HS updates on U-values


Historic Scotland has made available for download its Technical Paper 10, U-values and Traditional Buildings, is now available for online download. Apologies for this email in case this is of no interest to you.

Technical Paper 10 provides the results of a thermal performance study of traditionally constructed building elements. The study focused on U-values as an indicator of thermal performance, and involved their in situ measurements and the subsequent comparison with U-values calculated with software programs, and with often used ‘default’ U-values. The study was carried out from 2007 to 2010 by Dr. Paul Baker, Glasgow Caledonian University. The paper aims at construction professionals and assessors of energy building performance, and will help to make better informed and more balanced decisions when assessing and improving the energy performance of traditional buildings.

For the study, 67 in situ U-values measurements were carried out, mostly of uninsulated solid walls but, for comparison, some cavity walls, and building elements retrofitted with insulation, were also measured. The study found that software programs for U-value calculations tend to overestimate U-values of traditional building elements, and suggests that the in situ measurement of U-value is a useful tool which can aid in the assessment of the thermal performance of traditional building elements.

Download Here: LINK
Historic Scotland Technical Papers: LINK

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