Senate House Case Study by Cantifix

C an tiďŹ x C ase Stu dy Vo lu m e 1:Sen ate Ho u se A rchitects Spacelab M ain C o n tracto rs C o llin s C o n stru ctio n

Speci f i cat i ons

Glas sPanels : 1 0mm SN70 s olar-cont rolcoat i ng 1 6mm argonf i lledcav i t y / blacks pacer 6mm cleart oughenedglas s 1 .

5mm PVB i nt erlay er 6mm cleart oughenedglas s gas ket sands i li conei nblackand al umi ni um ext rus i onsi nRAL7047 ( li ghtgrey )

KEYFACTS •Theroofi smad eupof1 07 uni queglas spanels •Duet ot hes t eel’ sgeomet ry , mos toft hepanelswere act uallys i x-s i d ed •Unus ually ,t hed es i gnwas bas edond rawi ngsprov i d edby t hes t eelworkmanuf act urer •Theroofi sbond edus i ngov er 200 li nearmet resof s t ruct urals i li cone •Twod et ai lswered es i gnedf or eachi nt erf ace-af latd et ai l anda“ wors tcas e”d et ai l,where panelsmeetatanangled uet o d ef lect i onoft hes t eel

Challenges •Eachpanelhadtofi ti ntothelatti ceof steelwi thatoleranceofonly4mm,the angleshadatoleranceof+/ -0.

5° •Theli ponwhi chtheglasssi tsi sonly 50mm,thebaremi ni mum prescri bedbyour engi neer tsettled,thesteelworkshrunk,so •Asi whi lethefi rst1 00 panelswerefi ttedi na matterofday s,thelastfew tookthesame amountofti metofi t,astheframeworkhad shrunkbyaround50mm •Thesmallestglasspanels( 1 0kg)couldbe li ftedi ntoposi ti onbyhand,whi lethe largest,atover1 30kg,neededtobecraned i n

“A facetedstructuralglassroofcoversthe courtyard–snaki ng i tswayfrom onesi deto theotherandmaki ng akeyarchi tectural statement,whi chi svi si blefrom allfloorsof thebui ldi ng,seamlesslymarryi ng thehi stori c bui ldi ng wi ththi smoderni nterventi on. ”-Mi x Interi ors “acompletelybespokedesi gn,wi theverypi ece ofglassspeci fi callyengi neeredtoadi fferent si zeandmeti culouslycrafted–1 07uni que panelswerefi ttedi naverypreci seorderto achi evethi sexcepti onal. . . . look”-Constructi on Update

t heglas si sbond edandheldi nplaceus i ngSIKA s t ruct ural s i li cone.Thi sallowst herooft obeheldt oget herwi t hout anymechani calf i xi ngswhat s oev er.Cant i f i xandSIKA engi neerscarri edoutext ens i v et es t i ngt oens uret he s i li conewouldholdupt ot heenormousload splacedoni t .

Theund ulat i ng,c urv eds hapeoft heroofmeansi tmeet s t hewallat d i f f erentangles .Theref ore,t heglas suni t s hadt obecaref ullys haped i nord ert oens uret heyf i t s nugwi t ht hewall.Int heabov ed et ai l,t heglas suni t ont heri ghthasalargers t ept hant heoneont helef t t ocompens at ef ormeet i ngt hewallatamoreac ut eangle.

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