Abstracts – Browse Results

Search or browse again.

Click on the titles below to expand the information about each abstract.
Viewing 6 results ...

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.

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.

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.

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.

  • Type: Journal Article
  • Keywords:
  • ISBN/ISSN: 2398-4708
  • URL: https://doi.org/10.1108/IJBPA-07-2018-0061
  • Abstract:
    Air permeability of ceiling linings is an important element in understanding air and moisture flux from living spaces into the roof cavity. Ideally, these two spaces are decoupled to avoid transportation of moist indoor air into the attic space, where it can lead to condensation on the cold roof cladding. The purpose of this paper is to experimentally characterise the air permeability of a variety of common ceiling types. The results are given as leakage functions. Characteristic leakage data are also given for several ceiling penetrations. A case study illustrates the relevance of these data. Design/methodology/approach A specially designed test facility allows the installation of different ceiling types of up to 38 m2 in area. Laminar flow elements are used to measure the volumetric flow across the ceiling while recording the pressure difference. The experimental data are fitted to the leakage function equation Q =c (ΔP)n. Ceiling penetrations are characterised in a similar way. For the case studies estimating the transport of moisture into the roof cavity, indoor climate data have been obtained using humidity and temperature sensors. Findings Air leakage functions are given for a number of common ceiling linings and ceiling penetrations. These data can be used in simulations aimed at modelling moisture flux into the roof cavities. In the case study, the authors also give indoor climate data of residential dwellings in New Zealand. Originality/value This paper addresses the need for robust ceiling air permeability data in whole-house temperature and moisture transport simulations.