Resurrecting Cavity wall insulation

Clive · 2008-12-03T09:35:38+00:00

Hi,The post I copied below captures my question and concern about cavitywall insulation exactly.Does anyone know if systematic, long-term research has been done onthe effectiveness and "damp resisting" properties of cavity wallinsulation?I'm guessing if there were significant problems with cavity insulationcausing damp bridges the story would have come out in the press yearsago.I too am worried about this being a one way journey but I feel I haveto do it because the exterior walls in my terrace are freeeeezing. >patrick jView profile More options 26 Mar 2005, 15:17Newsgroups: uk.d-i-yFrom: patrick j Date: Sat, 26 Mar 2005 15:17:20 +0000HelloThis posting is a bit OT as it concerns something which is not DIY butI doknow that there are many here who will be able to answer my questions.I am contemplating getting cavity wall insulation put in to the wallsof my1954 bungalow.I'm wondering if there are likely to be any problems with thisinsulationsuch as increase in damp?The reason I ask is because my understanding of cavity walls is thattheywork because there is a gap, so filling the gap with something seemslike astrange thing to do. If something is put in the gap does this not risktransmission of damp from the outer layer of bricks to the innerlayer?I'm also wondering why cavity wall insulation works? After all thetransmission of heat through the wall is slowed by the gap, so onceagain,does putting something in the gap not just give the heat something totransmit through?As cavity wall insulation has been around for a very long timeobviouslythere are very good reasons for why my fears about it are unfounded,but Iask because putting the insulation in can not be undone, so I wouldlike tobe certain it is a good move.While I'm at it, does the insulation material come in different formsand isthere anything to watch out for when I ask someone to do it for me?Thanks in anticipation.Happy Easter--Patrick

Dec 03, 2008 21 Replies

Rate this thread:

Peter Johnson 17 years ago

200mm top-up on 60 sq metres, delivered, carried up stairs and fitted. Also the cold water tank cover was replaced and loft hatch draftproofed. I couldn't have done it as quickly and I didn't get dirty. I had to turn the radiators down the day after it was installed.

Vote

Mark 17 years ago

That's loft insulation not CWI ;-)

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required