Duct drywall penetration

Install flashing integrated with air and water control layers around piping, vents, and other wall penetrations as part of an exterior wall retrofit as follows:. While these elements are needed for functional reasons and to add character and amenity to buildings, they can complicate the continuity of the building enclosure functions, including the air, water, vapor, and thermal control layers. In most walls, a water control layer protects the structure. Water control layers are water-repellent materials building paper, house wrap, sheet membranes, liquid-applied coatings, or taped and sealed rigid insulation boards that are located behind the cladding the siding and are designed and constructed to protect the wall sheathing by from any rain water that might get through the cladding.

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How to Drywall Around Air Conditioning Ducts

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Improving Firestopping for HVAC Duct Penetrations in Fire-Rated Walls

Firestopping non-dampered heating, ventilation, and air-conditioning HVAC duct penetrations in fire-rated walls is more involved than installing that ubiquitous red caulk into the space between the duct and the periphery of the opening. Because of the nature of thin sheet metal ductwork and the physics that come into play during the course of a fire, additional steps are required to ensure that such penetrants are properly protected. Today, a search would yield total systems for HVAC duct penetrations through walls. In just 7 years, the industry has more than 3.
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Building Code and Building Construction - Questions and Answers Or when you want to know how construction is supposed to be done. When you have questions regarding construction and building codes, inspections, or you simply want to know how construction is supposed to be done Return to Mechanical: Heating and cooling equipment, duct work, ventilation and exhaust fans. Users browsing this forum: Google [Bot] and 0 guests. AskCodeMan When you have questions regarding construction and building codes, inspections, or you simply want to know how construction is supposed to be done
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