holistic design forsustainable homes• comfort• economy• ecology• quality• durability• beauty• functionality• healthSTUDIO:...
Holistic Energy Reduction Retrofit     With Passive House Tools       The MinnePHit House Minneapolis, MN [Climate Zone 6]
Minneapolis+ EnerPHit= MinnePHit
Holistic Energy Reduction Retrofit                ≠          Weatherization
Passive House InstituteDr. Wolfgang FeistRheinstraße 44/4664283 DarmstadtGermanywww.passivehouse.com                      ...
1935
•   2 stories + basement•   1,200 finished SF•   2 bedrooms•   1 bath•   5 people
Prior Airport Noise Retrofit
Windows with Storms
Mechanicals
AirtightnessInitial Test8.5 ACH50 [2,100 CFM50]
Pre-Existing Conditions
So, Where Are We?•   Structure ✓•   Weather Barrier?•   Insulation ✗•   Airtightness ✗•   Moisture Management ✓•   Ventila...
Where do we go?
Laundry List• + 3 Bedrooms• + 2 Baths• + Mudroom• Better kitchen• Better living areas• Homeschool room• Safe stairs• Weath...
How do we get there?
Sports car?
Holistic Approach•   Set goals for performance and design•   Overlay architectural program•   Make the home safe for peopl...
Energy TargetsReduce loads and air-leakage to meet Passive Houseretrofit standard (EnerPHit)• Heating load reduction: 80% +...
PragmaticConcept
Basement Floor PlanPERIMETER OF STRUCTURE ABOVE                                  UNEXCAVATED                             U...
Basement Floor PlanPERIMETER OF STRUCTURE ABOVE                                                                       1. R...
Basement Floor Plan                                  3                             UP                         1           ...
First Floor Plan   ENTRY VEST.                                                                      SOFFIT                ...
First Floor Plan   ENTRY VEST.                                                                    1. Retrofit              ...
First Floor Plan                   8   1       2             3   9                                   D   W                ...
Second Floor Plan                              OFFICEDEMO ROOF SYSTEMABOVE ENTRY                                  DEMO STA...
Second Floor Plan                                                              1. Retrofit                                 ...
Second Floor Plan                             1                     7                  2                             81. B...
High-Performance ConceptDEEP
ENERGY
REDUCTION
RETROFIT
(AFTER)                             TYPICAL
EXISTING
BUILDING
(BEFO...
TYPICAL VENTED COLD ROOF ASSEMBLY (R-77)                                                                                  ...
WEATHER RESISTANT BARRIER (WRB)                                                                                           ...
Mechanicals              •   Boiler (existing, replaced)              •   In-floor heat (existing, reused and expanded)    ...
≤1.0   Airtightness       Rough-In Test       0.87 ACH50 [267 CFM50]
≤1.0   Airtightness       Final Test       0.65 ACH50 [196 CFM50]
EnerPHit PerformanceSpecific Space Heat Demand24.5 kWh/m2 a [7.8 kBTU/ft² a]Heating Load                                   ...
What are we thinking?                             }•   Structure ✓•   Weather Barrier ✓•   Insulation ✓•   Airtightness ✓•...
Thank you!   testudio.comminnePHithouse.com
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
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MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
MinnePHit House Lecture
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MinnePHit House Lecture

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This slideshow as part of a Passive House Alliance Minneapolis/ St. Paul lecture series in the fall of 2012. It features the MinnePHit House in South Minneapolis designed by TE Studio.

The slideshow contains a lot of full-screen images but no subtitles, therefore omitting some of the information which would have been given verbally during the presentation.

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MinnePHit House Lecture

  1. 1. holistic design forsustainable homes• comfort• economy• ecology• quality• durability• beauty• functionality• healthSTUDIO:3429 Benjamin St. NEMinneapolis, MN 55418612-246-4670testudio.com CERTIFIED PASSIVE HOUSE™ CONSULTANT
  2. 2. Holistic Energy Reduction Retrofit With Passive House Tools The MinnePHit House Minneapolis, MN [Climate Zone 6]
  3. 3. Minneapolis+ EnerPHit= MinnePHit
  4. 4. Holistic Energy Reduction Retrofit ≠ Weatherization
  5. 5. Passive House InstituteDr. Wolfgang FeistRheinstraße 44/4664283 DarmstadtGermanywww.passivehouse.com +i EnerPHit and EnerPHit Certification Criteria for Energy Retrofits with Passive House ComponentsIf an energy retrofit of an existing building meets Passive House criteria (for new builds), it,too, can be certified as a Certified Passive House.It is, however, often difficult to feasibly achieve the Passive House Standard in olderbuildings for a variety of reasons. Passive House technology for relevant buildingcomponents in such buildings does, nevertheless, lead to considerable improvements withrespect to thermal comfort, structural longevity, cost-effectiveness over the building lifecycleand energy use.Buildings that have been retrofitted with Passive House components and, to a great extent,with exterior wall insulation can achieve EnerPHit certification as evidence of both buildingquality and fulfilment of specific energy values. The EnerPHit+i designation is applied ifmore than 25 % of the opaque exterior wall surface has interior insulation.
  6. 6. 1935
  7. 7. • 2 stories + basement• 1,200 finished SF• 2 bedrooms• 1 bath• 5 people
  8. 8. Prior Airport Noise Retrofit
  9. 9. Windows with Storms
  10. 10. Mechanicals
  11. 11. AirtightnessInitial Test8.5 ACH50 [2,100 CFM50]
  12. 12. Pre-Existing Conditions
  13. 13. So, Where Are We?• Structure ✓• Weather Barrier?• Insulation ✗• Airtightness ✗• Moisture Management ✓• Ventilation/ Air Quality ✗• Comfort ✗ ✗• Daylight ✗• Durability (30 years?)• Design (Sign of the Times)
  14. 14. Where do we go?
  15. 15. Laundry List• + 3 Bedrooms• + 2 Baths• + Mudroom• Better kitchen• Better living areas• Homeschool room• Safe stairs• Weather-tight envelope• Durable structure• Healthy interiors• Comfort & daylight• Low operating cost• Energy performance
  16. 16. How do we get there?
  17. 17. Sports car?
  18. 18. Holistic Approach• Set goals for performance and design• Overlay architectural program• Make the home safe for people (code compliance)• Control temperature, air, and moisture• Add ventilation• Make the envelope air- and weather-tight• Add continuous insulation to meet the energy goals• Assess moisture transfer through shell• Implement robust climate zone-appropriate assemblies
  19. 19. Energy TargetsReduce loads and air-leakage to meet Passive Houseretrofit standard (EnerPHit)• Heating load reduction: 80% +• Overall energy use reducation: 2/3• Airtightness increase: 10 X
  20. 20. PragmaticConcept
  21. 21. Basement Floor PlanPERIMETER OF STRUCTURE ABOVE UNEXCAVATED UP DEMO STAIR BATH - DEMO & SALVAGE FIXTURES DEMO FLOOR SLAB & EXCAVATE FOR NEW ASSEMBLY CHIMNEY ABOVE DEMO GLASS BLOCK DEMO AND REPLACE & FILL TO MATCH LOAD BEARING WALL FND. WALL & FOUNDATION TEMP. BRACE FLOOR 2x10s 2x10s @ 16" O.C. @ 16" O.C. LAUNDRY ROOM WORKOUT ROOMREPLACE GLASS BLOCK W/ EGRESS WNDWS
  22. 22. Basement Floor PlanPERIMETER OF STRUCTURE ABOVE 1. Retrofit 2. Reconstruction UNEXCAVATED 3. Addition UP UP DEMO STAIR BATH - DEMO & SALVAGE FIXTURES DEMO FLOOR SLAB & EXCAVATE FOR NEW ASSEMBLY CHIMNEY ABOVE DEMO GLASS BLOCK DEMO AND REPLACE & FILL TO MATCH LOAD BEARING WALL FND. WALL & FOUNDATION TEMP. BRACE FLOOR 2x10s 2x10s @ 16" O.C. @ 16" O.C. LAUNDRY ROOM WORKOUT ROOMREPLACE GLASS BLOCK W/ EGRESS WNDWS
  23. 23. Basement Floor Plan 3 UP 1 2 31. Homeschool Room2. Mechanical3. Unexcavated
  24. 24. First Floor Plan ENTRY VEST. SOFFIT REMOVE AND SALVAGE KIDS ROOM V.I.F. DOORS AS INDICATED 2xDEMO FLOOR SYSTEM DEMO FLOOR SYSTEMABOVE SLAB ABOVE SLAB DN DN UP DN DEMO STAIRS, UP AND DOWN DN REMOVE AND SALVAGE DEMO LANDING WNDWS, TYP. BRICK CHIMNEY, SEAL AIRTIGHT KITCHEN - DEMO ALL BUILT-INS - DEMO & SALVAGE EQUIPMENT LIVING ROOM DEMO EXIST. SOFFIT DINING ROOM 2x10s 2x10s V.I.F. V.I.F.
  25. 25. First Floor Plan ENTRY VEST. 1. Retrofit SOFFIT REMOVE AND SALVAGE KIDS ROOM 2. Reconstruction V.I.F. DOORS AS INDICATED 2xDEMO FLOOR SYSTEMABOVE SLAB DEMO FLOOR SYSTEM 3. Addition ABOVE SLAB D W DN DN UP DN DEMO STAIRS, UP AND DOWN DN REMOVE AND SALVAGE DEMO LANDING WNDWS, TYP. BRICK CHIMNEY, SEAL AIRTIGHT KITCHEN - DEMO ALL BUILT-INS REF - DEMO & SALVAGE EQUIPMENT LIVING ROOM DEMO EXIST. SOFFIT DINING ROOM 2x10s 2x10s V.I.F. V.I.F.
  26. 26. First Floor Plan 8 1 2 3 9 D W 10 61. Entry REF2. Powder room3. Mud room/ laundry 4 54. Living room5. Kitchen6. Dining area 77. Family area8. Covered entry9. Rear entry10.Patio
  27. 27. Second Floor Plan OFFICEDEMO ROOF SYSTEMABOVE ENTRY DEMO STAIR & LANDINGS DN DEMO DN BALCONY DN BATH - DEMO & SALVAGE FIXTURES DN BRICK CHIMNEY REMOVE AND SALVAGE DOORS AS INDICATED MASTER BEDROOM BEDROOM REMOVE AND SALVAGE WNDWS, TYP.
  28. 28. Second Floor Plan 1. Retrofit 2. Reconstruction OFFICEDEMO ROOF SYSTEMABOVE ENTRY 3. Addition DEMO STAIR & LANDINGS DN DEMO DN BALCONY DN BATH - DEMO & SALVAGE FIXTURES DN BRICK CHIMNEY REMOVE AND SALVAGE DOORS AS INDICATED MASTER BEDROOM BEDROOM REMOVE AND SALVAGE WNDWS, TYP.
  29. 29. Second Floor Plan 1 7 2 81. Bedroom 12. Bedroom 23. Master Bedroom 6 4 34. Master Closet.5. Master Bath 56. Bedroom 37. Kid’s Bath8. Toilet Room
  30. 30. High-Performance ConceptDEEP
ENERGY
REDUCTION
RETROFIT
(AFTER) TYPICAL
EXISTING
BUILDING
(BEFORE) OPTIONAL
SOLAR
THERMAL OR
SOLAR
PHOTOVOLTAIC SO ADIN R) SH MM LA (SU SUPPLY
AIR R G E PAS SIVE HEA 
S T
GA OLAR (WIN IN TER S EXTRACT
AIR )RETROFIT
CONDITION EXISTING
CONDITION INTERNAL-
ADVANCED
WINDOWS -
INSUFFICIENT
INSULATION HEAT
GAINS

AND
DOORS -
LOW-PERFORMANCE -
PEOPLE-
AIR-TIGHTNESS
LAYER 

WINDOWS
AND
DOORS -
EQUIPMT.-
CONTINUOUS
INSULATION -
AIR
LEAKAGE

PACKAGE -
NO
VENTILATION EXHAUST AIR-INTAKERETROFIT
CONDITION EXISTING
CONDITION HEAT-RECOVERY LARGE
"ACTIVE"-
WATER
PROOFING -
NO
WATER
PROOFING VENTILATION
& MECHANICAL
SYSTEM

AND
MANAGEMENT 

AND
MANAGEMENT SMALL
HEATER -
FURNACE
OR
BOILER-
ADDED
INSULATION -
NO
INSULATION
AT
AND-
MITIGATION
OF 

BELOW
GRADE

THERMAL
BRIDGES -
THERMAL
BRIDGES
  31. 31. TYPICAL VENTED COLD ROOF ASSEMBLY (R-77) TRUSS BEARING Assemblies NOTE: REMOVE EXISTING ROOF STRUCTURE, BUILD PERIMETER KNEE WALL AND SET NEW TRUSSED HIP ROOF PER STRUCTURAL DRAWINGS EXTERIOR • STANDING SEAM METAL ROOFING @ 16" O.C. • GRACE ICE & WATER SHIELD HT ROOFING UNDERLAYMENT, WEATHER RESISTANT BARRIER • 3/4" PLYWOOD STRUCTURAL SHEATHING • ATTIC AIRSPACE, OR VENT CHUTES • STRUC. TRUSSES @ 24" O.C. WITH MIN. 20" CELLULOSE INSULATION • 5/8" OSB SHEATHING, SEAL JOINTS AIRTIGHT VAPOR BARRIER, AIRTIGHTNESS LAYER • Walls a/ grade: R-10 to R-44 • 6" INSTALLATION CAVITY WITH SUSPENSION SYSTEM • 5/8" WALLBOARD CEILING INTERIOR @ OUTSIDE OF STUDWALL • Walls b/ grade: R-1 to R-30+ SNOW GUARDS PER MANUF. 20" MAINTAIN CONT. AIR BARRIER W/ SIGA VENT CHUTES BRAND TAPE AT SHEATHING TO TOP PLATE • Roof: R-20 to R-77 10 3/4" T.O. KNEEWALL +1-8" • Slab: R-1 to R-25 2 CLEAR 10 5 1/2" 7" CONT. VENTING GUTTER EXIST. ROOF FRAMING 24" TO BE DEMOD 9 1/4" MAINTAIN CONT. AIR BARRIER W/ SIGA BRAND TAPE AT SHEATHING TO TOP PLATE 1 1/2" T.O. ADDITION R.O.s +0-0 1/2" RETROFIT FRAMING T.O. EXISTING WALL 0-0" EXIST. WALL T.O. EXISTING R.O. ± 9 1/4" -0-3" RETROFIT WALL EXIST. WALL TYPICAL ABOVE GRADE WALL RETROFIT (R-44) INTERIOR • EXISTING WALLBOARD & FINISH TYPICAL ABOVE GRADE RETROFIT (R-44) • EXISTING FRAMING WITH 3-1/2" DENSE PACK INSULATION, 3.5 LBS/ CU FT ASSUMED EXISTING WALL ASSEMBLY • EXISTING SHEATHING INTERIOR • 5/8" OSB SHEATHING: SEAL JOINTS AIRTIGHT • PLASTER VAPOR BARRIER, AIRTIGHTNESS LAYER • WALLBOARD • 9-1/2" I-JOIST FURR FRAMING @ 24 O.C. WITH • 2X4 FRAMING, DENSE-PACK CELLULOSE INSULATION, 3.5 LBS/ CU FT DENSE-PACK WITH CELLULOSE INSULATION (ADDED) • 1/2" BUILDRITE SHEATHING 3.5 LBS/ CU FT • WINDWASH BARRIER • EXTERIOR SHEATHING WEATHER RESISTANT BARRIER • 3/4" VENT SPACE (1X FRAMING) RETROFIT WALL ASSEMBLY • CEMENT BOARD LAP SIDING • 5/8" OSB SHEATHING: SEAL JOINTS AIRTIGHT EXTERIOR VAPOR BARRIER, AIRTIGHTNESS LAYER CONTINUOUS 5/8" SHEATHING • 9-1/2" I-JOIST FURR FRAMING @ EXIST. STUDS WITH CONNECTS EXISTING AND NEW CONSTRUCTION DENSE-PACK CELLULOSE INSULATION, 3.5 LBS/ CU FT VAPOR BARRIER & AIRTIGHTNESS LAYER WEATHER RESISTANT BARRIER (WRB) • 1/2" FIBERBOARD SHEATHING (BILDRITE OR SIM.) AIRTIGHTNESS LAYER & VAPOR RETARDER (AB & VR) • WINDWASH BARRIER WEATHER RESISTANT BARRIER • 3/4" VENT SPACE (1X FRAMING) • CEMENT BOARD LAP SIDING EXTERIOR INSECT SCREEN7-1/2" TRIM BACKFILL TYPICAL SLAB RETROFIT (R-25) NOTE: REMOVE EXISTING SLAB & EXCAVATE TO ACCOMODATE RETROFIT ASSEMBLY INTERIOR • 4" CONCRETE SLAB WITH RADIANT IN-FLOOR HEATING SYSTEM • 6-MIL POLY TYPICAL BELOW GRADE RETROFIT (R-40) VAPOR BARRIER & AIRTIGHTNESS LAYER SEAL AIRTIGHT AT ALL JOINTS AND PROTRUSIONS INTERIOR • 6" BELOW GRADE EPS INSULATION BOARD, • 5/8" WALL BOARD COMPRESSIVE STRENGTH PER SE • 3-1/2" STEEL FRAMING @ 24" O.C. WITH • MIN. 2" GRAVEL MIN. 2" CLOSED CELL SPRAY FOAM INSULATION EXTERIOR VAPOR BARRIER & AIRTIGHTNESS LAYER • EXIST. CONCRETE WALL • (2) 3" EXTERIOR GRADE EPS INSULATION (EIFS) • STO FLEXYL (EIFS) WEATHER RESISTANT BARRIER & FINISH (TIE TO FACE OF FOOTING) EXTERIOR
  32. 32. WEATHER RESISTANT BARRIER (WRB) AIRTIGHTNESS LAYER & VAPOR RETARDER (AB & VR) 4" 5 1/2" Details DRIP EDGE 7-1/4" TRIM AIRTIGHT CONNECTION ROUGH OPENING OPT. 2X4 3/4" EXIST. R.O. 5-1/2" TRIM WINDOW R.O. ROUGH OPENING EPS WEDGE REFERENCE DETAILS: STO DRIP EDGE - STO W 710 EPS INFILL - STO W 425-2 STO FINISH PROFILE 8 7/8" (225 MM) AIRTIGHT CONNECTION L-SECTION END CAP 3-1/2" TRIM COMPRESSION TAPE 8 7/8" (225 MM) WINDOW R.O. U-SECTION END CAP 1 3/4" BLOCK R.O. TYPICAL EXTERIOR WINDOW ELEVATION TYPICAL WINDOW HEAD & SILL TYPICAL WINDOW HEAD & SILL, BASEMENT1 SCALE: 3" = 1-0" 2 SCALE: 3" = 1-0" 5 SCALE: 3" = 1-0" EXIST. ROUGH OPENING INTERIOR 1 3/4" RETROFIT ROUGH OPENING EXTENSION EXT. JAMB INT. JAMB ROUGH OPENING 1" POLYISOCYANURATE FOAM BOARD ROUGH OPENING 3/4" PLYWOOD BUCK DC260 AIR TIGHT CONNECTION AIRTIGHT 7" (180 MM) DOUBLE SIDED BUTYL TAPE TERRACE DOOR CONNECTION PER MANF. SILL COMPRESSION TAPE INTERIOR WOOD SILL L-SECTION END CAP CRIPPLE WALL WITH 5 1/2" DENSEGLASS GOLD WINDOW SET POINT SHEATHING WINDOW SET POINT STO FINISH PROFILE STO GUARD WET-FLASHING SYSTEM PLYWOOD STRIP REFERENCE DETAILS: 4" 4" EPS FOAM STRIP EXT. STEP - STO W 425-1 - STO W 501 FILL VOID WITH EPS FOAM NOTE: OPT. 2X4 VERIFY DIMENSIONS WITH ACTUAL PRODUCT MIN. 1-3/8" L-SECTION SILL END CAP EXTERIOR ALUMINUM SILL EXTERIOR TYPICAL WINDOW JAMB TYP. TERRACE DOOR SILL TYPICAL WINDOW JAMB, BASEMENT3 SCALE: 3" = 1-0" 4 SCALE: 3" = 1-0" 6 SCALE: 3" = 1-0"
  33. 33. Mechanicals • Boiler (existing, replaced) • In-floor heat (existing, reused and expanded) • Ventilation system (new) • Domestic hot water system (new plumbing)
  34. 34. ≤1.0 Airtightness Rough-In Test 0.87 ACH50 [267 CFM50]
  35. 35. ≤1.0 Airtightness Final Test 0.65 ACH50 [196 CFM50]
  36. 36. EnerPHit PerformanceSpecific Space Heat Demand24.5 kWh/m2 a [7.8 kBTU/ft² a]Heating Load ≤2518 W/m2 [5.7 Btu/h/ft²]3.78 kW [12.9 kBtu]Airtightness0.65 ACH50 [196 CFM50] ≤1.0Specific Primary Energy Demand111 kWh/m2 a [35.2 kBTU/ft² a] ≤130 QP ≤ 120 kWh/m2a + ((QH - 15 kWh/(m2a)) * 1.2)
  37. 37. What are we thinking? }• Structure ✓• Weather Barrier ✓• Insulation ✓• Airtightness ✓• Moisture Management ✓• Ventilation/ Air Quality ✓ HOLISTIC• Comfort ✓ DESIGN• Daylight ✓• Durability (50-100 years) ✓• Design ✓• Lifecycle Cost ✓• Environmental Impact ✓• Deconstructability ✓
  38. 38. Thank you! testudio.comminnePHithouse.com

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