Which of the following weather barrier systems is typically expected to have minimal damage during air testing?

Spray foam, when properly applied and cured, is designed to create a robust air barrier that adheres well to surfaces and provides excellent insulation. This material's properties contribute to its resilience under the stresses of air testing, as it maintains its integrity and does not easily shift or suffer damage. The curing process further enhances its effectiveness by ensuring that the foam expands fully, filling gaps and cracks that might allow air leakage.

In contrast, the other materials listed have varying levels of vulnerability during air testing. For instance, wood paneling and standard drywall might not provide the same airtightness and can be compromised by air pressure changes, leading to damage or compromise of the structural integrity. Plastic sheeting, while often used as a temporary barrier, may not withstand the pressures of air testing as effectively as spray foam and can easily tear or shift, allowing air leaks to occur.

Therefore, spray foam's adherence, insulating properties, and resilience during air pressure testing make it the most reliable choice for maintaining minimal damage during such assessments.