21 Jan '12, 1am

Full filling of Masonry Cavity wall construction with polystyrene blown in insulation beads. YAY or NAY? #green

Hey guys, basically I'm just looking for any opinions on the subject of insulating masonry homes in terms of moisture build up and structural issues (outer and inner leaf of concrete blockwork, with a cavity between, of at least 100mm (4") gap and exterior face usually stuccoed or pebble dashed over this). Here in Ireland, a popular way over the last few years to retrofit homes built of concrete cavity wall construction as mentioned above (built from 1970's onwards) is to insulate between the concrete leafs fully with blown in, bonded EPS beads. I have read some of the articles on this site regarding insulating of the interior side of old solid multi-whyte brick buildings particularly in the northeast of the US in urban areas resulting in structural concerns and moisture damage to the brick facades due to the prevention of drying on the interior by the new insulation. Is t...

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