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Çıdık, M S and Boyd, D (2020) “Shared sense of purposefulness”: a new concept to understand the practice of coordinating design in construction. Construction Management and Economics, 38(01), 18–31.

Ahmad Shazali, A S and Tahar, K N (2019) Virtual 3D model of Canseleri building via close-range photogrammetry implementation. International Journal of Building Pathology and Adaptation, 38(01), 217–27.

Amadi, A and Higham, A P (2019) A cost trajectory to environmentally adaptive building construction in wet humid settings. International Journal of Building Pathology and Adaptation, 38(01), 68–88.

Ashdown, M M, Crawley, J, Biddulph, P, Wingfield, J, Lowe, R and Elwell, C A (2019) Characterising the airtightness of dwellings. International Journal of Building Pathology and Adaptation, 38(01), 89–106.

Brooks, T, Scott, L, Spillane, J P and Hayward, K (2020) Irish construction cross border trade and Brexit: Practitioner perceptions on the periphery of Europe. Construction Management and Economics, 38(01), 71–90.

Brown, N, Wright, A J, Shukla, A and Stuart, G (2010) Longitudinal analysis of energy metering data from non-domestic buildings. Building Research & Information, 38(01), 91.

Crawley, J, Biddulph, P, Wingfield, J, Ashdown, M, Lowe, R and Elwell, C (2019) Inferring the as-built air permeability of new UK dwellings. International Journal of Building Pathology and Adaptation, 38(01), 3–19.

Crosbie, T and Baker, K (2010) Energy-efficiency interventions in housing: learning from the inhabitants. Building Research & Information, 38(01), 9.

Djebbar, K E, Salem, S and Mokhtari, A (2019) Assessment of energy performance using bottom-up method. International Journal of Building Pathology and Adaptation, 38(01), 192–216.

Erkoreka, A, Flores-Abascal, I, Escudero, C, Martin, K, Millan, J A and Sala, J M (2019) Flat roof hygrothermal performance testing and evaluation. International Journal of Building Pathology and Adaptation, 38(01), 148–75.

Firth, S K, Lomas, K J and Wright, A J (2010) Targeting household energy-efficiency measures using sensitivity analysis. Building Research & Information, 38(01), 25–41.

Flood, C and Scott, L (2019) Thermal analysis and post construction verification. International Journal of Building Pathology and Adaptation, 38(01), 51–67.

• Type: Journal Article
• Keywords: Climate change; Retrofit; Hygrothermal analysis; {[}U{]}-values;
• ISBN/ISSN: 2398-4708
• URL: https://doi.org/10.1108/IJBPA-12-2018-0098
• Abstract:
  The residential sector in Ireland accounted for 25 per cent of energy related CO2 emissions in 2016 through burning fossil fuels, a major contributor to climate change. In support of Ireland’s CO2 reduction targets, the existing housing stock could contribute greatly to the reduction of space-heating energy demand through retrofit. Approximately 50 per cent of Ireland’s 2m dwellings pre-date building regulations and are predominantly of cavity and solid wall construction, the performance of which has not been extensively investigated at present. Although commitment to thermal upgrade/retrofit of existing buildings may increase under future government policies, the poor characterisation of actual thermal performance of external walls may hinder the realisation of these targets. Thermal transmittance (U-values) of exterior walls represents a source of uncertainty when estimating the energy performance of dwellings. It has been noted in research that the standard calculation methodology for thermal transmittance should be improved. Implementing current U-value calculation methods may result in misguided retrofit strategies due to the considerable discrepancies between in situ measurements and calculated wall U-values as documented in the case studies carried out in this research. If the method of hygrothermal analysis were to be employed as a replacement for the current standard calculation, it could have significant implications for policy and retrofit decision making. The paper aims to discuss this issue. This research project analysed a case study situated in Dublin, Ireland. The case studies offer an account of the in situ thermal transmittance of exterior walls and link these to hygrothermally simulated comparisons along with more traditional design U-values. The findings of this research identify discrepancies between in situ and design U-values, using measurement, hygrothermal simulation and standard method U-value calculations. The outcomes of the research serve as an introduction to issues emanating from a larger research project in order to encourage researchers to understand and further explore the topic. It has previously been highlighted that moisture content is linked to the increase in thermal conductivity of building materials, thus reducing the thermal effectiveness and increasing the elemental U-value. Therefore, it is vital to implement reliable prediction tools to assess potential thermal performance values. This paper presents the findings of a critical instance case study in Dublin, Ireland in which an existing west facing external wall in a semi-detached dwelling was analysed, simulated and measured to verify the elemental wall assembly and quantify thermal transmittance (U-value) incorporating the major criteria required for building performance simulation.

Gupta, R, Gregg, M and Cherian, R (2019) Developing a new framework to bring consistency and flexibility in evaluating actual building performance. International Journal of Building Pathology and Adaptation, 38(01), 228–55.

Hamidane, H, Ababneh, A, Messabhia, A and Xi, Y (2019) Modeling of chloride penetration in concrete structures under freeze-thaw cycles. International Journal of Building Pathology and Adaptation, 38(01), 127–47.

Ibraheem, Y, Piroozfar, P A, Farr, E R and Ravenscroft, N (2019) Methodological evaluation of Integrated Façade Systems. International Journal of Building Pathology and Adaptation, 38(01), 107–26.

Li, M, Allinson, D and Lomas, K (2019) Estimation of building heat transfer coefficients from in-use data. International Journal of Building Pathology and Adaptation, 38(01), 38–50.

Marsh, R, Larsen, V G and Kragh, M (2010) Housing and energy in Denmark: past, present, and future challenges. Building Research & Information, 38(01), 92–106.

O’Connell, S, Reynders, G, Seri, F, Sterling, R and Keane, M M (2019) A standardised flexibility assessment methodology for demand response. International Journal of Building Pathology and Adaptation, 38(01), 20–37.

Oswald, D (2020) Safety indicators: questioning the quantitative dominance. Construction Management and Economics, 38(01), 11–17.

Ponton, H, Osborne, A, Thompson, N and Greenwood, D (2020) The power of humour to unite and divide: a case study of design coordination meetings in construction. Construction Management and Economics, 38(01), 32–54.

Rogage, K, Clear, A, Alwan, Z, Lawrence, T and Kelly, G (2019) Assessing building performance in residential buildings using BIM and sensor data. International Journal of Building Pathology and Adaptation, 38(01), 176–91.

Shipworth, M, Firth, S K, Gentry, M I, Wright, A J, Shipworth, D T and Lomas, K J (2010) Central heating thermostat settings and timing: building demographics. Building Research & Information, 38(01), 50–69.

Summerfield, A J, Lowe, R J and Oreszczyn, T (2010) Two models for benchmarking UK domestic delivered energy. Building Research & Information, 38(01), 12–24.

Summerfield, A J, Pathan, A, Lowe, R J and Oreszczyn, T (2010) Changes in energy demand from low-energy homes. Building Research & Information, 38(01), 42–9.

Troje, D and Gluch, P (2020) Populating the social realm: new roles arising from social procurement. Construction Management and Economics, 38(01), 55–70.

van den Boomen, M, Spaan, M T J, Shang, Y and Wolfert, A R M (2020) Infrastructure maintenance and replacement optimization under multiple uncertainties and managerial flexibility. Construction Management and Economics, 38(01), 91–107.