Cool Mortar is a cement-based thermal insulating masonry mortar composed of hydraulic binders, selected aggregates, lightweight particles, and high-performance additives. It is supplied as a dry powder in pre-weighed bags ready to use on-site, which requires only clean water to produce cohesive mortar. It is a premium quality product containing a special adhesion additive. Cool Mortar will enable the sandwich block to achieve the required U-value by eliminating the thermal bridge phenomenon. The product provides thermal insulation for building wall sections relying on advanced material technologies.