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What are Psi values? A Rough Guide
What are Psi-Values? Psi-values (also known as Ψ-values or psi coefficients) refer to the linear thermal transmittance of a building...
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Photographic Evidence in Part L
The introduction of photographic evidence in Part L of the Building Regulations aimed to provide clearer information on the as-built...
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PART G WATER CALCULATIONS
Over the past few years, Part G Building Regulations have changed for all new homes, extensions and conversions and property owners are...
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Do I need a SAP Calculation for my extension?
SAP calculations are used to calculate and assess the energy efficiency of houses. They are part of the government’s plan to reduce...
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How is the EPC band calculated?
One of the initial steps when deciding to buy or sell a home, is examining its Energy Performance Certificate (EPC). Finding out your...
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As-Built SAP Calculations
An As-Built SAP Calculation is the final stage of the building compliance process and is undertaken once building work has been...
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Design Stage SAP Calculations
Building Regulations dictate that a Design Stage SAP Calculation and Predicted EPC must be submitted to Building Control for new...
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Energy Performance Certificates (EPCs)
All new build commercial and residential properties require a valid Energy Performance Certificate (EPC). The EPC is produced as a result...
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Why do I need a SAP Calculation?
Building Regulations/standards require that a SAP Calculation is carried out before commencing work on a new build dwelling i.e. houses,...
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A guide to Part L of the Building Regulations
Approved document L1 of the Building Regulations places requirements for energy conservation upon domestic buildings. This is split into...
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SAP 10 Analysis of Changes
On 24th July 2018 the Department for Business Energy & Industrial Strategy (BEIS) in conjunction with the technical authors the Building...
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SAP or RdSAP EPC
With the construction of housing on the increase in the UK, DEAs may wish to consider undertaking the On Construction qualification...
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