Hygrothermal Conditions in Ventilated Cathedral Ceilings. Influences on Roof Ventilation and Emissivity. Field Study and Analysis
Paper in proceedings, 2010

© 2010 ASHRAE. Scenarios of the future climate in Scandinavia point to a more humid climate, which will give traditional, well-tried constructions new challenges. Ventilated cathedral ceilings are exposed to the changing weather conditions on the site, and it is important to secure the long-term moisture durability of the construction. Measurements in the airway in two ventilated cathedral ceilings with different roof covering materials were performed during the spring of 2009. The results show a difference in the thermal and moisture performance of the construction. Calculations of the mold growth potential have shown that a roof with black asphalt shingles has a greater risk of being attacked by mold growth than a roof covered with ventilated hot-dip galvanized steel (painted black).


Pär Johansson

Chalmers, Civil and Environmental Engineering, Building Technology

Proceedings of the 11th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings, Clearwater Beach, Florida, December 5-9, 2010

Driving Forces

Sustainable development

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Building Technologies

More information