Illinois Society of Architects · Chicago · leaf 17
Featherweight Concrete INSULATING ROOF SLABS Haydite—the light weight aggregate used instead of sand—hasmade possible this startling development in roof construction—a strcng, concrete roof-deck weighing but 10 lbs. per sq. ft. andoffering in addition excellent insulating value! Featherweight…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
