Thermal bridging and y value calculation in SAP 2009

• Recognising and measuring the individual junctions listed in SAP Table K1, including the difference between the two lintel options.
• What is meant by an ‘identical dwelling’
• What to do when you encounter junctions not listed in SAP Table K1, e.g. exposed upper floors, walls adjoining sheltered spaces (heated and unheated)
• What if your customer is using ACDs for some junctions not others
• When do confidence factors get applied to psi value calculations
• What do if your client gives you psi values they have calculated themselves
• What impact do calculated values have on the DER as compared to  y = 0.08

CPD Hours: 2.5

NHER Member £55 +VAT, Non Member £75 + VAT

Both Part L and SAP changing at the same time means big changes to calculations and procedures. It is important that all qualified On Construction DEAs reach the required competence; otherwise, there could be errors in EPCs and building regulation submissions.

We have been running introductory workshops on the changes in Part L 2010 for some months, for which delegate feedback has been outstandingly positive.  It is very clear from these interactions with delegates that there is a need for more detailed guidance on many aspects of the changes. So, whilst this package of CPD was written with OCDEAs in mind, we are confident that it will be of interest and use to a wide range of individuals looking to learn more about the changes.

About the CPD package

We are releasing a package of at least four online CPD modules and a competency test. These modules cover everything an OCDEA needs to know to prepare themselves for the new regulations. The CPD modules are all high-quality learning, and can be taken from the comfort of your office or home. They will provide OCDEAs the opportunity to complete the minimum CLG requirement of 10 hours CPD per year.

The online training modules contain a mixture of presentations, exercises and quizzes. Topics covered include thermal bridging, thermal mass, cooling, cavity party walls, air permeability, ADL1A, ADL1B, and a number of new conventions for data entry. The majority of the material is additional to that covered in the recent (free to members) SAP 2009, Part L 2010 and FEES seminars and aims to address many questions raised by our members and others.

The Competence test is compulsory for OCDEAs but optional for non-members. It is, however, a useful tool to help establish that the key elements of the learning have been acquired.

There are four modules:

Thermal bridging and y value calculation in SAP 2009

• Recognising and measuring the individual junctions listed in SAP Table K1, including the difference between the two lintel options.
• What is meant by an ‘identical dwelling’
• What to do when you encounter junctions not listed in SAP Table K1, e.g. exposed upper floors, walls adjoining sheltered spaces (heated and unheated)
• What if your customer is using ACDs for some junctions not others
• When do confidence factors get applied to psi value calculations
• What do if your client gives you psi values they have calculated themselves
• What impact do calculated values have on the DER as compared to  y = 0.08

Part L1A, L1B, EPCs and PEAs 2010

• Part L/SAP calculations compared with heat loss measurements on site
• New legal requirement in Part L for Design Submissions
• When can developers not comply with Part L Guidance
• New CLG Part L/SAP conventions for accredited SAP/Part L assessments
• Documentary evidence requirements for U value calculations, boilers etc
• Transitional arrangements clarified by CLG
• Summary of changes to the TER and DER
• Ways of meeting the new TER
• Confidence factors and their relative impact
• A summary of L1B including conservatories, thermal elements and historic buildings

Building Fabric in SAP 2009/Part L 2010

• Cavity party walls – what is meant by ‘sealing’ and ‘filling’; applicability to timber frame and flats
• Thermal bridging – a brief summary of the changes in this key area, with latest information
• Thermal Mass – how to assess whether Low, Medium or High; how to calculate the thermal mass parameter; the impact of thermal mass on the DER at various insulation levels
• U-values - evidence needed for a  U value to be accepted for a Part L assessment
• Air permeability – new conventions for pressure test values
• Fabric Energy Efficiency (FEE)  – what it is and when it’s relevant

Building Services in SAP 2009/Part L 2010

• How mechanical cooling is assessed in SAP 2009 and its impact on DER by region
• How boiler efficiencies change with the new SEDBUK 2009
• Modelling heat pumps and micro CHP via the Products Characteristics Database
• Conventions for when multiple boilers are present
• New heating controls in SAP 2009
• Carbon Compliance Standard – what it is and when it is relevant

If you purchase the package, we will advise you as the other modules become available and they will appear in your NES Learning account for you to complete.

CPD Hours: 10 hours

The CPD package costs £199+VAT for NHER/SAVA members. For non-members, it is £250+VAT.

This module will help ensure that NHER Assessors are applying consistent conventions and producing reliable U-value calculations for walls.

Wall types covered include:

• Masonry - Solid and Cavity with an empty cavity, full fill insulation or partial fill
• Timber frame - Timber studs, Timber studs with cross battens and Timber I studs.

You will draw vertical/horizontal sections for 4 construction types, work out the number of layers, bridges and corrections needed, enter these constructions into a U Value Calculator and compare your results to ours.

It is accompanied by a Q&A session to further test your knowledge. You will need access to the NHER U Value Calculator during the module, an alternative calculator can be used as the principles covered will be the same, although screen layouts will differ.

This module is aimed at OCDEAs, NHER Plan Assessor users and anyone who uses a U Value Calculator. The module is not suitable for DEAs.

CPD Hours: 2.5 hours

The course is £25+VAT for NHER/SAVA members & £35+VAT for non-members.

In this module you will indentify different heat-loss roofs, learn how to interpret specifications for different roof types, and learn about repeating thermal bridges.

You will also learn about corrections to U-value for air gaps, fixings, loft hatches and recessed downlights.

It will also cover conventions for measuring roofs and how to use the NHER U-value calculator for different roof types.

CPD Hours: 2.5 hours

The course is £25+VAT for NHER/SAVA members & £35+VAT for non-members.

This module will help ensure that NHER Assessors are applying consistent conventions and producing reliable U-value calculations for floors.

Floor types covered are ground bearing slabs and suspended floors, including beam and block, concrete plank and timber floors.

This Floors module includes 13 worked examples for you to complete and compare to the correct answers, in addition to summaries of the background theory, key conventions and procedures for correct data entry.

It is accompanied by a Q&A session to further test your knowledge. You will need access to the NHER U-value Calculator during the module; an alternative calculator can be used as the principles covered will be the same, although screen layouts will differ.

This module is aimed at OCDEAs, NHER Plan Assessor users and anyone else who uses a U Value Calculator. The module is not suitable for DEAs.

CPD Hours: 2.5 hours

The course is £25+VAT for NHER/SAVA members & £35+VAT for non-members.

Use of wood as a fuel is on the increase. Why is wood a good fuel to use? How does its use relate to carbon emissions? The course looks at the different appliances that are suitable for burning wood along with their costs and implications.

CPD Hours: 2.5 hours

The course is now half price at £25 +VAT for NHER/SAVA members & £35 +VAT for non-members.