Insulation R-Value Conversions, Imperial R-value is very very different to Metric R-values. If you come across any tables in the US, sharing R-value performance of materials, use this calculator to convert them to a more recognisable value.
Insulation R-Value Conversions, Imperial R-value is very very different to Metric R-values. If you come across any tables in the US, sharing R-value performance of materials, use this calculator to convert them to a more recognisable value.