existing openings.



The walls are double concrete block with a cavity. The windows are installed within the cavity - between the two walls. I'd like have a clear understanding of how to go about fixing the new windows in place (materials/techniques) *before* going ahead and ordering the windows.



Does anybody know of a website explaining/advising or illustrating how to go about this?



Thanks, Neil


Neil,

Are you aware that if you do this works yourself you will need Building Control approval/inspection before and after the installation so that the necessary certification can be given to you upon payment of a nice, fat fee?

With regards to fitting these in "cavities", there are fixings for this, but you will also need to fit 'add-ons' to the backs of the frame to give you the depth of material to do this without 'loosing' some of the glass area in certain conditions.

Have a look at this

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for some answers (I have not read it in its entirety)

Tanner-'op

no I didn't know that but I suppose I should have guessed. I'd better talk to them then.

Is there a proper name for these fixings - if I knew I could google for them.

Okay - thanks,

Neil

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