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Alfred

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  1. do i need to put any vapor barrier on rubber first? or just PIR straight away? do I need to leave some space for air circulation between PIR and cladding?
  2. Hi, I am new to this group. I have a question about insulation to my roof in a loft style room. Please see pictures attached. Any advice what is better to use, 100 PIR or rockwool slab 100? Many thanks. Alfred
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