A company focused on waterproofing, thanks to its bituminous, synthetic and liquid membranes.

Flag Spa was established in 1963 and grew up from being a small Italian company to a European concern leader in the manufacturing of synthetic waterproofing membranes. Nowadays, upon entering Group Soprema, its 2 production plants in Chignolo d’Isola (BG) and Villa Santo Stefano (FR) manufacture PVC and TPO synthetic membranes, that are sold all over the world.