noun the act of covering with a roof.
2. roofing ·noun hence, the roof itself; figuratively, shelter.
3. roofing ·p.pr. & ·vb.n. of roof.
4. roofing ·noun the materials of which a roof is composed; materials for a roof.
5. roofing ·noun the wedging, as of a horse or car, against the top of an underground passage.