The advantage of the Haener system is its simplicity, flexibility, and attractiveness. There are only three blocks: a runner, end and a half block. Together these blocks produce finished ends, pilasters and corners. The half block is also used to produce a lintel for door and window openings.
Haener Block differs from conventional block in that it is not necessary to use mortar between blocks or courses. Interlocking nubs position each block in relationship to those around it and each block is manufactured to a constant height to maintain level of plumb of the finished wall.
The wall shown was constructed by personnel who had little to no experience as masonry workers.
Water repellent admixture