Alternative Construction Research Guide - GCCDS

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8.5 | Rubber RoofsDESIGNEnvironmental Impact: Many rubber and syntheticmembrane systems are produced using toxic chemicalsand are laid with toxic adhesives. Most EPDM membranesare not recycled, and also not recyclable.In addition, the high solar gain from a black flat roof willraise homeowners’ heating bills substantially.Versatility/Flexibility: Rubber roofs are a very flexibleoption for flat roofs or roof decks. The large sheets of rubberare pliable and easy to smooth into place and cut onsite, making the material a good choice for complicatedroof shapes.Market Exposure: EPDM membranes are not as wellknown as built-up roofs, and builders may have to searchto find knowledgeable suppliers and installers.Code Approval: EPDM membranes are fairly new forresidential use. Builders and homeowners should checkwith their local building code officials before committingto this system.Affordability: One of the main benefits of rubber roofingis its affordability. Generally membranes cost no morethan $1/ft for the rubber, plus materials for adhesives andfasteners. Rubber roofs have inconsistent life spans, sohomeowners may have ongoing maintenance costs. Thehigh thermal gain will raise homeowners’ cooling bills.Coastal Considerations: Generally, flat roofs andrubber roofs are not the best choice for coastal areas Highwinds, torrential rains, and high solar heat gain are allproblematic for rubber roofs. However, if a project calls fora flat roof or a roof deck, EPDM membranes are a betterchoice than built-up roofs.(Fig.22 - Fig.23) A mechanically fastened EPDM system uses gasketedscrews to hold a sheet of EPDM in place. Some systems employ asecond sheet overlapped at the joint or a separate strip of membrane tocover the fasteners. This ensures no water penetrates the hole createdby the fastener.GULF COAST AVAILABILITY /LOCAL MANUFACTURERSMany construction supply stores will stock a variety ofrubber roof products. Because this construction method isoften used in commercial buildings, commercial contractorswill be more familiar with the process.
9 APPENDIX subjectsIIIIIIIVVVIVIIInsuring HomesEnergy Efficiency in HomesSite WorkFurther <strong>Research</strong>Glossary of <strong>Construction</strong> TermsEndnotesImages Used
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The Gulf Coast Community Design Stu
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factoryassembledhomesconstructionpr
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Required Equipment: A crane and lif
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Component Homes | 1.2Component Home
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DESIGNComponent Homes | 1.2Environm
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PERFORMANCEWind Load: Kits can be d
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stall whatever the factory assemble
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panelsconstructionprocessspeeddeliv
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2.1 | Wood SIPsWood SIPsOverview: S
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2.1 | Wood SIPsLife Span: The OSB a
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2.1 | Wood SIPsMM & I Construction
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2.2 | Non-Wood SIPsand full constru
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2.2 | Non-Wood SIPssome information
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2.3 | Framed PanelsThe strength of
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Stacked Unit SystemsStacked unit sy
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3STACKED UNIT SYSTEMSsubjects3.1 In
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should be done carefully, as the co
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Concrete Masonry Units (CMU) | 3.2C
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Concrete Masonry Units (CMU) | 3.2D
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AAC is naturally resistant to termi
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Framing SystemsFraming systems are
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4FRAMING SYSTEMSsubjects4.1 Convent
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which allows for expedient construc
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Advanced Wood Framing | 4.2Advanced
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esidential building codes but may n
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ut can be designed to carry increas
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Water Resistance: Steel studs are t
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Engineered Floor Trusses | 4.5Engin
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Versatility / Flexibility: Engineer
Page 69 and 70: equired, construction crews should
Page 72 and 73: Chapter 5, Elevated Foundations, is
Page 74 and 75: floorsconstructionprocessspeeddeliv
Page 76 and 77: 6.1 | 2x6 Tongue and Groove Decking
Page 78 and 79: 6.2 | Suspended Cast-in-Place Decks
Page 80 and 81: 6.2 | Suspended Cast-in-Place Decks
Page 82 and 83: 6.3 | Floor FinishesSpeed of Constr
Page 84 and 85: 6.3 | Floor FinishesGULF COAST AVAI
Page 86 and 87: insulationrequiredequipmentthermalp
Page 88 and 89: 7.1 | Exterior FinishesExterior Fin
Page 90 and 91: 7.1 | Exterior FinishesEnergy / The
Page 92 and 93: 7 .2 | SheathingSheathingOverview:
Page 94 and 95: 7 .2 | SheathingMarket Exposure: OS
Page 96 and 97: 7.3 | InsulationAfter the foam drie
Page 98 and 99: 7.3 | InsulationInstallation: Miner
Page 100 and 101: 7.4 | Interior Finishesthe job and
Page 102 and 103: 7.4 | Interior FinishesWOOD & WOOD
Page 104 and 105: 7.4 | Interior FinishesMASONRYStone
Page 106 and 107: oofsconstructionprocessspeeddeliver
Page 108 and 109: 8.1 | Radiant BarriersRoofRadiant b
Page 110 and 111: 8.1 | Radiant Barrierssometimes rea
Page 112 and 113: 8.2 | ShinglesEnergy/Thermal: Aspha
Page 114 and 115: 8.3 | Metal RoofsBecause the screws
Page 116 and 117: 8.4 | Tile RoofsPERFORMANCETile Roo
Page 118 and 119: 8.5 | Rubber RoofsINSTALLATIONRubbe
Page 122 and 123: App. I | Insuring HomesI. Insuring
Page 124 and 125: App. II | Energy Efficiency in Home
Page 126 and 127: App. II | Energy Efficiency in Home
Page 128 and 129: App. III | Site WorkIII. Site WorkT
Page 130 and 131: App. IV | Further ResearchIV. Furth
Page 132 and 133: App. V | GlossaryCompression: Physi
Page 134 and 135: App. V | GlossaryShear Wall: Walls
Page 136 and 137: App. VI | EndnotesChapter 3: Cast a
Page 138 and 139: App. VI | Endnotes2. “HardiePlank
Page 140 and 141: App. VII | Images UsedFig.8Fig.9Fig
Page 142 and 143: App. VII | Images UsedFig.16Fig.17I
Page 144 and 145: App. VII | Images UsedFig.2Fig.3Fig
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Alternative Construction Research Guide - GCCDS

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