exterior, for concrete, solid and perforated building materials, no-fines, lightweight concrete, cellular concrete - use category A, B, C, D, E in, accordance with EAD 330196-01-0604, for use in external wall insulation systems, for fixing polystyrene rigid foam boards, for fixing Sto-Stone Wool Insulation Boards Xtra 1/B/H2, for fixing Sto-Stone Wool Insulation Boards Xtra 2/B/H2