b'rigure _2 AUGUST1962 175DECK - . CONCRETE . INSULATED LL150CDSMOOTHBLACK 0 .@CRUSHEDSTONE LaJ@MARBLECHIPS 0: :::,.@)SMOOTHWHITE I-1./".) 0:,, LaJ t125@AMBIENT//_.,118F~7I (L ~ lJJ I- 100 75 0800090010001100120013001400150016001700180019002000 \\ TIMEOF- DAY(EDT) DataobtainedduringtestsattheNationalBureauofStandardsshowthat themagnitudeoftemperaturechangesi namembraneisdependentuponcolor andtextureoftheprotectivesurface. } ,\\'