Illinois Society of Architects · Chicago · leaf 17
Featherweight Concrete INSULATING ROOF SLABS —CONCRETE MADE OF HAYDITE AGGREGATE! This concrete withits unique structure of trapped air cells produces strons^ lisht, insulating roofslabs which go on the same light steel frame that carries other roofs. Featherweight slabs provide the lowest cost…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.