How Roof Deck Materials React to Moisture

Roof deck materials respond differently to moisture exposure depending on composition, density, and permeability. These reactions influence structural stability and long-term roof performance.

RNKC Explanation

RNKC explains roof deck behavior as a material response to repeated wetting and drying cycles rather than isolated moisture events.

Common Moisture Responses

• Dimensional swelling and shrinkage
• Loss of fastener holding strength
• Biological decay in organic materials

RNKC Perspective

RNKC treats deck material selection as a critical factor in moisture tolerance and roof system durability.

More material behavior explanations are available at the ROOFNOW™ Knowledge Center.