Cold Climate Social Housing- a case study   Jeff Armstrong - DAC International Division   Kott Group
•   2 million km2•   26 communities•   30,000 people•   Iqaluit - pop: 7,000•   No roads
•   2 million km2The scale of the housing problem...•   26 communities                                   •   30,000 people...
Health and social impacts...   Average house size - 93 sq. m.   Median number of people in a home is 6   Half of Nunavut’s...
The bottom line...  “There is a strong correlation between the state of housing in Nunavut and  domestic violence, mental ...
The Challenge To provide a high performance building enclosure system that is easy to put up quickly in Northern condition...
Nunavut Housing CorporationRFP - June 2009
Nunavut Housing CorporationRFP - June 2009                 Structure                 Thermal Control                 Vapou...
Nunavut Housing CorporationRFP - June 2009                 Structure                 Thermal Control                 Vapou...
Nunavut Housing CorporationRFP - June 2009 Structural insulated panels Plywood skins R - 50 Floor, R - 40 Walls, R - 50 Ro...
Blower Door TestingR-2000 - 1.5 ac/h@ 50 PaPassivHaus - 0.6Nunavut Housing - 0.5
Nunavut Housing CorporationRFP - June 2009 Structural insulated panels Plywood skins R-50 Floor, R-40 Walls, R-50 Roof Air...
Project TimelineReceived RFP - June 26 / 09Tender closed in Iqaluit - July 17Tender Award - August 6D1 erected at Kott Yar...
C                B                AGrade              Crawlspace   Insulated floor   1    BUILDING SECTION
C                B                AGrade              Crawlspace   Insulated floor   1    BUILDING SECTION
1   2   3   4   5   6   1    CONSTRUCTION       NORTHA                                          1                         ...
Solution           R-40 Walls (12”)           R-50 Floor (14-5/8”)           R-50 Roof (14-5/8”)
Critical month ACH (Natural)Gross Air and Vent. Energy (Mil.BTU)                                                          ...
SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick...
SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick...
SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick...
D1 Morrisburg
D1 Morrisburg
D1 Morrisburg
D1 Results Floor complete in 3.5 hrs. - 5 man crew Complete shell of house erected and tested for air leakage in 4.5 days
D2 Kott Yard
D2 Blower Door ResultsR-2000 - 1.5 AC/h @ 50 PaClient Spec - 0.5D1 - 0.67D2 - #1 - 0.21D2 - #2 - 0.19
Training Team
113 units29 units
On-site construction started August 15 - 2010115 house shells erected by December 20 - 2010
Pangnirtung - Nov. 27, 2010
Loading...                                      December 14 & 15                                           2010           ...
December 14 & 15     2010
Field Notes: 21 houses inspected Working Conditions - minus 40 deg. C / dark Some foundations off level Some walls install...
Field Notes: 21 houses inspected Working Conditions - minus 40 deg. C / dark Some foundations off level Some walls install...
What about costs?  Slightly more than stick-built  Unfamiliarity with SIPs = higher labour pricing  Underutilized local la...
Multi-unit Arctic SIP houses
Questions?jeff@dac.ca
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
Sdrhcon2011 armstrong
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Sdrhcon2011 armstrong

  1. 1. Cold Climate Social Housing- a case study Jeff Armstrong - DAC International Division Kott Group
  2. 2. • 2 million km2• 26 communities• 30,000 people• Iqaluit - pop: 7,000• No roads
  3. 3. • 2 million km2The scale of the housing problem...• 26 communities • 30,000 people • Iqaluit - pop: 7,000 • No roadsApproximately 8,500 dwellings80% are public, gov’t staff or rent subsidized housingNearly half of all houses are below Canadian housingstandardsCurrent shortfall of 3,000 unitsAverage annual new-build - 200 unitsFunding committed for 2012 - 2013 - $0.00
  4. 4. Health and social impacts... Average house size - 93 sq. m. Median number of people in a home is 6 Half of Nunavut’s homes are overcrowded or need serious repair. 4% of the population does not have a permanent home and bounce between homes often sleeping in shifts on couches, in kitchens, dining rooms or hallways Tuberculosis rate 62 times the Canadian average Highest birth rate & lowest life expectancy in Canada
  5. 5. The bottom line... “There is a strong correlation between the state of housing in Nunavut and domestic violence, mental health problems, substance abuse, poor academic performance, respiratory ailments and the spread of infectious diseases” Nunavut 10 year Inuit Housing Action Plan".…the conditions in far too many Aboriginal communities can only bedescribed as shameful. This offends our values. It is in our collective interestto turn the corner. And we must start now." The Right Honourable Adrienne Clarkson - Speech from the Throne, February 2, 2004
  6. 6. The Challenge To provide a high performance building enclosure system that is easy to put up quickly in Northern conditions at a reasonable cost.
  7. 7. Nunavut Housing CorporationRFP - June 2009
  8. 8. Nunavut Housing CorporationRFP - June 2009 Structure Thermal Control Vapour Control Air Leakage Control
  9. 9. Nunavut Housing CorporationRFP - June 2009 Structure Thermal Control Vapour Control Air Leakage Control
  10. 10. Nunavut Housing CorporationRFP - June 2009 Structural insulated panels Plywood skins R - 50 Floor, R - 40 Walls, R - 50 Roof Air leakage control without caulking or spray foam - 0.5 AC/h @ 50 Pa
  11. 11. Blower Door TestingR-2000 - 1.5 ac/h@ 50 PaPassivHaus - 0.6Nunavut Housing - 0.5
  12. 12. Nunavut Housing CorporationRFP - June 2009 Structural insulated panels Plywood skins R-50 Floor, R-40 Walls, R-50 Roof Air leakage control without caulking or spray foam - 0.5 AC/h @ 50 Pa Capable of being handled by hand or machine Designed to meet highest wind and snow loads in Nunavut “Closed Cell” foam (vapour control) Thick enough to incorporate structural elements
  13. 13. Project TimelineReceived RFP - June 26 / 09Tender closed in Iqaluit - July 17Tender Award - August 6D1 erected at Kott Yard - September 14 - 18D1 erected in Morrisburg - September 21 - 26Authorization to Proceed - October 30D2 erected at Kott Yard - December 9 - January 10Production Starts - January 4Crates to Port - April 3 - July 15Total Production: 15,336 panels; 1,420 crates
  14. 14. C B AGrade Crawlspace Insulated floor 1 BUILDING SECTION
  15. 15. C B AGrade Crawlspace Insulated floor 1 BUILDING SECTION
  16. 16. 1 2 3 4 5 6 1 CONSTRUCTION NORTHA 1 ABC
  17. 17. Solution R-40 Walls (12”) R-50 Floor (14-5/8”) R-50 Roof (14-5/8”)
  18. 18. Critical month ACH (Natural)Gross Air and Vent. Energy (Mil.BTU) 44.5 4.43 0.50 32.1Vent. Elec.month ACH (Total) (Mil.BTU) Critical Load: Heating Hrs 0.486 0.0 0.2561.1Vent. Elec. Load: Non Htg Hrs (Mil.BTU) 0.0 0.0 SolutionNet Air and Vent. Energy (Mil.BTU) H2K Modeling - Bruce Gough, Energy Building Group 44.3 16.3 ANNUAL FUEL CONSUMPTION SUMMARY Hot 2000 Version 10.31 C:DOCUME~1ADMINI~1... 29/10/2009 - 4:46:57 PM Hot 2000 Version 10.31 C:DOCUME~1ADMINI~1... 29/10/2009 - 4:46:57 PM Oil (Imp. Gal) 810.6 387.5 Electricity (Mil. Btu) Critical month ACH (Natural) 8767.4 4.43 9092.5 0.50ANNUAL SPACE HEATING SUMMARY HOUSE DATA HOT2000 Critical month ACH (Total) 0.486 0.256 COMPARISON REPORT Natural Resources CANADA 39523 22648 Version 10.31Design Heat Loss (Watts) Nunavut-MNECCH Nunavut-SIP ANNUAL FUEL CONSUMPTION SUMMARY 129.5 63.3 Oil (Imp. Gal) 810.6 387.5Gross Space Heat Loss (Mil.BTU) Electricity (Mil. Btu) 8767.4 9092.5 MNEC AIR LEAKAGE AND VENTILATION SYSTEMSSensible Occupancy COSTS (Dollars) ESTIMATED FUEL Heat Gain (Mil. Btu/day) House Volume (ft3) Envelope Surface Area (ft2) 15931.0 3949.9 15931.0 3949.9 2.40 2.40 ESTIMATED FUEL COSTS (Dollars) 27.0 24.8 Natural Infiltration Rate (ACH) 0.285 0.032 OilUsable Internal Gains (Mil.BTU) Equivalent Leakage Area (in2) 115.7 13.1 Oil Electricity 1614.4 1614.4 909.5 834.3 834.3 941.2 Central Ventilation Supply Rate (ACH) 0.040 0.270 ElectricityUsable Internal Gains Fraction (%) Central Ventilation Exhaust Rate (ACH) Other Supply Rate (ACH) 0.040 0.000 0.270 0.000 Total 20.9 909.5 ANNUAL SPACE HEATING SYSTEM PERFORMANCE 2523.9 39.1 941.2 1775.4 Other Exhaust Rate (ACH) 0.000 0.000 Space Heating Load (Mil.BTU) 93.8 34.1Usable Solar Gains (Mil.BTU) Seasonal HRV Efficiency (%) 59.0 57.7 Furnace Input (Mil.BTU) 8.7 111.0 4.4 40.7 Total Gross Air and Vent. Energy (Mil.BTU) 44.5 32.1 Pilot Light (Mil.BTU) 2523.9 0.0 1775.4 0.0Usable Solar Gains Fraction (%) Vent. Elec. Load: Heating Hrs (Mil.BTU) Vent. Elec. Load: Non Htg Hrs (Mil.BTU) 0.0 0.0 1.1 0.0 Indoor Fans (Mil.BTU) Heat Pump Input (Mil.BTU) 6.7 0.0 0.0 7.0 0.0 0.0 ANNUAL SPACE HEATING SYSTEM PERFORMANCE Net Air and Vent. Energy (Mil.BTU) 44.3 16.3 Total Input (Mil.BTU) 111.0 40.7Vent. Electrical Contribution (Mil.BTU) System COP 44.3 9.8 7.5 16.3 Space Heating Load (Mil.BTU) 93.8 34.1Auxiliary Energy Required (Mil.BTU) ANNUAL SPACE HEATING SUMMARY 93.8 34.1 Furnace Input (Mil.BTU) Design Heat Loss (Watts) Gross Space Heat Loss (Mil.BTU) 39523 129.5 22648 63.3 111.0 40.7SPACE + DHW ENERGY (Mil.BTU) Sensible Occupancy Heat Gain (Mil. Btu/day) 2.40 2.40 134.6 65.5 Pilot Light (Mil.BTU) Usable Internal Gains (Mil.BTU) 27.0 24.8 0.0 0.0R-2000 SPACE + DHW TARGET (Mil.BTU) Usable Internal Gains Fraction (%) 20.9 8.7 39.1 4.4 110.2 110.2 Indoor Fans (Mil.BTU) Usable Solar Gains (Mil.BTU) Usable Solar Gains Fraction (%) 6.7 7.0 0.0 0.0 Vent. Electrical Contribution (Mil.BTU) 44.3 16.3 Heat Pump Input (Mil.BTU) Auxiliary Energy Required (Mil.BTU) SPACE + DHW ENERGY (Mil.BTU) 93.8 134.6 34.1 65.5 0.0 0.0 R-2000 SPACE + DHW TARGET (Mil.BTU) 110.2 110.2 Total Input (Mil.BTU) 111.0 40.7 System COPENERGUIDE RATING (0 to 100) ENERGUIDE RATING (0 to 100) 76.2 86.1 9.876.2 7.5 86.1 Air Change Rate at 50 Pa. 76.2 86.1Air Change Rate at 50 Pa. 76.2 86.1 Page 1 of 2 Page 2 of 2
  19. 19. SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick on panel joints for air leakagecontrolNascor i-joist splinesAll panels thermally broken
  20. 20. SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick on panel joints for air leakagecontrolNascor i-joist splinesAll panels thermally brokenSoft foam gaskets at panel joints
  21. 21. SolutionExpanded Polystyrene core with plywood skinsSkins glued to core with urethane to providevapour controlPeel & stick on panel joints for air leakagecontrolNascor i-joist splinesAll panels thermally brokenSoft foam gaskets at panel jointsConstruction Guide & Training DVD - withInuktitut Translation
  22. 22. D1 Morrisburg
  23. 23. D1 Morrisburg
  24. 24. D1 Morrisburg
  25. 25. D1 Results Floor complete in 3.5 hrs. - 5 man crew Complete shell of house erected and tested for air leakage in 4.5 days
  26. 26. D2 Kott Yard
  27. 27. D2 Blower Door ResultsR-2000 - 1.5 AC/h @ 50 PaClient Spec - 0.5D1 - 0.67D2 - #1 - 0.21D2 - #2 - 0.19
  28. 28. Training Team
  29. 29. 113 units29 units
  30. 30. On-site construction started August 15 - 2010115 house shells erected by December 20 - 2010
  31. 31. Pangnirtung - Nov. 27, 2010
  32. 32. Loading... December 14 & 15 2010 Igloolik Baffin Island Repulse Bay Coral Rankin Harbor Iqaluit Inlet Arviat Hudson Bay ©2011 Google - Map data ©2011 Europa Technologies, Google -
  33. 33. December 14 & 15 2010
  34. 34. Field Notes: 21 houses inspected Working Conditions - minus 40 deg. C / dark Some foundations off level Some walls installed off plumb Some panels not pulled completely together
  35. 35. Field Notes: 21 houses inspected Working Conditions - minus 40 deg. C / dark Some foundations off level Some walls installed off plumb Some panels not pulled completely together Thermal imaging indicates open joints still perform well Air leakage control much better than required
  36. 36. What about costs? Slightly more than stick-built Unfamiliarity with SIPs = higher labour pricing Underutilized local labour Buildings will be monitored to confirm heating cost savings Turnkey = lower price System refinements & manufacturing efficiencies = lower price
  37. 37. Multi-unit Arctic SIP houses
  38. 38. Questions?jeff@dac.ca

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