Industrex

MORE DIFFUSED DAYLIGHT AT LESS COST

Industrex is an improved light-diffusing glass for industrial and commercial buildings. Attractive in appearance, it is suitable for interior glazing, and because it is not a dirt collector, Industrex is ideal for factory windows.
The fine, slightly raised pattern is easy to clean without the use of a brush. In tests conducted at the College of Engineering of the University of Michigan, a comparison was made with ribbed glass which sells at the same price and which has long been so widely used in industrial glazing.
After both glasses were exposed to dirt accumula
tion in boiler room windows for 18 weeks, the volume of diffused light passing through Industrex had been reduced by 22.2% and through ribbed by 30.3%. Cleaning Industrex restored all but 0.3% of its original efficiency, but the ribbed glass was found to have lost permanently 6.8% of its efficiency because of dirt which could not be dislodged from the grooves.
Specify Industrex—it is easier to clean, stays clean longer, and because its original cost is the same, it provides more daylight at a much lower maintenance cost.
Manufactured by

BLUE RIDGE GLASS CORPORATION

KINGSPORT, TENNESSEE
Sold by the
LIBBEY -OWENS FORD GLASS CO., TOLEDO, OHIO
Through Leading Glass Jobbers