DIY Doctor

Adding More Insulation to Cavity Gap Around Window

Postby mikegc » Wed Feb 03, 2016 9:39 am


I am currently doing our bathroom. I have had to take off the window sill which has revealed a thin 25mm of insulation in the cavity in some areas (I am quite surprised there was any!).

I was going to add some more where I can, there is cement sticking out the wall so I can't get much in. I was also going to use foam around the window frame as there is none, and I can feel a draught coming through.

Is there anything I can do to make it better? What would you do?

Thank you!
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Simply Build It

Postby ONLINE INSULATION » Thu Feb 04, 2016 1:28 pm


You could perhaps look at a single extrusion cavity closer. this would help with your thermal bridging.


Online Insulation
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