b'spectrum scienceto give a better measure of the reflectance ofwere refined to maximise their properties for The dark side ofthe colour. A Resene CoolColour uses pigmentsuse in commercial coating applications.Reseneleft: Cladding in Resene Sonyx 101 CoolColourthat reflect more of the suns energy, resulting inResenechemistslookedinitiallyat the same visible LRV as the standard colour but aKaraka, a popular roofing colour. They incorporatedtinted to Resene All Black.Accent in Resene Ayersconsiderably higher TSR value. these infrared reflecting pigments and comparedRock. Design by Tohu Workshop of Architecture,www.tohuarchitecture.co.nz. Build and painting by Mustard Over many decades, the ceramics industrythenewblendagainststandardcoatings.Builders, www.mustardbuilders.co.nz. Image by Sharni dark colours hasledthechargeindevelopinginorganicOverafiveminutestandardtest,thenewDysart, www.instagram.com/sharni_dysart_photographer.pigmentswhichcanwithstandtheferociousformulashoweda12Clowertemperature firing cycles of their colours. They developedthan the standard colourwhich can make aResene Reseneexpertise in creating mixed metal oxides for theirtremendous difference to the stresses exertedAyers Rock Karakapurposes. Not only did these pigments performon the substrate and has a telling effect on itsResene Reseneexceptionally well under UV light but some ofstability and heat gain. Double Tapa All BlackLearn how colour and contrast affect both thethem also showed IR reflectivity. These findingsAsimilareffecttothatwhichResene look and integrity of your exterior materials. CoolColourtechnologyreliesoncanalsobesavvy paint or wood stain options that could fillthemanufacturersguidelinesforyourexterior observed in plants. Most plants have leaves of ayour needs. Resene CoolColour paints and woodsubstrate and the best formulas for your specific hen you have a specific look in mindtemperature or UV light, and these serve asdid you know? very high chroma green. If those leaves reachedstains look the same as standard Resene coloursjob so that your coatings and building materials W for the exterior of your project, it canResenes master colour standards. To determineUnderstanding LRV can helpResene thesametemperaturewhenexposedtobut are formulated to reflect more of the sunscontinue to look great and perform properly. solarradiationasasimilarlycolourpaint,energy and keep your coating, substrate and be extremely beneficial to researchthe LRV of each colour standard, Resene uses athey would shrivel and die. The fact thatbuilding cooler. That means Resene CoolColour the products youre planning to specify beforespectrophotometer. The measurement it relaysyou to choose more visuallyEighth Tapa they dont is partly because their pigment,technology may increase the colour range thatstop tipyou or your client get too attached to the ideais the CIE Tristimulus Y value, which is a fancyeffective colour pairings, too. Ifchlorophyll, absorbs what it needs from thesuitable over certain heat sensitive substrates. especially if youve envisaged it to come to lifeway of referring to the brightness of the colour.youre not sure if two colour choicesvisible range in order to photosynthesise butAquickwaytotellifaparticularcolourisAn easy way to find Resene colours that willin a very dark hue. Simply put, not every type ofThis, in turn, is used to calculate the LRV. have enough contrast between them,reflects the infrared range, keeping the plant cool. available in a Resene CoolColour formula is to lookwork within a manufacturers specified LRV range exterior material can accommodate mid to darkThe LRV of a colour indicates the amounttheir buildings to look cutting edge. So, whats aabove: Timber cladding in ReseneResene check their LRV values. While there areto the name on your colour chart. Youll see a ccis to use the Resene online swatch library atcoating colours. If too deep of a hue gets used,of visible light that the colour will reflect, whichtrend-loving specifier to do? Waterborne Woodsman CoolColourHappy outliers to this rule, a general guidelineCool designers choose CoolColours symbol if it can be tinted into a Resene CoolColour.www.resene.com/colour. Simply use the dropdown your selection may cause irreparable damageis expressed as a percentage. True black bodyThough youll still need to do your researchtinted to Resene Pitch Black with spiralis to ensure there is at least a 30%When you dont want to choose between styleYourResenerepresentativecanalsohelpyoumenu to search the colour list to suit your Light to the substrate, such as warping, checking andabsorberhasalightreflectancevalueof0%,into your specific exterior materials, you maystaircase alcove in Resene Lumbersiderdifference between the two values forand the integrity of your substrate, there aredeterminecolouroptionsthatwillworkwithinReflectance Value (LRV) requirements.tinted to Resene Happy. Design by Daniel Marshall premature failure.as it absorbs all light as well as the rest of thealso be able to leverage heat reflective coatingArchitects, www.dma.nz. Build by Hargraves Homes,there to be obvious contrast. For example, Whileyoushouldalwayscheckwithyourelectromagnetic spectrum. Consequently, suchtechnology Resene has pioneered to increasewww.hargraveshomes.co.nz. Painting by KingdomResene Eighth Tapa has an LRV of 54% cladding supplier as early on in your project asblack surfaces are very dark and can get verythe Total Solar Reflectance (TSR) properties ofDecorators, www.kingdomcorp.co.nz. Image byand Resene Double Tapa has an LRV ofResene Total Solar Reflectance for Resene Hi-Glo KarakaTotal Solar Reflectance for Resene Hi-Glo possible to ensure your colour choices fit withinhot, because at the same time those surfaces arepopular mid to dark colour choices. Sam Hartnett, www.samhartnett.com. 21%; therefore, the contrast betweenCoolColour versus standard colour CoolColour versus standard colourstheir guidelines, it can also help to understand theabsorbing that light, they are also absorbing theResene Waterborne Woodsman the two hues will be clearly visible under100science behind a key colour metric and the heatrest of the suns energy. Pure white, on the otherDigging into the science Pitch Black a range of lighting conditions both inside90 Resene Karaka CoolColourTSR% = 26 Resene Hi-Glo standard colourreflective Resene paint products that have beenand out. Its worth noting that LRVResene Hi-Glo Karaka standardTSR% = 8 Resene Hi-Glo CoolColourdesigned specifically to expand your options. hand, has a light reflectance value of 100% andSunlightenergy(alsoknownasthedid you know? values are only available for solid colours.80Reflectance (%) Total Solar Reflectancekeeps a building light and cool. All other colourselectromagnetic spectrum) is made up of 44%Semi-transparent stains like Resene70fall somewhere between these two extremes. visible light, 5% ultraviolet light and 51% infraredWoodsman dont have LRV values60The lowdown on LRV Given that its one of the four key basic designlightandeachhasadifferenteffectonLRV measures only what a colour50On the back of your Resene colour chart orprinciples, ensuring your project has enough visualcoatings. Visible light is only part of the story. physically looks like, so a CoolColour andbecause the surface is visible through the coating. A LRV value can be determined40 31fandeckandontheReseneonlineswatchcontrast is important to its overall impact, and theTraditionally, LRV has been used to estimatea standard colour will have the same LRVon a specific sample but it wont be30 26 29 29 29 28 29 25library,www.resene.com/colour,youllfindcolours you choose for it play an important role inwhat colours are suitable for heat prone substrates,as they both look the same. What changes each hues approximate light reflectance valuegetting the right effect. Dark colours are popularhowevervisiblelightreflectancevaluesonlyis the TSR. The TSR gives you insightrepresentative of what the LRV would be20 11 9 12(LRV).Resenekeepsmasterstandardsofchoices for buildings given that they will oftenmeasure a proportion of the energy and ignoreinto how the colour combats the sunawhen different timbers are coated. 10 8 8 8 7 6everypaintcolourintemperaturecontrolledcontrast sharply with the surroundings and arethe effects of ultraviolet and infrared light. TSRCoolColour will have a higher TSR (reflectResene 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 Karaka All Black GreyIndian Tan Ironsand Lignite Steel Grey Racing storage so that their quality isnt degraded byalso a desirable colour choice for those who wantvalues take into account all three forms of lightmore of the sun) than a standard colour. Volcano Wavelength (nm) Friars Colour name Green60 blackwhitemag.com blackwhitemag.com 61'