Condensation has confused and frustrated the construction industry for decades. It can occur on visible surfaces or within concealed assemblies, such as wall or roof cavities, and on just about any type of building material.
Selection of fenestration systems for specific wall assemblies is a process in which performance characteristics, such as structural capacity, the resistance to air infiltration, and water penetration, and thermal attributes are evaluated along with aesthetics and cost. However, the integration of the system(s) under consideration with the adjacent exterior wall assembly is often overlooked in the selection process.
The American Architectural Manufacturers Association (AAMA) and the Insulating Glass Manufacturers Alliance (IGMA) are combining into one organization with a new name, Fenestration and Glazing Industry Alliance (FGIA).
Selection of fenestration assemblies (utilizing both window and storefront systems) can be challenging due to the number of ancillary components/accessories available—materials with different performance characteristics compared to the main fenestration element.
To provide personalized temperature control, while maintaining low initial costs and simplified installation, hotels and dormitories often use packaged terminal air conditioning (PTAC) units. However, penetration of façade systems with PTAC units compromised by poor detail design and/or improper installation has led to water infiltration and moisture-related problems.