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PIR Fixing Help - Vaulted Ceiling

richo106
in Heat Insulation

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  • Author
52 minutes ago, Iceverge said:

 

Good to hear. Yes seal it to the blockwork. 

 

Tape won't work unless you prime it. 

 

I have bought Contega Solido SL Tape (80mm) with the tescon sprimer to seal to the block work

 

 

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  • Iceverge
    Iceverge

    Running some quick costs on this. ( All from insulation4less)    Take 3 examples. All the same U value. Decrement delay ( for heat protection) is worst with all PIR at 7 hrs and best with fu

  • Iceverge
    Iceverge

    Your current proposal.  I'll be ghrd to fit PIR between rafters and lots of foaming and waste. Long term my confidence I don't have much confidence in PIR not to shrink and leave gaps between the raft

  • Thorfun
    Thorfun

    way too late for me! there's no way i'm taking mine all down and replacing them. 😂

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