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Amadi, A I and Higham, A (2019) Putting context to numbers: a geotechnical risk trajectory to cost overrun extremism. Construction Management and Economics, 37(04), 217–37.

Brager, G and Baker, L (2009) Occupant satisfaction in mixed-mode buildings. Building Research & Information, 37(04), 369–80.

Isaacs, N (2019) Evolution of sub-floor moisture management requirements in UK, USA and New Zealand 1600s to 1969. International Journal of Building Pathology and Adaptation, 37(04), 366–94.

Kölsch, P (2019) Hygrothermal simulation of cathedral ceiling roofs with ventilated roofing tiles. International Journal of Building Pathology and Adaptation, 37(04), 473–87.

  • Type: Journal Article
  • Keywords: Air layer; Heat exchange; Hygrothermal simulation; Pitched roofs; Ventilated roofs; WUFI;
  • ISBN/ISSN: 2398-4708
  • URL: https://doi.org/10.1108/IJBPA-06-2018-0049
  • Abstract:
    The surface temperature of the sub-roof beneath the ventilation layer and the tiles is one of the most important factors for the hygrothermal performance of pitched roofs. The air layer between tiles and sub-roof and the air exchange with the outdoor air influence the heat transfer and therefore affect the moisture level inside the roof construction. The paper aims to discuss these issues. Design/methodology/approach This paper provides the results of a research project performed at Fraunhofer-Institute for Building Physics, based on field test results. The investigations analyze the thermal behavior of different vented and ventilated roof constructions. Findings It was found that for a detailed model with roof cladding and ventilated air layer normally too many parameters are unknown. For that reason a simplified approach was set up, especially to consider the radiation exchange between the tiles and the underlay as well as the effects of the ventilation. Originality/value Now, effective surface transfer parameters can substitute both cladding and air layer in the simulation, while the approach still provides a high accordance with the measured values. The paper provides characteristic values for different roofing situations to simulate ventilated roofs by means of hygrothermal simulation in a simplified way.

Kalz, D E, Pfafferott, J, Herkel, S and Wagner, A (2009) Building signatures correlating thermal comfort and low-energy cooling: in-use performance. Building Research & Information, 37(04), 413–32.

Lee, I, Roppel, P, Lawton, M and Ferreira, P (2019) Design limits for framed wall assemblies dependent on material choices for sheathing membranes and exterior insulation. International Journal of Building Pathology and Adaptation, 37(04), 426–47.

Lomas, K J, Cook, M J and Short, C A (2009) Commissioning hybrid advanced naturally ventilated buildings: a US case study. Building Research & Information, 37(04), 397–412.

Loosemore, M and Reid, S (2019) The social procurement practices of tier-one construction contractors in Australia. Construction Management and Economics, 37(04), 183–200.

Nicol, J F, Hacker, J, Spires, B and Davies, H (2009) Suggestion for new approach to overheating diagnostics. Building Research & Information, 37(04), 348–57.

Pelsmakers, S, Vereecken, E, Airaksinen, M and Elwell, C C (2019) Void conditions and potential for mould growth in insulated and uninsulated suspended timber ground floors. International Journal of Building Pathology and Adaptation, 37(04), 395–425.

Pout, C and Hitchin, E R (2009) Future environmental impacts of room air-conditioners in Europe. Building Research & Information, 37(04), 358–68.

Rijal, H B, Humphreys, M A and Nicol, J F (2009) Understanding occupant behaviour: the use of controls in mixed-mode office buildings. Building Research & Information, 37(04), 381–96.

Rose, W (2019) Must attic ventilation be preserved in energy retrofits?. International Journal of Building Pathology and Adaptation, 37(04), 461–72.

Rupp, S H and Plagmann, M (2019) Characterisation of air permeability of common ceiling linings and penetrations. International Journal of Building Pathology and Adaptation, 37(04), 448–60.

Smith, S D (2019) Safety first? Production pressures and the implications on safety and health. Construction Management and Economics, 37(04), 238–42.

Toppinen, A, Sauru, M, Pätäri, S, Lähtinen, K and Tuppura, A (2019) Internal and external factors of competitiveness shaping the future of wooden multistory construction in Finland and Sweden. Construction Management and Economics, 37(04), 201–16.

Tuohy, P (2009) Regulations and robust low-carbon buildings. Building Research & Information, 37(04), 45.