W. LASKA and C, OSTRANDER Masonry Advisory Council, Park Ridge, I11.

This paper is a shortened form of -CAVITY WALLS: a Case of High Performance”, a technical booklet developed to aid the American designer in his understanding and detailing of cavity wall systems. It examines two structural systems built in conjunction with cavity walls; bearing wall and concrete frame. It is a practical booklet with graphic representation of critical details and appropriate calculations to assist the designer in achieving a high performance cavity wall system.