SIG plc is a United Kingdom-based distributor of building products in Europe. The Company is engaged in the supply of specialist products to construction and related markets. It operates in two segments: UK & Ireland and Mainland Europe. It focuses its activities into approximately three product sectors: Insulation and Energy Management; Exteriors, and Interiors. It supplies insulation products in Europe, which include structural insulation, technical insulation, construction accessories, fixings and dry lining. It supplies roofing products in the United Kingdom, which include tiles, slates, membranes and battens for pitched roofs; single-ply flat roofing systems; plastic building products, including fascias, soffits and guttering, and room-in-roof panel systems. It supplies interior fit out products in Europe, which include dry lining, doorsets, floor coverings and washrooms. Its subsidiaries include SIG Finance Limited, SIG Dormant Number 4 Limited and SIG Fixings Limited.