770	ROOFING
77006  *	Aggregate, Gravel, Marble and Stone Chips, etc. (For Roofs)
77009  *	Asphalt, Roofing
77015  *	Bolts, Clips, Fasteners, etc. (For Sheet Roofing)
77018  *	Cant Strips (Expansion Joint Fillers)
77020  *	Caps, Roofing
77023  *	Cements and Mastics, Roofing
77026  *	Coatings, Roof, All Kinds
77038  *	Felt, Roofing (Rolls)
77041  *	Flashing, Eave Strips, Gravel Guards, Ridge Rolls, Valleys, etc. (Metal)
77042  *	Flashing, Plastic
77045  *	Insulation, Roof, All Kinds
77048  *	Paper, Roofing
77053  *	Primers, Roofing
77056  *	Roofing, Aluminum: Corrugated, V-Crimp, etc.
77059  *	Roofing, Asbestos-Cement: Corrugated, etc.
77060  *	Roofing, Baked Enamel Sheet Steel: Corrugated, V-Crimp, etc.
77062  *	Roofing, Composition: Rolls
77064  *	Roofing, Concrete Tile
77065  *	Roofing, Galvanized Sheet Metal: Corrugated, V-Crimp, etc.
77066  *	Roofing, Malleable Iron
77068  *	Roofing, Plastic and Fiberglass: Corrugated, etc.
77070  *	Roofing Repair Kits
77072  *	Roofing Supplies (Not Otherwise Classified)
77073  *	Roofing, Tin
77074  *	Shingles, Asbestos
77077  *	Shingles, Composition, Asphalt
77078  *	Shingles, Fiberglass
77080  *	Shingles, Metal
77082  *	Shingles, Wood
77083  *	Skylights, All Types
77088  *	Tar, Roofing (Coal Tar Pitch)
77093  *	Waterproofing Membrane and Base Sheet