Specification History

Apply a continuous seal at all seams, cracks, joints, edges, penetrations, and connections of the firewall while applying sufficient pressure to push sealant into any gaps or cracks and contact any backing or infill material required

If firewall assembly is not monolithic (e.g., balloon framing, CMU, open chase, attic bypass, or with similar penetration through the attic floor plane), attic floor plane penetrations within the firewall assembly will be accessed through the firewall, fully sealed, and firewall surface restored to prevent current or future breaches of the firewall below the attic floor plane from establishing an air flow path to the attic space

Fully adhered, airtight, and durable seal