DIY Doctor

1930 Appartment Block.Impossible to insulate?

Postby lazens » Thu Nov 29, 2007 2:15 pm

Hi We all live in a 1930s Apartment Block.As it is quite cold in winter we suspect that there is no cavity insulation at all.
It appears to have been heated by Chimneys/Fireplaces before The Clean Air Act of 1952 when these were blocked up.
There is currently no installed structural heating anywhere in the whole building nor any Leagl Requirement to have any apparently!
The Walls are some 80'High and several 100'long.
Can anyone confirm that stuffing insulation wool down this 6"wide 80'gap to the ground past various floors etc is most likely impossible?Even with foam etc????????????
Last edited by lazens on Sun Feb 13, 2011 2:00 am, edited 1 time in total.
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Simply Build It

Postby DONFRAMAC » Fri Nov 30, 2007 2:05 am

It is possible to inject chemicals just above ground level via a line of small bored holes. This used to be a requirement for stone-built old properties, before you could get a mortgage on them. My own home, built in 1958, has a standard cavity-wall, now filled with rock-wool thro' several 4 inch holes, then filled with mortar. The rock-wool even blew up into the loft. Plastic-foam injection is an alternative, but I would take professional advice, as I have heard of some cases of insulation acting as a "wick", making the situation even worse.
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