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Ensuring Proper Installation of Self-Adhered Underlayment Over Full Decks with Unvented Attics
Understanding the Importance of Proper Installation Self-adhered underlayments play a crucial role in roofing systems by providing a waterproof layer and sealing around fastener penetrations from mechanically fastened underlayment. However, when applied incorrectly, particularly over full decks with unvented attics, these materials can cause significant moisture-related issues. Key Issues with Unvented Attics When self-adhered underlayment…