Cool Roof Systems; What is the Condensation Risk?
A white roof, or cool roof, is constructed to decrease thermal loads from solar radiation, therefore saving energy by decreasing the cooling demands. Unfortunately, cool roofs with a mechanically attached membrane have shown a higher risk of intermediate condensation in the materials below the membrane in certain climates (Ennis & Kehrer, 2011) and in comparison with similar constructions with a darker exterior surface (Bludau, Zirkelbach, & Kuenzel, 2009). As a consequence, questions have been raised regarding the sustainability and reliability of using cool roof membranes in northern U.S. climate zones.
- Publication Date:
- OSTI Identifier:
- DOE Contract Number:
- Resource Type:
- Resource Relation:
- Conference: 10th Nordic Symposium on Building Physics, Lund, Sweden, 20140615, 20140619
- Research Org:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Org:
- EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
- Country of Publication:
- United States