Waterproofing composite self-adhesive membrane reinforced with a woven non woven single strand composite polyester fabric, having excellent mechanical characteristics as well as dimensional stability. The special surface finish made from slate microflakes makes the surface of the SOLAR STRIP MINERAL membrane ideal and high-performance for the subsequent laying of flooring using cementbased adhesives. The underside of the product has selfadhesive strips designed to enable firm yet partial adhesion of the SOLAR STRIP MINERAL membrane. This special and unique finish guarantees an adhesive surface of 50%, without affecting the function of dispersing the water vapour in the flooring underneath, thus eliminating the inconvenience of bubbles.