Fenestration products come in a wide variety of forms, ranging from window units manufactured in a production facility to custom ‘stick-built’ curtain wall products that are assembled in the field.
Controlling the movement of air between the conditioned interior environment of a building and the exterior is a core function of building science. However, if you ask someone the best method of doing this, you are likely to get dozens of different answers.
The fluid-applied air barrier (FAAB) concept was originally a Canadian-developed technology from more than 40 years ago. Back in the early 1970s, the genesis was an adhesive combining air- and vapor-retarding characteristics—eventually, this material would find its way into building codes.