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Last Post by Mars 3 years ago
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Mars
 Mars
(@editor)
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17/03/2021 9:39 am  

Can we use these blown beads to "top up" areas where we think that the in-wall insulation is not great or does it need to have a fully vacant in-wall cavity?

The reason for asking, is that the previous owners put in foil-backed insulation throughout the house (between the exterior wall and stud wall), but I don't think it's even, especially around windows where we can feel feel the cold. So it would be nice to fill these gaps.

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Morgan
 Morgan
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Topic starter 17/03/2021 9:58 am  

@editor

I think that’s a question for the installation company but I doubt it.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
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 Derek M
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17/03/2021 1:11 pm  

Hi Morgan,

Try the following two links-

https://www.property-care.org/problems-with-cavity-wall-insulation/

https://www.insulation-info.co.uk/cavity-wall-insulation/best-cavity-wall-insulation

Alternatively just google cavity wall insulation.

One thing that you could do is inspect your external walls for any signs of cracks or damage.

I must admit when we had our cavity wall insulation installed I did not fully research the subject.

If I was now considering having it installed I would research the type, get quotes from various companies, and confirm if there was a warranty and what is covered by such a warranty. Does it cover removal if damp problems arise?


   
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Morgan
 Morgan
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Topic starter 17/03/2021 1:50 pm  

@derek-m

@editor I think the above is FYI.

Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.

2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.


   
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 Merrion
(@merrion)
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26/03/2021 10:07 am  

@editor See if you can hire an IR camera (or buy one) and take a set of photos to see where the heat loss is occuring - it may be that some draft and cold bridge patching can suffice?

 

house front
hemp wall

   
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Mars
 Mars
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26/03/2021 10:20 am  

@merrion, that's on my hit list of things to get this summer so that we can embark on the next part of our heating efficiency journey.

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 Merrion
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26/03/2021 11:49 am  

@editor We have insulated with hempcrete and iso-hemp blocks.  More expensive than foil backed foam but as a breatheable/moisture permeable material does not need all the membranes and is better suited to our (no damp proof course 1880s) cottage.  


   
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Mars
 Mars
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09/05/2022 8:50 pm  

Draught proofing of windows done this weekend. Check.

We've tried using an endless amount of products (caulks, silicone, fillers, etc.) to draught proof our windows, and they never seem to last more than a few months before they start to crack. So we've turned to our go to all-in-one product, Maxam's DURA+, to draught proof 29 windows across the property. It's been a winner of a product so far, from sealing our shower to sticking a broken slate step together, so we're optimist it's going to work sealing our windows, keeping draughts out this winter (and the heat in): https://myhomefarm.co.uk/draught-proofing-windows

DURA+ on Amazon: https://amzn.to/3FsDYiQ

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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