FA Exhibit CMP-005

Class A assembly stack vs 'shingle in a bag' (what the rating attaches to)

A labeled roof-covering sample is compared with an exploded roof assembly containing the covering, substrate or thermal barrier, insulation, vapor retarder, and roof deck. An accent bracket indicates that the installed configuration, not only one visible product, must match the tested or listed Class A path. — FA Exhibit CMP-005. Class A assembly stack versus a covering label. AFTER FEMA P-737 §4.1.2 · ASTM E108 PUBLIC SCOPE · PARENT: ROF-100. Illustrative — not a construction document. Verify with your building official. CC BY 4.0.

Technical review: Grayson Graham. Last verified 2026-08-25. JSON

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