Abstract: A insulated masonry wall system having insulation blocks between structural and face blocks to provide structures that are strong, inexpensive, avoid thermal bridges, and resist transmission of heal The walls are attractive and versatile, and an enormous variety of decorative face members may be utilized. The face blocks are attached to the structural blocks to prevent facing materials from falling even if fire destroys the insulation blocks between the structural blocks and the Facing. The system resists water penetration and effectively drams water that does penetrate any portion of the system.