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EPC Energy Performance Certificate Shock Surprise

Our village halls attached house is due to be rented out again and a couple of days ago had a EPC Energy Performance Certificate survey.

Due its form of construction, its a late 1890s Grade II listed building, no cavity walls, no floor insulation etc I was pleased that it achieved a D rating which means that it is OK to rent out, since the current minimum is E for rented property. However I was a little nervous when the surveyor told me that from 2025 the minimum will be C but as a Grade II listed I should be able to get an exemption.

However, the house that my wife rents out scored a D in 2019 and in order to become a C requires, in the suggested order: Floor insulation, Solar Water heating and Photovoltaic panels with a typical expected cost of  £20,000 as per the certificate! I've ignored the sloping ceiling insulation which was Number 1 on the list at £1500, this due to the previous owner converting a utility room into a breakfast room and removing the ceiling and creating a pyramid style ceiling.

The certificate (like all others visible on the UK Gov website) reminds all that the UK average is D.  These rules apparently were from the EU and take into account that the average age of a house is higher in the UK compared with the EU, so theirs have been built on average to a better spec.

Interestingly electric central heating makes the situation worse, my wife's property luckily has had a condensing combi-boiler fitted 2 years ago.  I joked(?) with the surveyor whether an EV charger is good or bad, she was not too sure.  

If you want to check EPCs then go to 

Clive

Parents
  • https://insulation4less.co.uk/blogs/guides-and-news/suspended-timber-floor-insulation

    Normally only when the floor is being re-done, it is major works.

     

    To achieve a U value of 0.25, you would need 90mm of rigid foam or 150mm of mineral wool. You are better off using A semi-rigid material as it can be cut oversized and squeezed between the floor joists, this ensures there are gaps. The insulation needs to be pushed tight to the underside of the floorboards. At least 25mm of the joist must be left exposed to ensure air circulation. This is to prevent the joist from becoming damp and encouraging dry rot. For the same reason, the flow from any airbricks must be left clear to ensure good air circulation.

    more on that ‘change of target by 2030’ thing

    Mike.

     

Reply
  • https://insulation4less.co.uk/blogs/guides-and-news/suspended-timber-floor-insulation

    Normally only when the floor is being re-done, it is major works.

     

    To achieve a U value of 0.25, you would need 90mm of rigid foam or 150mm of mineral wool. You are better off using A semi-rigid material as it can be cut oversized and squeezed between the floor joists, this ensures there are gaps. The insulation needs to be pushed tight to the underside of the floorboards. At least 25mm of the joist must be left exposed to ensure air circulation. This is to prevent the joist from becoming damp and encouraging dry rot. For the same reason, the flow from any airbricks must be left clear to ensure good air circulation.

    more on that ‘change of target by 2030’ thing

    Mike.

     

Children
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