Part 2.Roberts Power Point Pdf

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Part 2.Roberts Power Point Pdf

  1. 1. Green Roof Design and Construction an introduction California Center for Sustainable Energy September 15, 2009 Robert Thiele, Architect A.I.A. LEED AP Wednesday, September 9, 2009
  2. 2. living water collecting peddles water storage succulent chalk dudleya Arid Climate Nature Wednesday, September 9, 2009
  3. 3. Wednesday, September 9, 2009
  4. 4. The Living Building Harvest all its own energy and water Adapted to climate and site Operates pollution free Promotes health and well-being Comprised of Integrated Systems Is Beautiful Wednesday, September 9, 2009
  5. 5. James Hubbell my school of the organics 1971 Wednesday, September 9, 2009
  6. 6. 2003 Paolo Soleri 1973 solar architecture Arcosanti Cortez Junction, Arizona arc-ology architecture and ecology 1973 Wednesday, September 9, 2009
  7. 7. Cristo Umbrellas Project 1991 Wednesday, September 9, 2009
  8. 8. my first commission large overhangs for sun and rain 1978 Wednesday, September 9, 2009
  9. 9. GREEN ROOFS styles change Wednesday, September 9, 2009
  10. 10. Green Roofs embody the spirit of green building Wednesday, September 9, 2009
  11. 11. San Diego’s Climate Change 2050 Wednesday, September 9, 2009
  12. 12. Green Roofs For An Arid Coastal Climate Stormwater Management to protect against erosion Wednesday, September 9, 2009
  13. 13. Cave Store, La Jolla Green Roof on Historic Structure Wednesday, September 9, 2009
  14. 14. Create Urban Roof Top Access Wednesday, September 9, 2009
  15. 15. Urban Roof Tops Creating new real estate Wednesday, September 9, 2009
  16. 16. Urban Roof Tops Creating Access Wednesday, September 9, 2009
  17. 17. L.I.D. LOW IMPACT DEVELOPMENT STORMWATER MANAGEMENT BIOSWALES GREEN ROOFS RAINWATER HARVESTING INFILTRATION Wednesday, September 9, 2009
  18. 18. Wednesday, September 9, 2009
  19. 19. Green Roofs: Beautiful and Innovative Solutions to Stormwater Pollution A green roof is a contained green space on top of a human-made structure below, above or at grade. Wednesday, September 9, 2009
  20. 20. Green Roofs on homes and Bio-swales in median, parkways and landscaped areas could filter storm ASBS water and Area of Special Biological reduce Significance pollution La Jolla Marine Reserve Wednesday, September 9, 2009
  21. 21. Bio-Swales and Green Roofs Wednesday, September 9, 2009
  22. 22. Rainwater Harvesting Wednesday, September 9, 2009
  23. 23. GREEN ROOFS Wednesday, September 9, 2009
  24. 24. Green Roofs Academy of Science, San Francisco Wednesday, September 9, 2009
  25. 25. Green Roofs Los Angeles Green Roofs - Cooling Los Angeles A Resource Guide Environmental Affairs Department City of Los Angeles 200 N. Spring Street., Suite 2005 Los Angeles, CA 90012 Wednesday, September 9, 2009
  26. 26. Green Roofs in San Diego Permit Process Alternate Means and Methods 2008 Wednesday, September 9, 2009
  27. 27. Wednesday, September 9, 2009
  28. 28. Standards and Codes Wednesday, September 9, 2009
  29. 29. ASTM Standards Green Roof Systems E 2396 Standard Practice Saturated Water Permeability of Granular Drainage Media * E 2397 Standard Practice for Determination of Deed Loads and Live Loads E 2398 Standard Test Method for Water Capture and Media Retention or Geocomposite Drain Layers * E 2399 Maximum Media Density for Dead Load Analysis * E 2400 Selection, Installation and Maintenance Wednesday, September 9, 2009
  30. 30. Building Codes Non-Occupied Green Roofs Occupied Green Roofs Section 1607.11.2.3 Section 1004.1.1 Landscaped Roofs Occupancy Loading Table Section 1611A Section 1009.11.1 Rain Loads Stairways & Roof Access Wednesday, September 9, 2009
  31. 31. Building Permits for Green Roofs are Required Life Safety Issues Structural Issues Wednesday, September 9, 2009
  32. 32. Wednesday, September 9, 2009
  33. 33. Superlite Green Roof Non-occupied 3” extensive roof Live Loads snow, rain, wind, people, maintenance, machinery maintenance worker 20 psf Dead Loads green roof assembly 20 psf roof framing assembly 14 psf Total Dead & Live Loads 54 psf Green Roof Design Construction Wednesday, September 9, 2009
  34. 34. Superlite Green Roof Residential occupied extensive roof Live Loads residential deck 40 psf Dead Loads 3” green roof assembly 20 psf stepping stones 6 psf roof framing assembly 14 psf Total Dead & Live Loads 80 psf Green Roof Design Construction Wednesday, September 9, 2009
  35. 35. Superlite Green Roof Commercial occupied extensive roof Live Loads commercial deck 60 psf Dead Loads 3” green roof assembly 20 psf stepping stones 6 psf roof framing assembly 14 psf Total Dead & Live Loads 80 psf Green Roof Design Construction Wednesday, September 9, 2009
  36. 36. First Order of Design Decisions Determine Type of Green Roof Extensive, Semi-Intensive or Intensive Degree of Accessibility Non Occupied or Occupied Determine Size of Occupancy Influences cost Wednesday, September 9, 2009
  37. 37. Structural Issues Wednesday, September 9, 2009
  38. 38. 1. Is this an extensive or an intensive green roof? Benefits Benefits looks good plus grows food low water plants saves energy grows larger plants collects storm water shallow deep 2”- 6” deep 6” and deeper Extensive Intensive Green Roof Design Construction Wednesday, September 9, 2009
  39. 39. 2. occupied or non-occupied green roof? access plan view plan view 42” high guardrail required maintenance workers stair access ladder access fall protection provided fall protection training required OCCUPIED ROOF NON-OCCUPIED ROOF Green Roof Design Construction Wednesday, September 9, 2009
  40. 40. 3. Can the structure support the loads ? 20 psf Landscaped Roof Live Loads 20.38 psf 3” Ultra Extensive Green Roof System Dead and Live Loads 13.85 psf Roof Membrane & Structure Dead Loads No Occupancy roof 54.23 psf 54.23 psf dead and live load sheer seismic vertical loads lateral loads Green Roof Design Construction Wednesday, September 9, 2009
  41. 41. 4. Structural Retrofit No Occupancy sheer seismic vertical loads lateral loads Green Roof Design Construction Wednesday, September 9, 2009
  42. 42. The possibilities ? 0 in 12 slope to 7 degrees water retention barrels Elevation Flat Roofs Class A Roof under Section Green Roof Design Construction Wednesday, September 9, 2009
  43. 43. 1.5 in 12 slope 7 degrees water retention barrels Low Sloped Elevation Roofs 1.5 in 12 slope 7 degrees Truss Class A Roof under Section Green Roof Design Construction Wednesday, September 9, 2009
  44. 44. vegetated 4 in 12 slope water retention barrels Elevation Sloped Roof geo-tech fabric Truss Class A Roof under Section Green Roof Design Construction Wednesday, September 9, 2009
  45. 45. Typical structural failures Hire a structural engineer, don’t guess drainage failure ponding lateral support failure Structural Collapse Green Roof Design Construction Wednesday, September 9, 2009
  46. 46. Roof Drainage Ponding in heavy rainfall is the concern Minimum slope = 1/4” / ft or 2% to drain roof plan ponding Roof Drains and Secondary Roof Overflows Rain Water Loads if Drain Clogs blocked roof drain R = 5.2 (ds + dh) roof drainage Secondary Overflow water retention barrels elevation Green Roof Design Construction Wednesday, September 9, 2009
  47. 47. Drainage and overflow Green Roof Design Construction Wednesday, September 9, 2009
  48. 48. Safety - Fall Protection CAL-OSHA Section 1926.501 Duty to Have Fall Protection >15’ high Section 1926.503 Fall Protection Training Required plan view You are required to have Fall Protection maintenance workers Training and ladder access insurance for all maintenance fall protection training required workers NON-OCCUPIED ROOF Green Roof Design Construction Wednesday, September 9, 2009
  49. 49. Safety - Fall Protection access plan view 42” high guardrail required stair access fall protection provided OCCUPIED ROOF Green Roof Design Construction Wednesday, September 9, 2009
  50. 50. Fire Protection “Class A” UL rating maintained Determine fire risk zone City or County of San Diego SPRI Single Ply Roofing Industry Fire Design Standards for Green Roofs elevation 18” 18” - 36” non vegetated boundary succulent plant pallet ( avoid grasses ) irrigation plan Green Roof Design and Construction Wednesday, September 9, 2009
  51. 51. Fire Protection drought tolerant sedum irrigation system 18” non vegetated boundary Class “A” roof assembly Green Roof Design and Construction Wednesday, September 9, 2009
  52. 52. Maintenance Manual Operations Plan plan view Fall Protection Plan maintenance workers ladder access Fall Protection Training fall protection training required NON-OCCUPIED ROOF Green Roof Design Construction Wednesday, September 9, 2009
  53. 53. GREEN ROOF CONSTRUCTION CASE STUDY Wednesday, September 9, 2009
  54. 54. Re-roof - maintain existing 1 hr Class Roof A Green Roof Construction 101 Wednesday, September 9, 2009
  55. 55. TPO membrane 60 mil Green Roof Construction 101 Wednesday, September 9, 2009
  56. 56. CCW MiraDRAIN GR9200 drainage board (black) CCW 200 moisture retention mat (gray) Wednesday, September 9, 2009
  57. 57. Green Roof Construction 101 Wednesday, September 9, 2009
  58. 58. Wednesday, September 9, 2009
  59. 59. GREEN ROOF COSTS and BENEFITS Wednesday, September 9, 2009
  60. 60. CLIENT NAME GREEN ROOF COSTS ADDRESS TELEPHONE GREEN ROOF TEMPLATE <5000 SQ FT COST UNIT AREA SCOPE OF WORK REROOF / TEAR OFF $ 3,736.00 $ 2.00 1868 2" RIGID INSULATION AS REQUIRED $ 3,269.00 $ 1.75 1868 TPO 60 mil MEMBRANE $ 14,944.00 $ 8.00 1868 3" ULTRA EXTENSIVE SYSTEM $ 41,096.00 $ 22.00 1868 SUBTOTAL $ 63,045.00 STRUCTURAL ENGINEER / PLANS $ 3,736.00 $ 2.00 1868 ARCHITECT $ - 1868 PERMIT $ 1,868.00 $ 1.00 1868 TOTAL COST $ 68,649.00 $ 36.75 1868 NIC - STRUCTURAL RETROFIT Wednesday, September 9, 2009
  61. 61. Benefits Wednesday, September 9, 2009
  62. 62. Wednesday, September 9, 2009
  63. 63. Green Roofs and Graywater Wednesday, September 9, 2009
  64. 64. Wednesday, September 9, 2009
  65. 65. SUSTAINABILITY Wednesday, September 9, 2009
  66. 66. Restorative Design Sustainable Design = neutral, 100% less bad Wednesday, September 9, 2009
  67. 67. Wednesday, September 9, 2009
  68. 68. GREEN ROOF PLANTS Wednesday, September 9, 2009
  69. 69. Wednesday, September 9, 2009
  70. 70. David Solmes, Landscape Architect Paul Kephart, Rana Creek Plants Wednesday, September 9, 2009
  71. 71. PLANT LIST #1 California Nativies dudleya pulverulenta dudleya edulis senecio serpens Chalk Dudleya blue chalk iceplant senecio serpens Plants Wednesday, September 9, 2009
  72. 72. Green Roofs in Arid Climates Wednesday, September 9, 2009
  73. 73. prickly pear opuntia littoralis nassella cernua nodding neddlegrass onion grass melica imperfecta blue eyed grass sisyrinchium bellum Plants Wednesday, September 9, 2009
  74. 74. desert mallow sphaeralgea ambigua cliff spurge euphorbia misera purple three awn red skin onion silver wormwood desert marigold allium haematochiton artemisia ludoviciana baileya multiradiata Plants Wednesday, September 9, 2009
  75. 75. golden yarrow sunrose beach primrose eriophyllum confertiflorum helianthemum scoparium camissonia cheiranthifolia achillea millefolium common yarrow California aster lessingia filaginifolia Plants common yarrow Wednesday, September 9, 2009
  76. 76. GREEN BUILDING PROGRAMS Wednesday, September 9, 2009
  77. 77. LEED Leadership in Energy and Environmental Design SUSTAINABLE SITES STORMWATER DESIGN ENERGY AND ATMOSPHERE Wednesday, September 9, 2009
  78. 78. Green Roof Resources Green Roofs for Healthy Cities Wednesday, September 9, 2009
  79. 79. Note: This is not a complete program Robert Thiele, Architect A.I.A. LEED AP Wednesday, September 9, 2009
  80. 80. Wednesday, September 9, 2009
  81. 81. Wednesday, September 9, 2009
  82. 82. Wednesday, September 9, 2009
  83. 83. Wednesday, September 9, 2009
  84. 84. Wednesday, September 9, 2009
  85. 85. Wednesday, September 9, 2009
  86. 86. Wednesday, September 9, 2009

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