There are several different methods of air sealing used in the building envelope, including:
1. Caulking: This involves using a caulk gun to apply a sealant material, such as silicone or latex, to gaps and cracks around windows, doors, pipes, and other building elements.
2. Weatherstripping: This involves installing a strip of material, such as felt, rubber, or foam, around the edges of windows and doors to create a tight seal.
3. Spray foam insulation: This involves spraying a liquid foam insulation material onto walls, ceilings, and floors, which then expands and hardens to create an airtight seal.
4. Vapor barriers: These are materials, such as plastic or foil, that are installed between the interior and exterior walls to prevent moisture from entering the building and causing damage.
5. Gaskets and seals: These are pre-fabricated materials, such as rubber or foam, that are placed between building elements, such as windows and doors, to create an airtight seal.
6. Air barriers: These are materials, such as membranes or coatings, that are applied to the surfaces of walls, ceilings, and floors to create a continuous barrier against air infiltration.
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