Waldsee BioHaus. First Certified Passivhaus in North America

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1 Waldsee BioHaus First Certified Passivhaus in North America

2 Our Mission: To prepare young people for responsible citizenship in our global community

3 We ve been doing foreign language since A pre-collegiate program sponsored by Concordia College, Moorhead, MN Language and cultural immersion In Minnesota, near Savannah, GA, and in 8 other countries For youth, families and adults at any level of language fluency Cultural activities, global awareness, nature experiences Accredited by American Camp Association and CITA

4 Concordia Language Villages Today 14 languages offered and growing Arabic French Norwegian Chinese German Russian Danish Italian Spanish English Japanese Swedish Finnish Korean Portuguese-2008

5 Who is a villager? 6000 every summer during the school year in China/Mexico 50 states 35+ countries All economic backgrounds (25% receive financial support) All ethnicities and creeds All interested in the world and global understanding

6 Village Weekends for Educators and their students 3-4 day immersion programs for school groups In Bemidji, Minn. Igniting Enthusiasm Complementing classroom studies Fun! El Lago del Bosque

7 Living at the Villages Immersion setting Surrounded by the language of the Village 25% of staff native speakers Cultural immersion: traditions, celebrations, history, geography, activities Doing and Living the Language Meals Culturally authentic meals made from scratch Served family-style Housing Same genders of same age group are housed together with counselors.

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10 Waldsee BioHaus First Certified Passivhaus in North America

11 WALDSEE BIOHAUS Concordia Language Villages - Modern authentic German architecture - Environmental Living Center - Village residence showcasing a sustainable building approach - Passivhaus standard

12 BioHaus Facts Compact, two-story environmental education and language center with residential housing for 30 students and staff 5000 square feet (463 sq.m) of large and small classroom spaces, studio, dormitory, common room, staff apartment Showcase for cutting edge building technology such as Vacuum Insulation Panels (VIP s)

13 Comparing different standards

14 Passivhaus standard Space heat requirement: <15 kwh/(m 2 a) Primary energy requirement: <120 kwh/(m 2 a) (DHW, heating, aux. & household electricity) Pressurization Test: < 0.6 air changes/hour

15 The Passive House: A Method Rather than a Building Style by Dr. Wolfgang Feist, Passive House Institute

16 Functional Principle A low energy consumption of no more than 15 kwh/(m²a) can be achieved by following these 2 principles: Principle I: Minimize heat loss Principle II: Maximize heat gain

17 Waldsee BioHaus First Certified Passivhaus in North America Construction and Systems

18 Interior Wall Footings

19 Insulation Below Floor Slab 16 Expanded Polystyrene Board

20 Moisture Barrier and Radiant Floor Heating

21 Wall Type Below Grade: Insulated Concrete Forms (ICF)

22 Wall Type Below Grade: Insulated Concrete Forms (ICF)

23 20 Wall Below Grade

24 Sto s EFIS basecoat on CIF wall with 8 Expanded Polystyrene Board Sto Flexyl is an acrylic-based, fiber reinforced, flexible waterproofer provides multiple functions: waterproof adhesive and base coat in Sto Insulated Wall Claddings,

25 Above Grade Wall Type A: 2x12 Stick Frame

26 Above Grade Wall Type A: 2x12 Stick Frame

27 First Floor Ceiling

28 2 nd Floor Stick Frame Construction 2x6 Frame 2x12 Frame

29 20 Thick Above Grade Wall Type A Sto Gold Coat is a ready-mixed flexible waterproofing coating for use under adhesive wall claddings such as EIFS. It is applied directly to vertical above grade wall sheathing and functions as a waterproofing/air barrier when combined with Sto Gold Fill and Sto Guard Mesh

30 Above Grade Wall Type A (blue color)

31 Above Grade Wall Type B: 2x6 Stick Frame

32 Above Grade Wall Type B

33 Application of Airtight Seal Sto Gold Coat

34 Application of Airtight Seal: Sto Gold Coat

35 Continuous Air Barrier

36 Vacuum Insulation Panels

37 MICROPOROUS HIGH-PERFORMANCE THERMAL INSULATION FROM 190 C TO 1200 C Nanotechnology is one of the keys to innovation The highly efficient insulating effect of our products is based on a microporous fumed silica. Between the spherical nanoporous primary particles only punctual transition points occur. In this way, thermal conductivity by possible contact of solid particles is reduced to the largest possible extent. In addition, the created nanopores also minimize thermal transmission by convection. Specially developed infrared opacifiers additionally reduce thermal transport processes by absorption and reflection of radiation. panels are fused into multi-layer barrier films, using a special patented process. The evacuation of the material completely prevents any thermal transmission by convection. Vacupor -Vacuum insulation panels (VIP) produced in this way, reduce the overall thermal transmission to a quarter of its initial value. (source:

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39 Lower Roof Structure

40 Upper Roof Structure

41 VIP s in Lower Roof

42 2x8 additional frame to provide for slope 20 TrusJoists

43 ICYNENE spray-in insulation: 20 ICYNENE spray-in insulation: 8 Total ICYNENE insulation: 28 inches

44 Insulation Values of different Wall Types Insulation below floor slab: 16 Expanded Polystyrene Board, 4 Concrete = R-55 Below grade wall type: 12 ICF, 8 Expanded Polystyrene Board = R-55

45 Above Grade Wall Type A (20 ): - 2x12 stick frame with 12 Icynene insulation, - 5/8 plywood, - 8 Expanded Polystyrene Board = R-70 Above Grade Wall Type B (8 ): - 2x6 stick frame with 6 Icynene insulation, - 5/8 plywood, - 2 Vacuum Insulation Panels (VIP s) = R-70

46 Roof Types Lower Roof: - 12 Trus Joists with 12 Icynene Insulation, - 5/8 Plywood, - 2 VIP s, - 5/8 Plywood, = R-100 Upper Roof: - 20 Trus Joists with 20 Icynene Insulation, - 5/8 Plywood, - 8 Stick frame mit 8 Icynene Insulation, - 5/8 Plywood, = R-100

47 Window Installation

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50 Proper Installation of Frame

51 Caulking Triple-Pane Glass in Frame

52 The Blower Door Test

53 How airtight is the BioHaus? A well insulated and constructed building in Minnesota: Passivhaus standard requires: Pascal BioHaus performed to Pascal

54 Geothermal Loops from REHAU

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57 Ground Source Heat Pump

58 Earthtube/Earthregister

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61 Solarthermal Panels

62 Hot Water Storage Tank

63 Ventilation and Heat Recovery

64 Air to Air Heat 85% Efficiency

65 Green Roof

66 Laying out the drainage material

67 Extensive Green Roof Soil Mix

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69 BioHaus Activities - Waldsee

70 BioHaus & Publications

71 Waldsee BioHaus First Certified Passivhaus in North America