Oldcastle BuildingEnvelope (OBE), a division of CRH, is the leading supplier of products specified to close the building envelope. They include: custom-engineered curtain wall and window wall, architectural windows, storefront systems, doors, skylights and architectural glass. Oldcastle BuildingEnvelope has a network of over 70 locations and 6,500 employees.
OBE is the North American market leader in:
Glass Fabrication: designing, engineering, testing and manufacturing custom glass products
Glazing Systems: manufacturing the metal framing around the glass
OBE also includes C.R. Laurence Co Inc. (CRL) - the leading supplier to the glazing, architectural, railing, construction, industrial and automotive industries.