jeudi 23 septembre 2010

Newspapers in the walls

It had to happen one day ...

To discover during one of our end-of-afternoon visit that the house has evolved from a "pile of planks" to the isolated envelope, able to ensure the comfort of its future inhabitants against the rigors of the climate!

In great secrecy, hidden from our eyes by our days busy with our professional duties, some skilled workers have worked to fill the cavities of our walls (and ceilings) ... with some m3 of the now famous "cellulose wool".

A short reminder for those who are not following my explanations ;-): it is made of recycled paper, crushed, mixed with a pinch of boron salt (harmless natural salts, which acts as flame suppressants, anti-insect and -rodent), and which is blown into the walls.
Very good insulating ability, very good "thermal storage" capability , really green, carbon neutral, ... I have not found better stuff for our home.

A small hole at the top of the cavity, a machine to blow this kind of foam, a density control to to prevent that it packs too much over time, the wood washer is put back in position, a big tappet to maintain it pending the final layer of  "gyps-board", ... and voila.



On this view, you see the multiple injection points, behind the green tape at the top of each wall cavities.


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