Waterproofing and Integration of Exposed Air Handling Unit (AHU) Cladding with the Building Envelope

Large rooftop mechanical equipment, such as air handling units (AHU), can be an important component of a building’s exterior envelope. However, it is critical that the skin of this equipment be designed or constructed with principles similar to the remainder of the building envelope. This presentation will explore successes and failures in AHU cladding and roofing systems. It will also provide guidance for alternative construction techniques that can address specific issues, including removing the equipment from the building envelope.

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