[Default] On Mon, 11 Feb 2013 11:39:26 -0800 (PST), a certain
chimpanzee, Jim K , randomly hit the keyboard and
wrote:

3X2 stud wall "dry lining" cellar, so "one sided" i.e. rear face not boarded over.

Plan on putting 50mm rockwool bats into the wall before pb-ing over.

How do you ensure the insulation says put? and doesn;t fall out "backwards"..

Musings so far are
1) it'll stay there by wedge power alone,

Use a solid board cut to fit snugly. Rockwool do rigid (or rather,
more rigid than cavity batts) insulation, and polyisocyanurate (e.g.,
"Kingspan" or "Celotex", etc.) is rigid, and almost twice as good as
mineral fibre.
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Hugo Nebula
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