Hadspen Roman Villa

Cant i fixCas eSt udy Vol ume9:RomanVi l l aMus eum Ar chi t ect s St onewoodDes i gn Mai nCont r act or s St onewoodCons t r uct i on

Thebri eff ort hi sjobwass li ght lyunus ual-creat eaglas sbri d geov er t herui nsofananci entRomanv i llai namus eum d ownatTheNewti n Somers et .Thebri d geneed edabal us t rad et oprot ectbot ht hev i s i t orsand rui nsf rom anypot ent i alf alls .Howev er,t hecat chwast hatt hebri d ge need edt obef i xedt ot hebal us t rad easmi ni mallyaspos s i blewi t ha mi ni mum ofv i s uali nt errupt i ont ot herui nsbelow.

Thecli entals owant edanent i relyglas sf açad eof f eri ngv i ewsf rom t he mus eum t ot hef ull-s calerecreat i onofaRomanv i lla.Thef açad eoft he mus eum i sov er50m longand ,agai n,t hecli entwant edasli t t lev i s ual i nt erf erenceaspos s i blei nord ert omaket hemos tofs omepret t y s pect ac ularv i ews .

Allphot ographybyCrai gAucklandand©Fot ohausLt d .

Speci f i cat i ons

Bal us t rad e:

•6mm heats t rengt hened ,low-i ronglas s •1 2mm heats t rengt hened ,low-i ron glas s •6mm heats t rengt hened ,low-i ronglas s •Alllami nat edwi t h1 .

5mm SGPi nt erlay er

Bri d ge:

•4x1 2mm heats t rengt hened ,low-i ron glas slami nat edwi t h1 .

5mm SGPi nt erlay er

Façad e:

•1 2mm low-i ront oughenedglas swi t h Ipas ol70/ 37s olarcont rolcoat i ng •1 6mm glas ss pacer( s i d es )1 6mm black s pacer( t op/ bot t om) •3x1 2mm heats t rengt hened , low-i ronglas slami nat edwi t h1 .

5mm Sent ry pl usInoplas ti nt erlay er

KEYFACTS •Theglas selev at i onoft hemus eum i s ov er50m longandi sf reef rom v i s i ble f i xi ngsands t ruct ure,us i ngglas s s pacerbarsands t ruct urals i li conet o red ucev i s i bles i ght li nes •Theglas sbri d geabov et hepres erv ed Romanrui nsi sals of rameles sand s us pend edf rom t hebal us t rad eus i ng ani ngeni ousf i xi ngs y s t em COLLABORATORS Archi tects:StonewoodDesi gn Contractors:StonewoodContractors Engi neeri ng:GlassLi ghtandSpeci al Structures

Challenges •Themai nchallengeonthi sprojectwasthesi ze ofthepanelsonthefaçade-allthepanelsare almost5m t allandtheheavi estwei ghsover1 .

5 tonnes,whi lethesmallestwei ghsamere0.

6 tonnes.Itwasi ncredi blyi mport anttoplanand li ai sewi ththebui ldersandarchi tectstoensure theglazi ngcouldbei nst alledwi thami ni mum of fuss •Thedet ai li ngbetweenthebri dgeandbalustrade wasanotherareawhi chneededcareful consi derati on,asthecli entspeci fi callyrequested thattherewastobenoframeworkobstructi ng thevi ewsthroughtotheRomanrui ns

PRESSQUOTES “[thebui ldi ng i si nsulated]bysolar controlandfourlayersofglass, beauti fullydetai led.Thereappearstobe barelyajoi ntbetweenthehugepanes thanksto5mm glassspacersreplaci ng soli donesbetweenlayersthreeand four,sothesi li conecanbeverythi n. ”EleanorYoung,TheRIBA Journal “themuseum i sasophi sti catedpi eceof 21 st-centuryarchi tecture. . .

Itfloats abovetheground,i tsli ghtnessampli fi ed bya1 64-foot-long glasswallfreefrom vi si blefi xi ngsthat,at1 6feethi gh,also provi desgrandvi ewsontothevi llaand rolli ng hi llsbeyond. ”-JasonSayer, Archi tecturalDi gest

Bal us t rad e glas s

Ti t ani um pl ug

Bri d ge glas s Bol t

Thecli entwant edaglas sbri d geov ert herui nsofaRomanv i llaf ound ont hes i t es ov i s i t orst ot hemus eum couldgetasclos easpos s i blet o t herui ns .Howev er,t herewasacat ch-t heys peci f i edt hatt herewere t obenov i s i blef i xi ngsbet weent hebri d geandbal us t rad e.

Tos ol v et hi s ,ourR&Dd epart mentcameupwi t hani ngeni ouss ol ut i onf i xt hebri d gei nt ot hebal us t rad eus i ngt i t ani um pl ugslami nat edi nt o t hebal us t rad e.Thepl ugshav eas crew t hreadmi lledi nt ot hem anda bol twass i mplys crewedt hrought hebri d geglas sandi nt ot hepl ug, hold i ngi tf i rmlyi nplace.

Hand rai l

Bal us t rad eglas s

Thehand rai li sf i xedt ot hebal us t rad ei nacomparablyclev erf as hi onas t eel“ T”waslami nat edi nt ot hebal us t rad eandt hehand rai l( by ot hers )wasbui l taroundt heexpos eds t eel( t het opoft he“ T” ) .A s i mi lard et ai lhold st hebal us t rad ei nplaceatt hebas e,butt hes t eeli s bol t edi nt oananglewhi chi s ,i nt urn,bol t edi nt ot hes t eels t ruct ureof t hebui ld i ng.

St ai nles ss t eel angles

St ruct ural s i li cone

Wheret hebri d gemeet st heconcret ef loor,i ts i t si nachannelf ormed byt wos t ai nles ss t eelangles ,whi charebond edt ot hef loorus i ng glazi ngt ape( t hepi nkelement sabov e) .Theglas si sals of i xedt ot he s t eelus i ngglazi ngt ape.Wheret heglas si sf i xedt ot hes t eel,we’ v e s ealedt hejoi ntwi t hs t ruct urals i li conet oens ureawat ert i ghts eal.

St ruct ural s i li cone

Glas ss pacerbars Theglas sf açad eus esani mpres s i v e39mm t hi cki nnerpanel,f ormedof t hree1 2mm s heet sofglas slami nat edwi t hanSGPi nt erlay er.Inord er t omaxi mi s et hev i ewst hrought hef açad e,t hecli entchos es t ruct ural glazi ng( f rameles sglas sbond edt oget herus i ngs t ruct urals i li cone)and glas ss pacerbars ,asoppos edt ot hemoreus ualal umi ni um.Theglas s s pacersaremad eoflow-i ronglas st oens urei tlooksasclearas s i ble.Att hecorners ,t heglas si smi t redat45°andagai nbond edwi t h pos s t ruct urals i li cone.Wi t h215m hi ghjoi nt s ,t herewasat ot alofov er 1 00 li nearmet resofs i li cone,whi chkeptouri ns t allersbus yf oraweek ont hes i li conealone!