Calculation Competency: Conventions and Standards for Thermal Bridging Calculations and Compliance


Organisation profile

Unilin Insulation is an Irish manufacturer committed to supporting the construction industry in the delivery of Low and Zero Carbon buildings.

From design stage to the delivery of ‘A’ rated buildings, the construction professional can rely on the expertise and support of the Unilin Insulation team. It is through the interaction between manufacturers, designers, engineers, builders and energy assessors that together we can formulate strategies to ‘Close the Gap’ between design and actual performance on site.

Training aim

The course will present the parameters used to characterize the thermal bridging of given junctions - with the conventions and standards to calculate them - and the routes to comply with Part L.  

Learning objectives

What is thermal bridging?
Key parameters used to quantified thermal bridging:

 - Thermal bridging factor: Y-value

 - Linear thermal transmittance: Psi-value 

 - Temperature factor: fRSI

Part L 2011 compliance methods

Conventions and standards to calculate Y, Psi and fRSI

Competency schemes in Ireland and UK

Software available

 Case study

Course outline

What is thermal bridging?
Part L 2011 compliance methods
Quantifying thermal bridging: The temperature factor: fRSI, Psi-value and Y-value
Conventions and standards

Case study: detached house

Trainer's profile

Mark Magennis
NSAI and BRE Approved Thermal Modeller
BBA-TIMSA U-value calculation and condensation risk analysis competency scheme certified
Danny Kearney and Phil Ward
BBA-TIMSA U-value calculation and condensation risk analysis competency scheme certified
NSAI BER assessors
Ray Madden
Architectural Technologist
NSAI BER assessor
Emmanuel Bourdin

B. Eng. Chem. Eng., M. Sc. Chemistry, Ph. D. Applied Physics

Course duration

45 minutes + Q&A

Assessment & certification

CPD Hours

Who should attend

Engineers involved in BER assessment, thermal analysis and Energy management of buildings.