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Insulation Ingersoll Koolshade Storm-Shade Division Borg-Warner Corporation 321 S. Plymouth Court, Chicago 4, 111. Ingersoll's Koolshade* sunscreen is a bronze miniature Venetian blind with fixed horizontal bars set at an angle which will keep the greatest possible amount of solar heat load outside of windows. By reflecting, absorbing, and radiating most of the sun's heat rays outside the window, Koolshade keeps rooms up to 15 cooler and has been shown to account for as much as 75% of the cooling necessary in air conditioning installations. 100 sq ft of Koolshade is equal to 1 ton of refrig eration and costs to as much. Koolshade provides .insect protection equal to ordinary insect screen. Koolshade is framed and applied to windows like ordinary insect screens. Ingersoll distributors can apply Kool shade in patented Koolshade aluminum frames, in Koolshade Quik-on frames Ingersoll Koolshade which have only top and bottom frame rails held apart in tension by installation hardware or in wood or metal frames. Ingersoll's Sungard* economy sunscreen stamped from aluminum sheet, is in tended for industrial applications and performs the same heat load reducing function as Koolshade at lower cost. Sungard is hot insect proof. Sungard is framed and applied by Ingersoll Distributors like Koolshade. Here is an examplef of cooling load re-, duction based on conditions prevailing at peak solar load at 40 latitude: We have 16 windows on East side of building--each window 4 ft x 6 ft for a total of 384 sq ft of window area. Use 10 a.m. Peak Load: tB>t. u,s Solar load transmitted through . bare windows 116 Btu x 384 sq ft................................................ 44,544 Solar load transmitted through KOOLSHADE 11.5 Btu x 384 sq ft................................................. 4,416 Amount of Solar Heat stopped by KOOLSHADE.............................. 40,128 Expressed in tons of refrigeration (12,000 Btu's--1 Ton) Heat stoppage equals Tons 3.3444 Follow same procedure for 15 West Windows 4 ft x 6 ft--total square footage 360 sq ft--and using 3 p.m. Peak Load: Btu's Solar Load through Bare Windows 61,200 Ingersoll Sungard Solar Load through KOOL SHADE....................................... 7,920 Reduction......................................... 53,280 in Tons 4.440 South windows consist of 7--4 ft x 6 ft and 2--3 ft x 6 ft for total square footage of 204 sq ft--Figuring on 12:00 noon Peak Load: Btu's Solar Load through Bare Windows 15,096 . Solar Load through KOOL SHADE.......................................... 1,224 Reduction......................................... 13,872 in Tons 1.156 Total tons of refrigeration saved 8.9404 Write to Ingersoll Koolshade, Storm-Shade Division, Borg-Warner Corporation, Dept. V for Technical Information. t Example based on test data from ASHVE GUIDE, 1940. " Koolshade and Sungard are trademarks (Reg. U.S. rat. Off.). They are the property of the Ingersoll Steel Division, Borg-Warner Corp. 1414 Insulation Air Ducts, Screens Kaiser Aluminum & Chemical Sales, Inc. 1924 Broadway Oakland 12, California HOW SCREENING CAN HELP YOU SELL MORE AIR CONDITIONING Kaiser Aluminum Shade Screening shades and cools as well as screens. Tiny louvers, one inch wide, do the work. They're set at an angle against the sun--blocking the hot rays but not the view. Thus, Kaiser Aluminum Shade Screen ing lowers temperatures of hottest sunny rooms. Combine it with air conditioning, and you greatly increase your market by selling more customers smaller units. THE HOT RAYS OF THE SUN CAN'T PENETRATE Typical example of heat reduction with Kaiser Aluminum Shade Screening: (for both residential and commercial applications) Window exposure: West. Midsummer peak load 40 N. latitude--3:00 PM Sun load through 100 sq ft of unshaded windows .. .17,000 JBtu per hour Sun load through 100 sq ft of shade screening . . .1,700 Btu per hour Heat load reduced by 15,800 Btu per hour--or 1.88 tons of refrigeration per 100 sq ft of glass. Kaiser Aluminum Shade Screening can help bring the price of air conditioning units within the reach of every home, office or industrial building. Available in standard window widths. Write today for free AIA file and name of nearest wholesaler or applicator. HOW TO CUT DUCT AND FUEL COSTS (yet retain desired Btu delivery) Ducts of Kaiser Aluminum de liver up to 30 per-cent more heat than ducts of other materials--due to less surface heat radiation loss. You can cut surface heat radia tion loss in other materials with insulation. But that's expensive and troublesome. So it*8 economical to use bare Kaiser Aluminum. It costs less than insulated material--and de livers the same amount of heat. At the same time, you'll be giv ing your clients lower fuel costs. That's because ducts of Kaiser Aluminum can economically de liver more heat per Btu input than ducts of other materials. . Graph at the right proves this to be true. It shows results of recent tests conducted at a major university. Write for free booklet that shows more about how duct installation costs can be lowered--and fuel costs reduced--with Kaiser Aluminum. 1415