Aecom Energy Saving Study for Guardian Warm Roofs

Aecom modelled a typical house with a standard ‘Victorian‘ 12′ x 12’ conservatory.

The conservatory was northward projecting with an electric heating system. A future energy price forecasts was accounted for under the “Green Stimulus” price forecast that yielded a saving of £5,447 after 25 years.

The key conclusion drawn from this evaluation is that the greatest benefits from installing the “Guardian” roof are made when it is retrofitted, as a result of the greater difference between the U-values of the original roof and the new roof type.

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