WO 2011/075776 PCT/AU2O1O/001720 Improvemrentiq relating~ ti overlays 5 Background of Ihe inve~ntion: i'ridtioii AlIVnRsystemsJ ore expensive. to replace &ntl Inflexible it-* they tire r~i readilly Iternovtlble. Three Is a need Ibr v simple, cost elective system to enable adtiplillion of Window" to S-4-ariging nijI-oi i iil 1.)fldit'in$ w And ottitw ntewh of tile. a*r The~ reference to aIfly prior art in this spc1i.111~oh iot, and shoti1d not be. takerl a.. an 10 vicknowlefdg.rm..a or any f'orm i Iggis c that the~ rior art frmsni part of the~ cocrnnion gent-al L no wlerige. Summitry of the invention: According to a firs L aspect. of Lhe. inventioup Lbere. is provided at removable overly, syStem fr 15 at window comprising an a.achnier to ma ntan Line or more components oftihe. ovelay SYSICMT in positiont and optionally compIi"rA one or* mrore. clear, tinted nrsin responsive. ttmertnachlmnl (SRT) (weriavs. in sof'e. ernbodirinents, there is provided a removable overlaky, .Vslerv coniprisin- ait lea, ' one. gap between adjacent surfaces to provide enhanced thermTal, awist aind j or other 20 inqiilat kin wheirmin [he adjacnln quraiti ixomprise. fine or rnwe.- ofa window and man UV.HbiV, a ploralty ofr iverlayn nr an overbay and arnoliir sm-rtie. 4nd Ihe gnp optioinally ixmprime.; n vairm, air, an~ inert gar. firlitnally irgoil) or the like. Tn ;ome. eml dfiients, tht. gali is .djustatdei. so as to a.djulst thpe thermal, an~1 rd / or other insilation prmiperteiin. tnsfivrw evolinlinienut, there i,* proividled ta remciovAble overlaly mgymtern irnpiriig a 11uli1itility 25 of uoverlays. aind a plurality (if attadiznonti so aF. to anhip. a moar to atIlngt tho, typp. oif overlay(rs) and anvy gappi) fictwocr them, a wipdow or. another AUrfac, dpC]uldinlg fill s=sorial, tarmparaturc, light, sound or other requirements. Soiiip einiodiienti proivirie, A rernovalile "idow overlpty (,,f iprisIr~anny one. iir more of the following characristli: 30o Total Itiinatis reflection from the glass nnfla~ce shall bie aL. lAs nominal when nriea~tired with -an ilgrat-3inA sphere gpeOropiholorneter as, referenied Ivy ASfliM l'P9f3 andl nahkiIatcd F,-30'rMR.8 sing Slandard CII'.8clir'e 'T" for averagAt dAyVlghl. 0 Total tr-anwirrion of solar 001travkdeL radiation Of air TMNo6 - 2 o Ver the Spect'&tl I-anye of 3000o lo 38oo Anigsdrorns in the r~rng 8,5.o' to , hnnardwt 1 35 ivilegrat m hreacrcthIon.Irani.rr.n'~ced bly AN'1M K'..963 *An tlR transmnission of' nuti more than io0% and. preferably not moire than 3% when ineasI i-Kd bPtwFeenI 1.40-10i coononmeleig.
WO 2011/075776 PCT/AU2O1O/001720 Imnptnvenienlbs: relating to iverlayA 5 - I .iminous efliciacy t Ieps Nominal. - Shading coefficient at. least nominal (at 60 Degrees) ms measured per ASTM E-i903 and conipuled in accwrdance with the established procedures; defined by The ASHRAEK "tin dbook cil Fu ndarnien tals 9 Toial Woar Energy Rejected shall be at least nominal (at 60 I'~egreeis) aw measured per 10 ASTM K- ' ?3 and computed in accordance with the established pirocedures defined by 'Ile ASH RAF, Handbook of Fundarnenlals. In somne embod~iments, there is provided it removable overlay for at sy-stem according Liu the invention which optionally curnpises a film with Lin optional thick-ness ui1350 to 700 Mficroh, oil a polycarbonate/aciylic sheet with uoptional thickness in the range. 2. MM to 12 mrm, and 15 (bf0iifA1lY tint' Of 3.Omm, 4.51"m, 6-011m, 7.5MmI Or Io.nrmm, or A sealed lninalirn of Antyliv sh.e.k and.I int nerlyter with tiptional Lhieim-ns~ in i he rAng. 6."7rm lo 21 .5111M. The~ invenfirn Alson compisn' A renuvahk't. riverlay I'( Ir ay~~ Acsrordirig toi I hr invenIirtr ~4itilbr. Oir iiss with on. ()I mt riat wa hiiilr-ling cir , ve-te. and nufl onally (in th. insirl tir .outrOC1P.. 20 In nomne ernboditents, there is provided o removable overlay Coroa sslt m accordinA to [he ilveritioii irnnm riig oliie or nuire of thmfolhtoWi ng g~laicit*.rifdii-A: *the attachment. means comprising one or more of a magnetic strip, miftchpul], magnetic strips, steel strapping.celanel pr-otiles andl/ov a iiaible guidle; *an edging (ur profle) which at least parfitfly surrounds the perimeter uf the overlay (and 25 preferably substantially so) which comprises ABS or another suitable polymner, resin, fibre glasis or the like and which is preferably extruded; 0a grip to allow ready rerroval and / or placement of the overlay on a window which is optionally a corner grip and optionally as depicted in Figure 2 herein; 9 any one or niure. of the features descrTibed her~ein by reference to any une ut the Figures. 30 Thcrc is also pro vided amc4rdirng to 6he iriverit u, an overlay four a, window comaprising at last one standard fihn (uptiontally pulycater security film (woo-3.5o micron), laminated to a tint fihu (optionally Silver 20 or nuoi-nictailiscd dyed Nightsk tn) and optiuually cumprising a layer of standard film laminated to each side of the tint filmn, In somed aebudinients there. is provided a rcniable, uvcrlay fur a window comprising a tint 35 such that removal anid replacement of the overlay allows for m, isonal adaptation of the level of visible light transmission through the window apcrture and optionally wherein the uvcrlay may be applied inl conjuinctionl witL' onle cor more other overlays which are optionally niot tinted. 2 WO 2011/075776 PCT/AU2O1O/001720 I mpkiventantt% relating tot f)verlay'i 5 In one . iprt there ik rovided a marinated poly methyl imethmerylatm. caw shepet with astl responsive themloehromatk tintcrlayer for use with or In an overlay according tot the inivention. In .%orte. pill odimplNt, there is provldeA A removAhe. ovP.rlay nertirding tit the. invention may for eXalTple cOmprise any one fir more of thc following characteristics: 10 e loIu lurrlinuv reflect ion 1romn The -glas sur(l-1ce ai least nornimil when vnemiuretl with an' integrating s.phe~r. %ped~:ropholor.ler as. re.renced 1wy ASIM F,-903 and a 101111 1, ronmission of Sov'r kill i-tivilei rka, ion or'&iir rni- - 2 over Ilie speci'rl mRa1e of* 3000 to 3800 angstroms1 in Lhe range 85.0% Lo 99.9% when meitsm-ex. with an 15 iteiratng i~htei pei~trphotmeie.. asre~feirem-wed hy A.IIM K~-93. a an IR l'-ansmisvion of' not Tmore Ihlay 10% and preferably not more than 3% when rnrmaaji-tr IHd.wti-in 900-1000 naflflrt-lemn. * lminoms eiflif-aty Al leil Nommin. shadingg coefficienti al leusl nornirnii (tal 60 D~egrees) Lis me-usLired per A61iM F.- 9 03 20 Lind computed in accordance with the estublithed proceclnreb defined b~y The *ASI IR.Al i andhook of Fteindagneintalr. T *otal Solar EnergKy Rejecdet shall lie at least nominal (at 60 Dejgree-g) as measured per AKINM - 903 and compiled in acrorfani-ri with [lhi MRlAlimili gerom.dorm.4 dellnedr ItyThe. AMiHRAE, Handbook if Fundamnilals. 2S in sorne embodirnenis vu removable overhuly according lo [ihe invention mayx uplkrtilly comprise v luminated film (Ianiilinl).which oplnullyN has v Ihiclknetss ol 3,70 to 72o micron, or an optitt.fly cleiui- lflyitarbonate m- PMMA (Poly Mpiyl Meithaw rhte) kicrylit. sheet. with op~tionlI thie~knefss it) the. range 2.5 mmo to 12 inn, and OPtiOnll1y oill (f 3JflnIm, 4.51narl, 6.nnin. 7.5TI1111 or in.nnnir), fir a lamination of two PMMA cast acrylic sheets with an SRT 30 iviterlayer with a total optional thilek',eiv in the range Of 7.011m1 to 2I.211mi1. T sonie eihodituuits, the. removable overlay of the invention is titahle for nse with fine or niore of ii hnhlcttig or a vei~e. mid optionally on the inside or untilde bi soiree P.mbodiments, the. removale overtay accrinlrg to the invention may canqirkp. fine or morn. of tiuc following r!hartcristif-A: 3S The attait~hirt-it means c~ompfrigiog noeW or niore of a Inagor.fic. strip or all arrangement of separate rare. earth magnets attwduing to a 3nIatehpunfl iagnettk: string fir a steel strap fixed tot the existing window frame or installed sub-frame, or a ruidahie guide: 3 WO 2011/075776 PCT/AU2O1O/001720 I mprnvernentiq relating to overlays~ S * An eflging (or profile.) whieb at least p~rtiallYsurroniis the p~erimeter (if the. overly [arid preferably substantially su) whieh comri1ses a suitable material (which may for examiplc he ABS oir any other LW ~stahic plastic our fihrecgiass or iuitabile construction imflcrial which is i ptit raly cxti udcd or protruded); *A grip to allow ready removal anid/or placemecnt of the overlay on a. window wlii is 10 optionally a curner grip or reraotely stored suction clip grip and optionally as epicteil in Figure. 2 herein; *Any one or more of the features described herein by reference, to the Figures, Thiruughuut this specificatiun (including any clahns which fulluxv), unless the context requires otherwise, thc wurd 'comprisc', and variations such as 'caiprises' and comprising', 15 will be uinde~rstood to imply the inclusion of a stated integer or step orgrup of integexrs or steps bul noL the exclusion of any oier integer or sLep o:r group of integers or Aclop. Brief description of the drawings: Figure 1 is a cross sectonal view uf a sceundary glazing systdciu according tu the present 20 invention. Figure -, iG a front elevatiou view tif a sceuudary glazing systems aecui'ding to the present invention. 17igure :i is an exploded view A if a corner section of a sco~ ndary glazing -systcm accr dinug to the present invention. 25 Figure 4 depicts front anid crom section views of tine examplcern cirrdhnent, hcrein, referred to as tj Bronze embodiment. Figure .'i depict rie. isormctric: and detailed vicws ofta Brtinze cirubodinti. Figure (u cepiut an exlded view of a Bron7.e embodinient. Figure -,lepicus front arid Iross secton vi.wK oif one. example eunhodinient, hearein referredI to 30 naq i SlvPer epnhoellmemt. Fe gurti H dcim. ts4de, isomietric. arid detAiled views of aSilver eiinir. lFiXVI- 4 dec-ct an exikjed~t view of a Silver embUdlimeni. Figure 10 depicts frot nd e-osssection views ofone examnple emnbodinient, herein refenrreJ to us a GoIJ embodiment. 3 5 igue i i depieas side, isometric and detailed views ':a Gold emnbodiment. -4 WO 2011/075776 PCT/AU2010/001720 Inprnvements relating toi iverlays 5 Figure 12 depik. front and cIross spctiro views of oe example ethodiment, herein referred to as an Tron cnimhodrnent. FPIgre 13 deiCts side, b0iom.triv and detailed views of an Irn enihodiment Figue' 14 de-picts an e.xplOded view ofA n ion embolw)diment. Figures 15 and t6 depict various views of an. air thermal break capping mounting system 1o ateording t o ceitain emboidimenlts of the invent ion. Figures 17 and 18 depict various views of a re.ce.sed mounting system according to certain embodimeni oflhe. invention. Figures 19 and 20 depict various views of a flash mount magne. mounting system according 1v cerloin emiodiments o( the invention. 15 Figures 2.1 and 22 depict various views of a rebate mount magnet mounting system according to certain embodimenms of the invention. Figures 23 and 24 depict various views of a flush mount steel strip mounting system accord ing to certain embodiments of the invention, Figures 25 and 26 depict various views Of a rebate mount steel strip. mounting systern ;'o according to certain embodiments of the invention. Figures 27 and 28 depict various views of a flush mounL rare earth magnet mounting system according to certain embodiments of the invention. Figures 29 and 30 depict various views of a rebate mount rare earth magnet mounting system according to certain embodiments of the invention. 25 Detailed description of exenmplary embodiments It is coinvenient ti describe the invention herein in relation to particularly preferred embodiments. Ilowever, the invention is applicable to a-wide range of situations and it is to be appreciated that other constiructions and arrangements are. alsu considered as falling 30 within the scope of the invention. Various mudinicatiuns, alterations, variations and or additions to the construction and arrangements described herein are also considered as falling within the. ambit and scope of the present invention. In some embodiments, the invention provides a secondary glazing system allowing architects/builders/property owners or vehicle builders or users to achieve a desired level of 35 acoustic and/or Lhermal insulation by tailoriig the number and type of overlay and gap layers it consists of, 5 WO 2011/075776 PCT/AU2010/001720 Improvenients relating to overlay 5 Tn sinne embodiments, the. invention provides a secondary glazing system allowing for dark tinting effect on laminated glass windows, in particular large thick and body-tinted panes. which was previously at risk of thermal stress fracturing with the direct application of tint due to the high level of heat being absorbed back into the inner layer of glass by dark tints (ftor example 25% VLT or lower). 10 In some anhodiments. the invention provides a secondary glazing system allowing for dark and highly reflective tinting eftct on IGUs (double glazing) in situations where otherwise the scals would be blown due to excessive pressure resulting from raised temperatures within the air gap caused by the tihn, applied directly to the internal glass surface, reflecting and absorbing additional heat back into the sealed air gap. 15 In some embodiments, the invention provides a system which can also be used to better seal and restrict the entry of dust and general movement of air currents through air conditioning or heating vents, particularly in ceilings, or poorly sealed doors and windows. In sume preferred cmbudimcnts, there is provided a window film that has been launinated with a window tint film. Preferred examples of this comprise two layers of standard tihn 20 (such as security ilhm) and preferably on either side of the LinL film. Some -embodiuenLs comprise two layers of polyester security 11im (100-350 micron each) on either side of a conventional window Lint film. Particularly preferred examples comprise melallised Silver 20 (rellect ive) .t ndt/or tion-mel alltked dyed Nigh I sky io (non-mriled lvr). in some preferred enibodliments, there Is provided a removal and replaceable tint layer for a 25 window overlay which is preferably of high strength nd rigidly. Such embodlimenis ullow uSers to seasonally ada pl ihe level of visible lighil Iransnissioni through Ihe secondary glaing by changing the overlays as required (for example by removing a tint ovetRlay compnnent). As an example, such embodinents provide a greater energy-saving hernefit in Winter when otherwise with permanently tinted windows greater amounts of cncrgy would he comsumed 30 y lighting. Some embodiments provide lIminateci PMMA cast actrylic sheets with a Sim Responsive Thermochromatic (SRT) interlayer. Such sheets are preferably edge welded to provide a substantially oxygen impermeable seal. Figure i depicts an existing window or section of door glass 0 ) with insulating material. such 35 as heading or silicon (8) and overlay (:z) which comprises polycarbonate shect with a body tint or a tint film applied. The overlay may comprise any suitable material, for example a security fdlm, such as a heavy duty fim, for example of thidcess in the range s1on to qnn micron, precfrably 350 to 700 micron. 6 WO 2011/075776 PCT/AU2O1O/001720 I Fnpwovenentiq relating to) owerlayr. 5 Overlay (2) fi; ittached ti) window frane (3) viA suh fraive (0) which in this Pnhodinent comprises extrulded plastic and is held to frame (3) hy secw (7). Magnectic strips 1 5) serve to attach overlay (.via edging (or proflc) (4) to suh -framne (6). Edging or profile (4) irnay partiafly surnftmd overlay providedd that this is sufficient to enaldce ngagcrnent with window frame (,j) in such a way to hold overlay (.t in place. In fiiimc preferred 10 embodiments, overlay (L, is substantially surruided at the pea-imeter by profile -(4) which provides added strength. An overlay according to the present invirntion may'Lx applied to either thc inside or the outside uf a widw. Attacbmuctt means suitable to an outside attachment may be. used in such embodiments. In some of thes, a sinmple magnetic strip system as decribcd above. will 15 be sufficient. In others, mn alteriative system, such as a set of guides and/or channels with which the overlay slidably engages may lie required (for exmple to avoid the overlay tieing blown away bky wind). FigtUre 2 depicts overlayv (9j) with corner pieces (.Lo) in this embodimenL comprising piastic ABS and prole (1--1) completely stirroundinA the periincer of' overlay (9). Also idepl)ctecd is 20 linger yrip i i which is in (his ernbxOiewL placed in it cornecr aind enables retidy application a nc remonval ol overlay (9). In some enibxlimenils Lhere Is no (Inger grip. In ihese embodiments, another suitable 25 F~igure 3 depicis sn exploded vw of one corner of ton oveu~ay syslem olcLurlllng lu Ihe Vmure"n invtl.111ifl. OveitAY (14) i.'; allAeched lo magneiuc siril) (13) via MelITAdt'.c Profle. (ff) and i~rmer [iecue (s5) iSAittai-hedr irootnd proile. (16). A wide variely of opliorull tlehres may be comnprised in -mn overlay according lo 1be inveinl Cor example: 30 Optical Grade polycarbonaie. or cast PMMA (I'ersp~ex or any other brand) - ourvarvink IWAiOARPSe, 1*r. eixawJ~le- 3.0min, 4.5nim, 6.omm, 7.5"nm or 10.00MM 1u1INKIed uS. individnal ihe-i% or edge-wel.ded and laIm inaleK'ed toge~lter with an SRrinitrlaye~r . Trim i a wide variety ofr ucnis to inatilh existing ftrme ilm . Trlim made out of cxtrudcd ABS or any other UV-ftahic plastic, fiberglass cernipound 35 ~Or any othcx sui tahi. cotnstructioni material. SOirner trim on o~verlay.- made from ABS or any other UkV-stahlc plastic, fibreglass ce uplound or any i her stitahlc ct instruete r material. *Corner fingei grip made from ABS or any other UV-stable plastic, fibreglass compound or any other suitable construction material or separate suction cap grip. 7 WO 2011/075776 PCT/AU2O1O/001720 I mpinvent entN relating tit overlaysi 5 *Magnetic strip or individual rare earth imignet affixed to rear side of ipcoridary gla-zing. * Matchpull mxagnetic strip or thin, pvowdcr cc oatcd steel strapping and/or. steel. subiframe aiffixed to existing window franc or dlirctly onto window glais. *A self managed system allipwing removal tif tint layer in winter tor anl automatically 10 adapting SRT system. requiring nu clc-ric current and prov iding additiun VLT Iisible Light Transmission) in Wintcer. Any suitable specific-ations may be used in relation to the tint of au overlay according tu the present invention. Tinting has inany beneficial effi~fs, fur exanmple, fade protection fur furnittire, drapes, carpets and flooring in addition it results in glare, LV and further 15 excessive. heat gaiin reduction. A uisetul benefit is the lowering of oirerall energy costs, parlicularly in relation to air conditioning and heating. Suitable Visible Light Transmission levels mnay for example range from approx 8% at darkest when exposed to maximum climatic heaL (Summev) to approx 55% in minimum clma tic heat conditions~ (Wiriter). T1he amount oC 'vlar heat rejected may im example range frorm 20 ajiprox 65% tit its lowest VI .1 to 4096 at Rts highes VI T level. 'T'lrrnia1 Insulat.1121 In some embodiments, there are it range of possible niethods of installing an overlay according to the invention, In suci embodUielis, it is often benellclal to consider Ihe opLiniurn uir ga'p Nvith6 for varow retlieyvvents, such us thermal insolaiiori (s'mynet- limit 25 guin / winferheul loss) orucic-O~ic: islliot trelclion ni level orsicoaing ntuifte). For example, I Some eynbodlymnents; for thiermal Insulation, tbhe optimum Oir gap wldt-u is 4) the range oi8B - 25 min to minimise air movement wilhin.an air jiorket Ixtween the existinyg glASS And live Inshalled overlay. Any imoveryenl of' air Increases The rale of' fenl loss/gnin Aieross the air gap) as a greater sarfme. tl (fhe air Is texw)Posei tI ihe Inner and OIldeg fiarrier 30 saF14i:5tthiffluir gap. Anoiher 4-:onsidernllor i n Ihe. (lelerminlnA inuilialiOn I, it- he e.ivenP~ o( he .4eal around t he exisqting glazing. HIfnt icorreni ly well sealed, 1 his will resouiI n heat lea-Age.. The vconsiruclion inaterial for the exiSlinA windows Will also play v minor role in thermal insulation. Thos for example, aluminiumn window frames are ht..tter heat rminduittors Than 35. timer winclow fc-m-iesand therethmre ltc~fers fiveat i n-ilati og apal rut heat gain a ml los..% KxAmjule PerI~,rmnice I'Min incoming irlaw-e Fade IN Winte~r heat I tcq 8 WO 2011/075776 PCT/AU2O1O/001720 I rnpefivernentbi relating to overlayn hecat reduetiou rcductioza reduction rediatioii reduction 'Nig1htsky 6,- , at' 70W, 6r0-7nW depending oiu Examnpl width of air gap band thiclIceas of overlay 'Silver" 7d?/ 82% 8q34 C,% 0-70% depending on Example width of air gap aud thielcness ot overlay Act ustir Tmutlatit in For acmu~stie insulation, thc optimum air gap width i as wide as piosil,1c. In general, tii flcafl8 nut less than .5omm and preferably moure that iaoumL The wider the gap and the thicker thc material of which the barriers arc constructed, the greater level of Sound 10 insulation cau be achieved. Example I'erfurmancec Data Noise reduction may be as great as 6n% or murc dcpcndcnt on thc width of thc air gap and the thickness of the uverlay (fur example, 3, 4.5 or 6Umm). Figure 4 depicts, front and crojs=6 ctin view.; Ad une exmple cilnt dimt, herein refecrred 15 tu as a Bronze embodiment. Figure.5 depicts side, isometric and detailed views of a Bronze embodi~ment and Figure 6 depicts an exploded view of a Bronze cmubudinicut. The Bronze emnbc'dineni. comprises a basic single layer overlay. IL can be in mny Suitable fbrmi, in ibis extunple it is either in clear polycarbouate, or Lamitint (showing three laminations with the Lwo external layei-s 0( 350 micr-ot polyeStr Se-CLIrlLy 1111 eflcapsulaLing 1.he third 20 e)nivetitiorml window ONti 1111), Figmre 7 dlepicts i-oni arnd cross section views ol'one example embodiment, WL lime herein refeiret. Lu as at Silver embotdimiNt, igire 8 depicts side, isurtetric and detailed views o1 a Silver embudimenil and Figntre 9 dlepicts an explodled view or* a Silver ernbutlimenl. The Silver embatd imeni comprised a) 91l ar(. Single uoy~bn /eyi verlay bidl wilb 25 addod rtinaL.rj a~nte Amitit avt~rltiy. (T~,nltint rea1-s to) a laminate Itli tinited and sion-tinitd materials.) Figmlw. to dt 1 tt frount ondu~ stimsst~ ~ttionf vie~ws (if onie example hmixifl~tt tiorte herein refcmrrtd to as a Ovoid eminldmenit Figuireb ii depicts side, firmetric and cletAlled views of a Ovold emb1){diuie.,t. 9 WO 2011/075776 PCT/AU2O1O/001720 Impigivem~entq relating tot o~verlays 5 In thi.-i example einlx 'iment.; the ('Told Pnihodimn:t comprtse premium tailo red multiple., layers system. Tn this example, it un nprtcs 2 Iaycri~ of polyearhurtatc cor acrylic shbet witli a scaled air gap (vacuum, air cir argon-filled). 71)hC third layer is Larnitint which ,Iidr-- into a slit in the Aiurm~unding edge frame and can lie cardly removed and replace. Can be mnanufactured with mifltiple layers and air gaps, with p&/yarbouatc/acrylie of any thidkness 10 and include LamiAtint and SRT layers to meet the prescribed acoustic. and/or thermal insulatiun iluiretnients. Mirc 1,- depicts front and cross sction -views of unc. example embodiment, at tirnc here-in referred to as an Iron crnbodimcnt. Figure ii depicts side, isometric and detailed views and Figure 14 depicts an expludcd view of an Iron embodinicut. The lrun embodiment illustrates 15 yet another example implemnentation of the approach and flexibility of the invention. Figures 159 to 30 illustrate various cxanmplc enibudimients showing approaches to mounting systems. Note, that preferably thermal break capping is only for use with existing aluminium or metal frames. Recessed mottntings require installation of a new sub-ftrme (constructed fur example of 20 eiher right Lingle steel or rectangular acrylic. rod with steel st~rapping attached Lo allow for mqgnelic id'hesln). Another aliernalive construction vt~es an exisl tug suitable rebate in The winoidov frame und applie a sec.o-id gii rnagnet or steel sirapping in il rebate to Ilacilitate lairralihmei~ of Ihe. ovr-rliy .4yIe-rn. In soie etrboditnents there is provileJ a VIlsh F~ront Mointf which it; engaged directly on 25 the frunt tface ol ihe exilinA IaIcM ulili-811.0 11 mvichpuill magnet oi* nikgnet to steel slripljino IL shotil be noted thiat rare earth miagneLs may be used instead ol strip magnets, 11' 1-aie enih manneIs -,re to be Wtilised, nn Iniermedinle conmpressible lbamn strip Is Also prerernbly in~olAlle'd to etn~n~ir A lielter I he "y'ste-m. 30 E~xamiple 1o; Overlay coatedl wAith tin ted tfim Film Material: According to this enibodiment., thle ITIM shall be an optically clear polyester film covitaining ni Plurality ol' layers und incorportling Lin aci-llic pressure Netnsitive. adIlie-ve on one sidle ondl in acrylic Arasion resislinl cowting on ihe other. The Mill thill tilso * iI-nrlNirAtp Tnfran-d nhirwhbiig oirbn and/nr mtetal oxide~ Ilar 11P. Mh in Aiia II he' 35 tinilornO witlirbit nntireale plobin J ~r i thin 9 pob;, %,rafilaes, handig or uotheir ogitircaI rtcects. The variation iii total traiisunis~ioi across the width, at any portioni along ticle ngth0, -- hall not exceed :z% over the average. T1hc. filmn sliati haa'c a nominal thicknesA (if 2.0 ii (nl.00l2 inchesq). 10 WO 2011/075776 PCT/AU2010/001720 Impiovementst relating to overlays 5 Emilssivity: The emisslvity of the non-adlesive surfan of the fihn shall he n.78.nominal when measured using a Devices & Scrvices Emissomcter Modcl AE at or ncar room temperature. U Value.: The U Value of the film applied to 1" (fimm) ilear gi shall iv i.n nniinal when measured in acorlance with test procedures dcscribcd for Emissivity. 10 Transmission - Visible: When applied to 1/1" (6fmn) clear glass, the luminous transmittance shall he nominal when icasurnd with an integrating sphere spcetrophotomctcr as referenced by ASTM R-qn3 and calculated per ASTM E-:n8 using Standard Source "C" for average daylight. Reflection - Visible, Exterior: When applied to 1/4" (6mm) dear glasa, the total luminous 15 reflection from the glars surface shall be nominal when measured with an integrating sphere spectrophotumcter as referenced by ASTM E-qn3 and calculated per ASTM E-3n8 using Standard CIE Source "C" for average daylight. Reflection - Visiblc, Intcrior: When applied to 1/4" (6mm) clear glass, the total luminous retlection from the glass surface shall be nominal when measured with an integrating sphere 20 spectrophotometer as referenced by ASTM E-o93 and calculated per ASTM E-08 using Standard CIE Source "C" for average daylight. RI-jcted - Ultraviulet Light: When applied to 1/4" 6mm) clear glass, the tutal transmission of solar ultraviolet radiation of air mass = 2 over the spectral range of 3000 to 3800 angstrums shall be i73.9% minimum when measured with an integrating sphere spectrophotometer as 25 referenced by ASTM E-903. Rejected - Infrared Light. Film shall have an IR transmission of not more than 3% when measured between 900-1000 nanometers. Luminous Efficacy: When applied to /4" (6mm) clear glass, the luminous efficacy (Defined as the ratio of visible light transmission to shading coefficient) shall be Nominal. 30 Shading Coefficient: When applied to 1/4" (6mnn) clear glass, the. shading coefficient shall be nominal (at 60 Degrees) as measured per ASTM E-0o3 and computed in accordance with the. established procedures defined by The ASHRAE Handbook of Fundamentals: Total Solar Energy Rejected - normal and 60 Degree Angle: When applied to 1/4" (6mm) clear g 5 lass, the TSER shall be nominal (at 60 Degrees) as measured per ASTM E-)03 and 35 computed in accordance with the established procedures defined by The ASHRAE Handbook o('FundarenLalh. 11 WO 2011/075776 PCT/AU2010/001720 Impfolvenents relating to overlayx 5 Example 2: Overlay coated with tinted night vision film Sipe (Nigh I ViSion) NV-i5 NV-25 NV-35 NV-45 Thickness (rnTihs 2.5 2.5 2.5 2.5 (inches) 0.0020 0.0020 0.0020 0.0020 10 Emissivity 0.70 0.72 0.74 0.78 U Value 1.N4 1.n51n6 o.nf Visible Light Transmissit n 15% 25% 35% 4,% Visible Reflection 15 F.xlerior 43% 29% MI% 9 L11 traviolet ransmission <16 <i% <i% <1% Shading Coefficient 0.29 0.39 0-49 0.63 Adhesive Syslem: Pressure sensitive, weatherable, acrylate adhesive applied uniformly over surface opposite abrwsion reisisarit coated surface. 20 Viewing film from a distance of io feet (3 m) at angles up to 45 degrees from either side of glass, 111m shall not appear distorted. Abrasion Resistance: Surface coating resistant to abrasion, with less than 5 percent increase of transmitted light haze resulting per ASTM D-L044 using ±oo cycles, 500 grans of weight, and CS IoF Calbrase Wheel. 25 Product Data: Manufacturer's product data including installation instructions and cleaning methods. Film Material: Film material consists of an uptically clear metallized polyester film which may be laminated to a clear polyester film. Provide films with acrylic abrasion-resistant coating over surface of film for enhanced durability. 30 Film Color: Derived from metal coating and/or components, and product will not contain conventional dyed polyester. Provide uniform film, without noticeable pin holes, streaks, thin spots, scratches, banding, or other optical defects. Variation in total transmission across width, at any portion along 12 WO 2011/075776 PCT/AU2010/001720 Impr-ovenents relating to overlays 5 length, shall not exceed 2 percent over average. Density of film across web Is not to exceed plus pr minus 2 percent. PrcMde film with no evidence of coating voids. Example 3: Overlay cAsted with architectural tinted film Ultraviolet Rejected (A1'M F 9 o3):-No less [han 99 percent. 10 Visible light Transmission (ASTM . 903, ASTM Eo38): Not more than 75 percent. Visible Light Rejected (ASTM E 903): Not less than 12 percent. Sular Heat Reduction: Nut less than 10 percent. Shading Coefficient at qn Degrees (Normal Incidence) (ASTM E qn): Nut less than o.86. REFERENCES 15 ASTRAE - American Socety for Heating, Refrigeration, and Air Conditioning Engiineers; Handbook of Fonda rentals, 1497 Edition. ASTM K 84 - Slindard Mel hod ofes[ for Surfac. Burning Characlrrisliis of Ruilding Materials. ASTM F 308 - Standard Recommended Practice for Spectopholometry and Description of 20 Color in CIE 193.1 System. ASTM E q031 - Standard Methods of Test for Solar Absurbance, Retlectance and Transmittance of Materials Using Integrating Spheres. ASTM 0 26 - Standard Practice fonr Perfmiing Accelerated Outdc or Weathcrizing f4r Non-metallic Materials Using Concentrated Natural Sunlight. 13