As a major distributor of commercial roofing products, RSG-Columbia is your single source for commercial needs. We provide all services and stock everything necessary to complete any roofing system. With an extensive inventory, top-notch service, and over 40 combined years of commercial experience, RSG-Columbia can be your partner for a successful project. Please review the categories below as a guide to commercial materials with more detailed information on corresponding pages.

Complete Systems

Single-ply – TPO, EPDM, PVC BUR MODIFIED COATINGS

Manufacturers

FIRESTONE MANVILLE GAF CERTAINTEED TAMKO KARNAK

HYDROSTOP

Insulation

ISO PERLITE EXPANED POLYSTYREEN(EPS) EXTRUDED POLYSTYRENE FIBERBOARD

Manufacturers

FIRESTONE R-MAX NRG(MANVILLE) GAF ATLAS OWENS CORNING KNIGHT-CELOTEX GEORGIA FOAM DOW

• We stock full tapered insulation systems

Accessories

FASTENERS & PLATES ROOF HATCHES DRAINS SKYLIGHTS VENTS CURBS FLASHING PIPE BOOTS

Manufacturers

OLYMPIC FIRESTONE MANVILLE SFS BILCO PORTALS PLUS MILCOR GAF