Cavity wall insulation extraction
Cavity wall insulation is a fantastic thing, except when it isn't.
This may sound a little contradictory to our operations of installing cavity wall insulation, but we are seeing more and more cases of home owners having problems with cavity wall insulation of various types.
There are many reasons why cavity wall insulation can fail.
There are many reasons why cavity wall insulation can fail:
Incorrect installation from day 1
This can include incorrect densities causing voids and slumping within the cavity. If the material slumps either through too low a density or getting wet which can cause it to slump, these voids can create cold spots that can lead to condensation, damp or mold on the inner walls.
Unsuitable property
For many reasons some properties are not suitable to be installed with and insulation.
These can include extreme weather locations, rubble filled cavity (intended or not), sand in cavity (a lot of west coast properties can have up to 0.3m - 3m of sand in the cavity)
Steel framed
Timber framed
Failed Fin lock gutters
No surface water drainage
Failed or no DPC (or DPC covered with block paving or concrete drive etc)
Vision
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