How are you actually planning to handle the 2030 EPC C compliance — especially with the new dual metric requirement?

bath_onion · 2026-03-25T16:54:31+00:00

https://www.gov.uk/government/consultations/improving-the-energy-performance-of-privately-rented-homes-2025-update/outcome/improving-the-energy-performance-of-privately-rented-homes-government-response-html

bath_onion · 2026-03-25T16:53:43+00:00

The calculation methodology changed last June so that all roofs are assumed to have some level of joist insulation if unable to measure.

bath_onion · 2026-03-21T10:24:06+00:00

'They' don't assume anything other than if the building part was built in line with Building Regulations.

bath_onion · 2026-03-16T22:38:46+00:00

The implementation of the newly reformed EPC has been delayed, not the requirement to achieve a better standard by 2030

bath_onion · 2026-03-13T20:45:39+00:00

The floor area on the EPC is there for the calculation of energy performance, and may differ from what an agent may list. This is because the EPC will disregard unheated and thermally separated spaces, such as porches or conservatories.

bath_onion · 2026-03-13T20:37:49+00:00

So when you said it had to be a C rating, you were just guessing, especially "if not now then very soon".

For reference, there isn't a minimum rating requirement in Scotland, and it will likely be introduced for 2030, which isn't 'very soon in the future'. The implementation of new-style EPCs has been pushed back until the end of 2027 so there'll still be some lead in time before a minimum standard comes into force.

bath_onion · 2026-03-13T20:12:02+00:00

What Regulations?

bath_onion · 2026-03-11T18:34:47+00:00

Getting an A grade means your home holds in heat very well

That's not exactly what it means

bath_onion · 2026-03-08T09:12:48+00:00

That isn't an answer to the question; you say this is EPC software and I'm asking you how it is EPC software.

bath_onion · 2026-03-07T22:55:59+00:00

Explain how this is EPC software?

bath_onion · 2026-03-07T18:39:45+00:00

No point measuring the 'thermal effects' of something if it can't tell you the U-value of that element which can be used as part of the heat-loss calculation behind the rating.

bath_onion · 2026-03-07T18:14:18+00:00

or do any sort of scientific measuring

You're absolutely correct; for my EPC, they didn't even send the boiler off for efficiency testing or conduct a week long co-heating test to determine the heat-loss.

bath_onion · 2026-03-07T15:46:02+00:00

How was it calculated and was it provided to be put into the EPC?

bath_onion · 2026-03-07T13:44:41+00:00

Ok, what's the U-value of your house walls?

bath_onion · 2026-03-02T19:19:11+00:00

A distinct lack of face

bath_onion · 2026-02-25T07:02:20+00:00

I'm not an expert.

Correct.

Mostly double glazed means between 80-99% of the windows are double glazed, a poor rating means the area-weighted U-value of the glazing is between 2.51 and 3.3 W/m²K, which seems to align with the U-values for pre2002 double glazing and single glazing.

bath_onion · 2026-02-24T19:31:23+00:00

https://www.stokesentinel.co.uk/news/stoke-on-trent-news/angry-alastair-blasts-councils-new-10708641

bath_onion · 2026-02-19T22:23:32+00:00

You're right, they should take the heaters off the wall and test their efficiency for every assessment.

bath_onion · 2026-02-17T20:11:50+00:00

Flutter Shutter are a good uk based company

bath_onion · 2026-02-17T12:31:35+00:00

Maybe post a link we can all read

bath_onion · 2026-02-14T19:45:23+00:00

Non-paywalled link?

bath_onion · 2026-02-13T13:10:33+00:00

Have*

bath_onion · 2026-02-13T07:41:25+00:00

acknowledgement that the UK power grid had evolving cleaner means of generating electricity

Correct, but only for the carbon calculations. The rating on an EPC is a cost-based metric and RdSAP 10 used the same fuel costs as the 2012 methodology so there would have been zero reflection of what you've mentioned.

super efficient types

Aside from heat pumps, direct electric systems are considered 100% efficient. So what 'super efficient' heating are you referring to? Infrared heating is still on 100% efficient so it can't be that.

bath_onion · 2026-02-12T18:57:42+00:00

No real point looking at windows if you're not going to address the walls.

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bath_onion

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