Glossary / covering

covering

The visible outer layer, such as shingles on a roof or cladding on a wall. Class A, B, and C describe a tested assembly, not a bag of covering.

Last verified 2026-08-23. JSON (CC BY 4.0)

Do not use as a synonym: Class A shingles.

Related

• assembly
• class a
• roofing
• astm-e108-ul-790
• Covering versus assembly

Where this term is used

76 guides use this term.

• A Class A rating is not a service-life clock
• Address signs firefighters can find
• Arizona WUI code status
• ASTM E119 versus a WUI wall test
• Bird blocks, boxed soffit, or unvented attic
• Bridges on a fire apparatus road
• Building code upgrade coverage
• California FAIR Plan

All guides →