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502.4.3 Sealing of the Building Envelope
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Openings and penetrations in the building envelope shall be sealed with caulking materials or closed with gasketing systems compatible with the construction materials and location. Joints and seams shall be sealed in the same manner or taped or covered with a moisture vapor-permeable wrapping material. Sealing materials spanning joints between construction materials shall allow for expansion and contraction of the construction materials.
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502.4.3 Commercial Energy Efficiency, Sealing of the Building Envelope
Openings and penetrations in the building envelope shall be sealed with caulking materials or closed with gasketing systems compatible ...
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402.4.2 Residential Energy Efficiency, Air Sealing and Insulation
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Breaks or joints in the air barrier are filled or repaired.
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