roofing

nouns

material used to construct a roof
is a type of (narrower)
things needed for doing or making something
"writing materials"; "useful teaching materials"
the craft of a roofer
is derived from
is a part of
the commercial activity involved in repairing old structures or constructing new ones
"their main business is home construction"; "workers in the building trades"
is a type of (narrower)
the skilled practice of a practical occupation
"he learned his trade as an apprentice"