Скачать или смотреть Roof Install with Passive House Principles: Roof Episode three

At this stage, we're installing the vapor barrier as part of the roofing assembly and using passive house principles to install. The vapor barrier is a critical component designed to control the diffusion of moisture through the building envelope.

By placing it between the insulation and the roof deck, it prevents warm, moist indoor air from migrating into the roof structure, where it could condense and lead to issues like mold growth, material degradation, or reduced thermal efficiency. Proper installation of the vapor barrier ensures long-term durability and energy performance of the roofing system.

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