B BMD Registered User Messages 133 18 Jul 2011 #1 Hi, Can anyone recommend a spec for insulating chimneys (internal and external) for a new build. Should the internal chimney breasts be dry-lined or just slabbed?
Hi, Can anyone recommend a spec for insulating chimneys (internal and external) for a new build. Should the internal chimney breasts be dry-lined or just slabbed?