04.05.14 - beta release edition 04.05.14 - beta release edition alightmouse limited, christchurch new zealand, e:alightmouse@gmail.com, w: www.alightmouse.co.nzCLIMATE CHANGEISN'T REALGEODOMESUPERMICRO-CLIMATEFOODPRODUCINGGREENHOUSEnow growingalightmouse ltd`` ``` ``` ` : `,````A GREENHOUSE FULLA BUCKMINSTERofficial open source document free for personal use(artistic impression)AN INTRODUCTION TOAGREENHOUSEFULLA BUCKMINSTER-A BRIEF RUNDOWN ON THE PROJECT-KIA-ORA E HOA! the motivation behind the project was driven by my own exploration with 'backyard'farmingandre-gaininganindependencethroughfoodhomeproductionthatmostofusinthewesthave not embraced since the times of our grandparents.inspired by the shapes made famous by architect Buckminster Fuller, not to mention the ideas for theworldinwhichhepresentedthroughhiswork,thisprojectaimstofulfiltheneedsofhomefoodproductionforsmallfamilies.allwhileproducingfoodatanefficientratewithhighernutritionalvalueand using passive methods of heating & cooling.whilenotnecessarilycapableof100%foodproduction,throughdevelopeddesign,opensource&usingalternatemethodsoffoodproduction,ireckonwecouldcomeclosetofeeding4peopleusingthissmallspace.usingmethodssuchasaquaponics,hydroponics,orconventionalplantermethods.organic, nutrient dense, and only a walk away from your doorstep.thedomeisatimberstrutconstructionwithtimbernodes,plywoodcladding&8mmtwinwallpolycarbonateglazing,althoughalternatesubstitutionsarewelcomedtosuitonesbudgetorconstitution. being open source it is encouraged for one to develop your own ideas and systems andshare your techniques online and more importantly, with your community.thefloorareaisonly9.5sq/m.thisistoavoidhavingtoapplyforabuildingconsent,whichcanbecostly at times. although where you put this on your site & how much open space you have availablewilldeterminewhetheryouneedaconsentfromyourlocalauthority.pleasecheckifyouhaveanydoubts about planning permissions or if you have any queries. they should be glad to help.asforthefoundationrequirements.asimplestripfoundationwillshownbutthisonly to provide a level & stable surface to fix the side panels. if you plan to buildin an area that is on a steep slope, is in a flood plane, has a high water table, issubjecttoliquifactionduringearthquakesthenpleaseconsultyourlocalbuilder,architecturaldraughtsman,structuralengineer,orlocalauthorityforrecommendations.investigateyouroptions.don'tbecarelessinregardstoyour rights.cutting lists and schedules will also be shown on the plans. to make the processeasier, but it will definitely help if you have some building experience or at least. avast amount of enthusiasm. i myself am not a builder but managed, only just, tobuildtheprototypethatcamebeforethisdesign.believemewhenisayalotofmistakes were made. but that made the process all the more richer.asimentionedearlieraboutsharingyourideasanddesignsforsystems.thesame goes with construction techniques & fixings. if you have any ideas that youthink might make the dome easier to construct or better in anyway, please share&emailitwithmeatalightmouse@gmail.com,samegoeswithanyfeedback.positive, negative or anything in between.plansforthosewhouse"imperial"measurementwillbereleasedonlyifthedemandisgreatenough.otherwisemetricunitsandtimbergradeshavebeenused.if you like these plans then please feel free to share.anyenquiresemailatalightmouse@gmail.comorvisitthewebpageatwww.alightmouse.co.nz, thanks very much & good luck.anthony lightfounder & CAD monkeyalightmouse ltd`` ``` ``` ` : `,````-AND THE CONSTRUCTION-a04.05.14 beta releaseA1.1plan; floor plan#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nzplanting, small tussocksto front, make sure toconfirm max growing sizeprior to planting to avoidunnessary maintenance.entryupoverstep132note; if you do not wish to have stepsthen excavate earth around entry andslope away from the door.minimum 150mm upstand if pavedoutside. otherwise 225mm to clearedground levelspouting (optional) shown dashedfor clarity.90x45 side panels with 9/12mm plyouter & a damp proof membrane(dpm) wrap for water proofing aroundouter shell and under the floor (eachpanel to be insulated polystyrene,fibreglass, straw, wool etc)earth mounded up to sides ofgreenhouse for frost protection &added insulation & wind protection.ensure planting is done as soon aspossible to prevent erosion.(optional) 310mm x 180mm steps(ideally) possible to use timbersleepers, ensure steps are non slip.(small wire mesh or grip tape)selected shingle, cobblestone,limestone to entry floor. ensureadequate fall & drainage to preventponding.existing un-disturbed earth.dome struts above shown dashed forclarity.(optional) wind power(vertical axis if possible)80dia uPVC fresh air vent to exterior.(optional) solar panel location. if youanticipate that you might need solarpanels powering your greenhouseequipment then its a good idea to pre-wire for it during construction, even ifthey're not installed until a later date.9.5m2c.g.l 0.0f.f.l -400mm belowground levelNnote; the dome should be orientated towards the most sun. these plans were drawn for those inthe southern hemisphere, hence why it is drawn with the windows facing due north. if you are inthe northern hemisphere then one should orient the dome glazing south.a04.05.14 beta releaseA1.2plan; foundation & setout#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz6701.0451,045645340 890 1,100 890 3403,4053,5602002802001,260 1,040 1,26090 860 901.78 mradius1,1001,1001,1001,1001,1001,1001,1001,1351,135a b c d e f21345northsouthwest eastnote; make sure yourdamp proof membrane istaped around the ventpipes and is laid under thefoundation.walls above (showndashed for clarity)hatched area representsfill to be laid to create aneven surface for theflooring/paving.concrete ring foundation;200mm wide. depthvaries depending on buildlocationlocation of a cast in orm12 anchor bolt tosecure bottom plate tofoundation wall.ensure to dig smalltrench for vents goingunder the foundation lineand out to the exterior.2 layers of damp proofmembrane to be usedunder the foundation walland carried up the sideof the timber framing tounderside of ribbonboard.foundation depth to be300mm min orappropriate bearingdepth in accordance withNZS 3604:2011 (newzealand standardnumber 3604:2011).200mm70mm mincoverdpc (damp proof course)to underside of timberframingselected paving type withhardfill/ crusher dust orspecific compacted fill.90x45 bottom plate fixedto foundation withanchored bolts drilled orcast into foundation wall(2 per panel).9/12mm plywood toeither side of frame,ensure to insulatepanels.r6 stirrups @ 400crsd12d12critical note: ensure you consult with your local builder, architect, engineeror local authority regarding your specific building requirements in relation toyour land, district or local government regulations. do not get caught out. youmay require specific foundation sizes for your building location.N`` ``` ```` note: because this is a "greenhouse", there are, in a sense, no specific foundationrequirements. so if one does not wish to have a foundation and instead opts for somethinglike a 200mm wide by 100mm deep concrete strip to act as a level base with all side panelsbolted to it then that decision is up to you. however, if you are going to construct the domein an area and in soil that is prone to movement or is on a slope; then it is advised that youconsult a professional.a04.05.14 beta releaseA1.3plan; base framing plan#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz6701.0451,045645340 890 1,100 890 3403,4053,5601,260 1,040 1,26090 860 901,1001,1001,1001,1001,1001,1001,1001,1351,135a b c d e f21345northsouthwest easttype 1type 1type 1type 1type 1type 1type 1type 2type 2type 3type 3note; "type #" refers to the specificside panel types. each type differsfrom the other.panel amounts7x "type 1"2x "type 2"2x "type 3"note; refer to a1.4 for panel details& dimensions.90x45 timber framing with 1 layerof 9/12mm ply on either side.12mm recommended on exteriorside of panel.90mm insulation, insolation type tobe selected.concrete ring foundation; 200mmwide (shown dashed)location of a cast in or m12 anchorbolt to secure bottom plate tofoundation wall.only bottom plate, top plate andplate immediately above doorrequired; door to be measured &installed once frames are up and inplace.Na04.05.14 beta releaseA1.4plan; side panel construction#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz1,200401,1001,0409045 950 451,990 high9037065 45 950 451,1351,04045451904545panel type 1plan viewisometric viewnote; panel type 2 has the same height, but onlyone end matches the "panel type 1" end angle(18o). ensure when constructing panel type two thateach panel is a reflection or mirror of the other.(this only applies to panel 2). use the same fixingmethods and layout as panel 1.make 7 of this typemake 2 mirrored versions of this typepanel type 3isometric viewnote; cut top & bottom plates toan angle of 18 degrees on bothsides.18onote; do not install interior lininguntil dome structure is constructed &any necessary pre wiring is done &insulation is installed. if you want tomake the fixings last longer. usestainless steel fixings wherepossibly. or at least anythingexposed to the exterior air.140x45 top plate to support domestructure.fixings, ensure to fix ply at 300mmcentres. (recommended).9/12mm plywood.m12 coach bolts with 50mmsquare washers, cast or drilled,into the concrete foundation wall.(recommended but if you wish tothen you can shot fire them intothe foundation wall min 3 acrossthe panel.)fix each side panel together with a20mm galv strap with a minimumoverhang of 75mm each side. bothvia the top plate and top andbottom sides of the exterior.panel type 118o 35.8oplan viewpanel type 2(saving presciouspage room.)make 2 mirrored versionsof this typeplan viewpanel type 3m12 coach bolts with 50mmsquare washers, cast or drilled,into the concrete foundation wall.note; ensure to use at least 2 rowsof timber dwangs (blocking) in frame3 to allow for propper fixing of theply sheets @ 600 centres vertically.top of door frame (shown dashedfor clarity).bottom plate (shown dashed forclarity).side panel type 2 (shown dashed forclarity).9/12mm plywood.a04.05.14 beta releaseA1.5plan; strut layout#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz1,02289590907362623162a.a.a.a.a. a.a.a.a. h.b.b.b.b. b.c.c.c. c.c.c.c.c.d.d.xyyyyyxxxxxxxxxxxxxxx xxxxxxxxxyyyy yyyyyyyyyyyyzz za.b.c.d.legendhexagonal nodepentagonal nodehalf hexagonal nodequarter hexagonal nodeyx strut type 1strut type 2z strut type 3; custom sizedmade to measure.x10x5x8x2x25x25x3amounts typescritical note; when fixing struts together,fix one nail from each strut to node; thenonce dome is assembled, go around andadd in the second fixing per strut end. Thisallows some flexibility when assembling,but once the second fixing is in place youwill notice the structure becomes superrigid and subsequently very strong.yxstrut & node types18o15.7ob.a. 62mm on each side.73mm on each side.note; refer to back page fornode cutting templatesc.d.90x45 timber struts (70mm depthwhen routed), fixed to nodes with2/3.75 nails at each end of strut.SS nails to be used.140mm top plate above the sidepanels; shown dashed for clarity.fix struts with min 2 nails per strutinto each node. in order to avoidstrut timber splitting while fixingone can pre drill the holes into thestrut.side panels below; shown dashedfor clarity.8mm twinwallpolycarbonateglazing.routed edge, to allstruts & nodes.super strong flashing tape to lapover node and cover panels.sealant bead.capping node mimics the shapeof the node it is fixed to, only it is10mm wider on each side &sealed.90x45 timber struts (70mm depthwhen routed), fixed to nodes with2/3.75 nails at each end of strut.SS nails to be used.interior lining, min 6mm lining forridgitity with insulation. highest r-value possible.pre drill fixings toprevent woodsplitting whilenailing.8mm twinwallpolycarbonateglazing.capping node mimics the shapeof the strut it is fixed to, usestainless steal fixings if possible& use rubber washers to sealeach fixing.internal lining.sealant bead on inside alsofor airtightness.10mm min routededge.N`` ,` ``` /`` `` ,`: ``` /`` CLIMATE CHANGEISN'T REALGEODOMESUPERMICRO-CLIMATEFOODPRODUCINGGREENHOUSEnow growinga04.05.14 beta releaseA1.6plan; roof cladding#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz9/12mm ply, treated/painted/stained. (something to protect itfrom the elements)capping struts, cut to measure oralternatively use only flashing tapeover ply joints between panels andclad dome in something moresuited to your budget and timeconstraints.8mm twin wall polycarbonate, usescrews to fix to struts(recommended) with rubberwashers.ensure to apply flashing tape overall sheet joints before fixingcapping struts and capping nodes.spouting for water collection(optional). if you wish to collectrainwater and drain into the domeit is advised that you have adesignated collection tank with anoverflow to an exterior soak pit orgarden.selected solar powered vent (referto back page for notes on modelrecommendations) these can bebought relatively cheaply and canbe used to drip feed excess heatout of the dome.wall panels below shown dashed.capping node.111 11111 1111111111112222 22221112 23 34 41 1Nnote; the dome exterior cladding drawn above is only one of many options which youhave available to you. this option is not necessarily the easiest to fastest to constructbut it is however uniform in the fixing and the detailing.If you wish to make the exterior cladding easier for construction then you could simplyput flashing tape over all the sheet joints and clad in a butyl membrane and then applyshingles over it. or a "green roof" system, which will help to protect the building againstthe elements and also camouflage the dome from a far.investigate as many options as you want and develop them to suit your time & budget &intention.note; each panel should be cut to measure. yes its a slower process, but it will bebetter and allow for a more weather tight envelope. doing it this way also allows formargin off error due to the nature of working with timber. where measurements are notalways down the nearest mm.for the sake of material amounts for ordering you can expect the largest triangle panelstype "2" will be around 1050mm approx each length with a fillet where each nodeoccurs & for the smaller triangle panels type "1" you can expect 890mm on twosides & 1050mm approx for each length.but as mentioned above it is recommend you cut each panel to measure. thisapplies also to panels "3" & "4".CLIMATE CHANGEISN'T REALGEODOMESUPERMICRO-CLIMATEFOODPRODUCINGGREENHOUSEnow growinga04.05.14 beta releaseA1.7isometric section#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz2A1.22A1.8HOTAIRescapingfreshairfreshairfresh airfreshairDOMEINTERIORDOMEEXTERIOR90x45 timber struts (70mm depth whenrouted), fixed to nodes with 2/3.75 nails ateach end of strut. SS nails to be used.70mm insulation.3A1.84A1.81A1.8900-1200 ceiling fan, with remote &timer (ideally)minimum 150mm upstand if pavedoutside. otherwise 225mm to clearedground level90x45 side panels with 9/12mm plyouter & a damp proof membrane(dpm) wrap for water proofing aroundouter shell and under the floor (eachpanel to be insulated polystyrene,fibreglass, straw, wool etc)earth mounded up to sides ofgreenhouse for frost protection &added insulation & wind protection.ensure planting is done as soon aspossible to prevent erosion.selected shingle, cobblestone, flooringor anything that will has good thermalmass. i.e light grey cobble pavers. (notblack).80dia uPVC fresh air ventto exterior. seal with finemesh or strip for insectand vermin proofing.concrete ring foundation; shownindicatively only. consult your localdraughtsman, architect or engineer toarrange soils tests to confirm sensiblefoundation sizes.dpc.spouting direct fixed to 9/12mmplywood cladding.90x45 struts (70mm depth whenrouted), refer to the strut plan forspecific lengths and locations of strutsx & y.8mm twin wall polycarbonate glazing;taped & sealed before applyingcapping struts.solar powered extract fan.fresh air ventgrill; 1 of 2. (laidflush with paving.2 layers of damp proof membraneunder floor and foundation footingcarried up side and in behind ribbonboard.critical note: if you plan to build on a hill site then you need to consult a builder/engineer about the necessary retaining wall & foundation details. Youwould most likely have to substitute the timber panel walls with concrete block & provide a field drain to help cope with rain water and downhilldrainage.a04.05.14 beta releaseA1.8details; construction details#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz20mmselected internal lining,6-9mm ply recommended.insulation, recommendedthickness to fill entire wallcavity (90mm).140x45 top plate.timber node.strut beyond.dpm (damp proof membrane)carried up from under the floor& foundation to up theunderside of ribbon board.90x45 ribbon board, cut with15 degree slope.selected spouting direct fixedto wall panel.ply/polycarbonate panelclear flashing tape wrappedaround base of exposed edge.selected internal lining with70mm insulation. (when plyingboth sides).clear140x20 barge board,carried down either side ofentry.90x45 rafter9/12mm ply. selected finishover.flashing tape lapped overbarge board by 10mm9/12mm ply. selected finishover.flashing tape lapped underpanel by 50mm with packer inbehind to support tape. sealjoint if necessaryselected internal lining with70mm insulation.architrave around openingafter door is installed.flashing tape around opening,seal opening between doorframe & rough opening with atimber packer followed byexpanding foam and a sealantbead.sealant bead.selected door, aluminiumframe or timber. with timbertrim above exterior opening.flashing, tape or metal(personal choice) carried upbehind ply min 35mm.150402 layers of damp proof membrane to beused under the foundation wall andcarried up the side of the timber framingto underside of ribbon board.selected door, aluminiumframe or timber. with timbertrim above exterioropening.selected exterior paving, toslope away from door (ifpossible) minimum 150mmclearance below finishedfloor level.flashing tape around opening, sealopening between door frame & roughopening.selected paving type withhardfill/ crusher dust orspecific compacted fill.dpc (damp proofcourse) tounderside of timberframing2 layers of damp proofmembrane to be used underthe foundation wall andcarried up the side of thetimber framing to underside ofribbon board.tape around vent penetration indpm use tapes that arecompatible with the dpm. themanufacturer or reseller will beable to tell you what tapes aresuitable.80mm diameter uPVC pipeor similar.selected paving type withhardfill/ crusher dust orspecific compacted fill.vent/grill slightly raisedabove floor to preventany water going down init and ponding.`` ``` ````` /`` ``` `` : ,``` `` ```: ,``` `` `` ``` a04.05.14 beta releaseA1.9details; nodes & struts#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nz904590458951,0221010 1010 101070904562mm73mm125mm post125mm post10101062mm125mm post1062mm125mm post95mm deep95mm deep95mm deep95mm deepisometric viewstrut type "y"isometric viewstrut type "x"pre cutpre cuttypical cross sectionstrut x&ystrut type "x"; make 25 of thesestrut type "y" make 25 of theserouter 10mm fillet across eachstrut; will act as a small channel tofix play/polycarbonate wall into.router depth dependent onthickness of internal and externallining.note; a table router would makethe strut preparation far quickerthan a standard portable router.ask your local timber supplier ifthey can do this for you.18o18o15.7o15.7onode type "b"hexagonal nodetypical cross sectionnode type "a"pentagonal nodetypical cross sectionnote; the nodes for the initialprototype dome were cut out of125mm square posts. using atemplate it was easy to cut outeach node.you can do the same if you wish;or if you know an easier way thenfeel free to explore. each nodestarts with a circle that is 125mmdiameter.router 10mm fillet (minimum) &10-12mm deep around eachshape to allow for ply orpolycarbonate.note; alternatively you can use12mm thick timber packing in thesame shape as the node thepacking is fixed to.half hexagonal nodetypical cross sectionnode type "c"router 10mm fillet (minimum) &10-12mm deep around eachshape to allow for ply orpolycarbonate.note; this node is simply half a"type a" node. simple as.cuthere1 node1 node1 node1 nodequarter hexagonal nodetypical cross sectionnode type "d"router 10mm fillet (minimum) &10-12mm deep around eachshape to allow for ply orpolycarbonate.note; this node is simply quarterof a "type a" node. simple as.cuthere1 node 1 nodeisometric viewnode type "c"isometric viewnode type "d"isometric viewnode type "a"isometric viewnode type "b"make 5 ofthesemake 10of thesemake 8 ofthesemake 2 ofthesea04.05.14 beta releaseA1.10notes & recomendations#daterevision description#1401 | beta release | page size (A4)alightmouse ltd `````` ` : `,```` -- `,```` ````this documentation is intended for personal use only. anyone wishing to use this documentation for commercial & financial gain needs to contact alightmouse ltd for permission and approval at alightmouse@gmail.com, don't be cheeky.Alightmouse Limited Christchurch, New zealand. e:alightmouse@gmail.comw: www.alightmouse.co.nzfoundations;notes & recommendationsas stated in the plans; the foundation & what you choose tobuild, is up to your discretion. the catch with foundations is thatthey are not very often considered to be a one size fits all.your building site location, soil type & also the water table willdetermine how deep & how much reinforcing you may require.not to mention if you are on a hill site with a slope then youmay also require specific foundation design and even changingthe wall panels to concrete block.if you are on a flat site and are not worried about making thefoundation a code compliant foundation that would mirror onesimilar to a house or accessary building then as stated on thefoundation plan. a 100mmm deep by 200mm wide concrete stripwill suffice. if & only if, its purpose is to provide a level substrateto fix the panels to and act as a guide for the interior flooring.i have provide only options; its up to the builder/ownersdiscretion to make the decision.timber & timber treatments;the timber type & the level of treatment (if any) is purely up toyou. if you can, buy timber that comes from a local source that isgood at staying straight and is not prone to splitting when fixingor cutting."oregon" or "douglas fur" was the timber that was used on theprototype dome. which was a great timber for staying straightduring construction. the downside was that it was prone tosplitting when nailing or sometimes cutting.hence why it would be wise to pre drill all fixings in the struts.as for the treatments it is recommended (if you don't go with thestandard exterior timber treatment) that you at least apply twocoats of paint to to the structural framing and panels on theexterior. (not including the polycarbonate).fixings;some fixings have been specified on the plans; namely the strutfixings. any fixing that is exposed to the exterior air it isrecommended that stainless steel fixings are used. as they arehardier and less prone to corrosion. it is also recommended thatone uses rubber washes also for the exterior fixings as thisprovides another layer of water proofing.for interior fixings it is up to you what type and length, although aminimum 50-70mm fixing is recommended. galv or stainlesssteel.external cladding; plywoodit has been noted that 9-12mm plywood should be used for theexterior cladding; at least as a rigid air barrier. if you wish, youcan clad over the ply with a cladding of your choice. be it butylmembrane or shingles, a green roof, metal or fibreglass etc.what has been shown on the drawings, should, suffice inmaintaining a waterproof envelope provided proper andadequate observation and maintenance is carried out.one should be careful to observe and clean the dome and makesure that the sealants are working and that no water is leakingin. be sure to look at the manufacturers instructions with thesealants you use and make sure you use a sealant that is fit forthe job.as noted in fixings; stainless steel fixings with rubber washersshould be used for the exterior.the flashing tape for joints should also be of the grade that wouldsuit windows. there are several brands that manufacturer suchflashings tapes and they also come in a variety of widths.be sure to follow the manufacturers instructions when applyingthe tape to joints.external cladding; glazing8mm twin wall polycarbonate is the recommended for theglazing, while its not necessarily the cheapest form it provides agreat r-value (has a slow thermal transfer) that is near equal todouble glazed aluminium windows.be sure to measure and cut each panel once the structure isin place.internal flooringthe internal flooring shown is only indicative; one has the optionof choosing any type of flooring they wish. paving/cobble stonehas been shown because of its ease in laying and, if need be,removing the event of maintenance.pavers also have good thermal mass properties (not as good aswater but still, not bad).electrical systemsthere is currently no specific electrical system shown apart fromthe ceiling fan; which is advised as this improves circulation andprevents mould growing when the humidity goes above normal.it is recommended that one investigates there desired plantingsystems before building so pre-wiring can be done early andduring the construction.minimum recommendations for systems & equipmentgrowing systems can come in a variety of shapes, sizes andespecially prices. one should choose their system based on a;what they want to grow b; how much they want to grow, c: howmuch time you want to dedicate to growing & maintenance & d:how much money you can spend.however, whatever system you choose you still might benefitfrom having the following in your system- temperature & humidity measuring equipment- one ceiling fan for circulation- 1x solar panelled extract fan (about 50-80$)- 1x small dehumidifier (recommended but not critical)it is also handy to have a clipboard or pad to record thetemperatures in the greenhouse dome. how many times yourecord the temperature a day is up to you. but it is recommend,to get the best idea of how the dome performs, if thetemperature & humidity is recorded at least 2-3 times daily.if you have the ability to do this electronically then that wouldsave a lot of time.possible growing systems to researchstandard soil planters; min 300mm highpro's - better than growing outside, cheapest to set upcon's - great hiding place for bugs & pests, harder to control humidityhydroponics;pro's - better than growing outside, faster growth than standard planterscon's - limited to leafy greens and fruiting plants, supplementing also required.aquaponics;pro's - better than growing outside, very fast growth, possible edible fish (morefood). easy to maintain once system is up and running.con's - more expensivegeneral notes for "a greenhouse fulla buckminster"these open source plans will be subject to development and revisions whichwill be revised every so often, or urgently when needed. these plans are guildlines only for construction of the dome. not the specific construction plans.disclaimer ** "it is the builders & clients sole responsibility to ensure thatthe dome be built to local code requirements and in line with localbuilding and safety standards."by engaging and building the dome using these plans the builder/clientacknowledges and agrees to the disclaimer above.