The Retrofit Loft Insulation Estimating Calculator is used to calculate the labour, materials and plant associated with insulating existing lofts. 

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The Retrofit Loft Insulation Estimating Calculator can be used to calculate the following items:

  • Flat ceiling insulation
  • Rafter insulation
  • Lagging to pipework and water tanks
  • Loft ventilation
  • Plus all labour associated with the above

All of the items required for loft insulation are specified from the Specification.