Advice

Introduced in June 2022, the new approved document Part O has become a fundamental part of the Building Regulations for new domestic properties. There are 2 ways to meet compliance:Simplified methodTM59 Dynamic Thermal ModellingA TM59 calculation is generally carried out when compliance cannot be met via the simplified method. It is a much more detailed calculation

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TM59 Overheating Assessment – What is it?

Advice

The Approved Document Part L for Wales is set to be updated this month. This comes after the updated Approved Document Part L for England came into force in June 2022. When?The Approved Document Part L for Wales is set to come into force in November 2022. Any project registered with building control from 23rd November onwards will be assessed

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Part L Changes – Wales

Advice

The answer is yes – but it is becoming more difficult!This has been a pertinent question, ever since the government announced its intentions to eventually phase out gas boilers.Whilst the new Part L Regulations do not rule out gas boilers, the notional model within SAP will apply a significant Solar PV system & waste water heat recovery system when a

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FAQs – Can I install a gas boiler in new builds still?

Uncategorized

 If your building fails to meet Part O compliance using the simplified method, dynamic thermal modelling is required.Dynamic thermal modelling is able to offer the designer additional flexibility over the simplified method by factoring in additional mitigation measures such as solar shading. It is therefore ideal for buildings with glazed facades or with a high percentage

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Dynamic Thermal Modelling – CIBSE TM59 Calculations

Uncategorized

The simplified method is the first port of call when demonstrating compliance with Part O. This can be applied to both moderate and high-risk locations. The risk category is determined by the location of the dwelling: Moderate risk – England, excluding high risk parts of London High risk – Urban and some suburban parts of

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Part O Simplified Method