While the Ber assessment process is intended to be scientific, in reality the calculations are based on a combination of 'assumptions' and 'opinions'. Photograph: Getty Images/Westend61
Your reply to a query on Ber ratings on January 13th last (I had a new boiler installed but my home’s Ber rating has gone down. How can this be?) prompted me to contact you, in the hope you can shed light on my own Ber rating.
In 1998, I bought my three-bed detached house. It was built originally in 1960 with solid blocks and had an old Aga that had been converted to oil. The house was very cold.
In 2002 we had the internal surfaces of all the exterior walls drylined with 2in-thick panels, and most of the windows double-glazed. The attic tanks were insulated (50mm fibreglass) and the pipes were clad. A sunroom (14ft x 12ft) was built on to the rear of the house with 50mm wall and floor insulation, along with a pitched roof.
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