Pre-applied membrane with anti-submarining layer

A membrane for waterproofing a substrate, comprising:

• a laminate construction wherein the laminate comprises a carrier sheet, a pressure-sensitive adhesive (PSA) layer, a particulate layer partially embedded into the PSA layer, and a protective top-coating layer attached to the particulate layer, the laminate having parallel side edges whereby the laminate construction can be rolled into a roll form along the side edges for shipment;
• the carrier sheet having an average thickness of 0.20 to 2.0 mm;
• the PSA layer attached to the carrier sheet and having an average thickness of 0.1 to 1.0 mm;
• the particulate layer partially embedded into the PSA layer and comprising aluminum oxide trihydrate (ATH) particles having an average mean diameter of 50 to 200 microns, the particulate layer having a coating weight in the range of 10 to 300 grams per square meter;
• and
• the protective top-coating layer covering the partially embedded ATH particles and portion of unembedded PSA layer, and preventing the reactive particles from submarining into the PSA layer when the membrane is rolled for shipment, the protective top-coating layer optionally comprising nano-silica up to 0.25% by weight, the protective top-coating layer comprising a polymer chosen from acrylic, acrylate/styrene copolymer, acrylate/vinyl acetate copolymer, chloroprene, butyl rubber, styrene-butadiene copolymer, SEBS, or mixture thereof;
• and the protective top-coating layer further comprising a filler in the amount of 20% to 80% by weight and having an average thickness of 0.01 to 0.20 mm, wherein the protective top-coating layer exhibits 50 to 500% of elongation when measured after casting a 1.0-1.5 mm coating of the protective top-coating layer.