walls

[blahheed]

for house cavity wall insulation.
i drilled a hole in the wall only to find the brick is like an outer skin with a gap behind it.
the outside walls have the tell tale signs of having it done and have a certificate from 2001

i thought the balls of insulation was supposed to be behind that and would come out ?

would the structure be breeze blocks or similar for the main walls then the brick to make it look nice ?

[The Artist]

It depends where it is in the building.

From what you have said it sounds like you just drilled through the pretty bricks into a cavity. Yes breeze blocks are part of the main structure.

Insulation isn't always in the form of balls. It is a horrible glass fibre type stuff here.

[mjn51]

older houses had the cavity filled with expanding foam insulation if done after they were built. telltale sign are the holes drilled into which the foam was injected.

HTH
M.

[The Artist]

[blahheed]

i drilled as am putting up a carport, on the gable end of the house about 8 feet high

nothing came out of the hole as you would imagine,
looked like an empty space

[sebastianw]

Sometimes the glue that's supposed to hold the polystyrene balls of mineral fibres together fails and the insulation drops to the bottom of the cavity. How old is the house?

[blahheed]

house is 1970's

[sebastianw]

[t121anf]

my cavity wall insulation is like white cotton wool balls.

same in 2 houses I have had done.

[Steve-D]

Might of used shitty galvanized steel wall ties and had them replaced?
What sort of spacings are the holes in the wall at?
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