Energy Efficiency / Multi-Comfort House Potential in Buildings

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1 Energy Efficiency / Multi-Comfort House Potential in Buildings Ing. Libor Urbášek slide: ee1_000

2 Content Understand the principals of a Multi-comfort house Isover Thermal Comfort Isover Acoustic Comfort Multi-Comfort house activities MCH Designer software for Planners Pilot Project MCH in Czech republic slide: ee1_001aa

3 What are buildings for us? HOME ( Family, Children, Friends. ) WORK ( Offices, Training centers, Plants, Warehouses ) EDUCATION ( Kindergarten, Schools, Universities.) LEISURE ( Sport, Culture, Shopping, Catering.)

4 slide: ee1_003 More comfort with less energy - the Multi Comfort House by ISOVER

5 Price of oil in /100l The problem we all have in common Increased energy demand Increased energy prices Threat for economic growth Increased pollution Upper limit Lower limit

6 The period of using fossil energy is very short Use of oil and gas New period of Renewable Energy Sources Year 0 (J.C) 1665 Year 2000 Time

Source: EURIMA, ECOFIS-study "Mitigation of CO 2 Emissions from the

7 Buildings 40 Energy use in Europe Industry 28% Buildings 40% 78% of energy use in buildings can be saved by insulation Transport 32% Source: EURIMA, ECOFIS-study "Mitigation of CO 2 Emissions from the Building Stock" Beyond the EU Directive on the Energy Performance of Buildings

8 In heating our houses we are going to be more sensitive to energy prices.

9 Passive House means independency in energy Renewable Energy Sources Passive Houses can easily work with 100% renewable energy. The way to autonomy in energy.

normal car 1991: 1 liter house Passive House = 90 %

10 Multi Comfort House - More comfort with less energy 2001: 1 liter car = 80% less energy consumption than a normal car 1991: 1 liter house Passive House = 90 % less energy demand compared to a standard house. slide: ee1_015

Reduction of heating energy From standard to Multi-Comfort CO 2 = 30 kg/m²a U-value = 0.22 22 cm U-value = 0.

11 Reduction of heating energy From standard to Multi-Comfort CO 2 = 30 kg/m²a U-value = cm U-value = cm CO 2 = 2 kg/m²a 150 kwh/m²a Equivalent to 15 m³ natural gas or 15 l extra light oil 15 kwh/m²a U-value = cm Equivalent to 1.5 m³ natural gas or 1.5 l extra light oil U-value = cm U-value = cm U-value = cm slide: ee1_017

12 Build MULTI-COMFORT HOUSE Investment costs + (10 12)% Operating costs 90% less

13 Renovation of a single family house in Pettenbach (A) Exterior Wall (U-value) 0.10 W/m²K Roof Ceiling/Cellar Window Glass Windows total 0.09 W/m²K 0.13 W/m²K 0.60 W/m²K 0.77 W/m²K slide: ee1_019

extension of first floor was prefabricated wooden frame elements built 1960 Before

14 Single family house in Pettenbach/Upper-Austria Thermal insulation of exterior wall including photo voltaic panels for own electricity production The renovation and the extension of first floor was prefabricated wooden frame elements built 1960 Before renovation After renovation Annual heating cost of the whole house ,- slide: ee1_021

Multi Comfort Houses - all types of architecture are

pos architekten (planning), Treberspurg & GIWOG

15 Multi Comfort Houses - all types of architecture are possible Student apartments Molkereistr., Wien, 1020 Planner: P.ARC Baumschlager Eberle Gartenmann Raab GmbH Architects: pos architekten (planning), Treberspurg & GIWOG Gemeinnützige Industrie-Wohnungs-AG Partner (site manager) ARCH+MORE ARGE Arch. DOMENIG-MEISINGER and KOPEINIG. slide: ee1_023

Thermal Comfort & Energy Savings Multi-Comfort Houses Houses without

15 kwh/m²a Excellent thermal insulation, minimized thermal bridges Excellent

outside shading Minimized ventilation losses through ventilation systems with

16 Thermal Comfort & Energy Savings Multi-Comfort Houses Houses without classical heating or cooling system, specific heating/cooling energy demand: 15 kwh/m²a Excellent thermal insulation, minimized thermal bridges Excellent thermal performances of the windows (glass & frame, low E-coating), doors and outside shading Minimized ventilation losses through ventilation systems with heat recovery Natural night ventilation; where needed small heating or cooling system

17 Thermal Insulation Thickness in Moderate Climates: Residential Moderate climate cm* U-value 0,15 0,10 W/m²K R-value 6,67 10 m²k/w * depending on the construction and thermal conductivity of the insulation

18 Thermal Insulation Thickness in Hot Climates: Residential Hot climate 6 28 cm* U-value 0,45 0,15 W/m²K R-value 2,22 6,67 m²k/w * depending on the construction and thermal conductivity of the insulation

19 Thermal Insulation Thickness in Cold Climates: Residential Cold climate cm* U-value 0,07 0,04 W/m²K R-value 14,29 25 m²k/w * depending on the construction and thermal conductivity of the insulation

20 Example External Wall: λ (W/mK) - U-Values (W/m 2 K) - Thickness (cm) cm ,040 0,038 0,036 0,034 0,032 0,030 U-value 0,07 0,10 0,15 0,30 W/mK Rule of thumb to achieve the same U-value of 0,1 W/m 2 K: 1mW better lambda of products = 1 cm less insulation thickness

Recipe for Multi-Comfort House moderate climate + + + + 1. Thermal and acoustic insulation 2. Air tightness 3.

21 Recipe for Multi-Comfort House moderate climate Thermal and acoustic insulation 2. Air tightness 3. Best windows and doors 4. Solar gains, orientation 5. Internal gains 6. Ventilation system with heat recovery

Recipe for Multi-Comfort House Hot Climate + + + + 1. Thermal and acoustic insulation 2. Air tightness 3.

22 Recipe for Multi-Comfort House Hot Climate Thermal and acoustic insulation 2. Air tightness 3. Best windows and doors 4. Solar control, orientation 5. Natural ventilation 6. Ventilation system with cooling

The EPBD Recast ( Energy Performance of Buildings Directive) The Energy Performance of Buildings Directive (EPBD) is considered a very important legislative component of energy efficiency activities

23 The EPBD Recast ( Energy Performance of Buildings Directive) The Energy Performance of Buildings Directive (EPBD) is considered a very important legislative component of energy efficiency activities of the European Union designed to meet the Kyoto commitment and respond to issues raised in the Green Paper on energy supply security. The recent EC Action Plan for Energy Efficiency ( Realizing the Potential, Oct.2006) identifies energy efficiency in the building sector as top priority. With a key role for the EPBD in realizing the saving potential in the building sector, which is estimated at 28%, and which in turn can reduce the total EU final energy use by around 11%. Energy Efficiency Rating Very energy efficent lower running costs (92-100) (81-92) Current Potential (69-80) (55-68) (39-54) (21-38) (1-20) [H1 0] [H1 1] Source: Not energy efficent higher running costs England & Wales EU Directive 2002/91/EC The energy efficiency rating is a measure of the overall efficiency of a home. The higher the rating the more energy efficient the home is and the lower the fuel bills will be. slide: ee1_031a

24 Comfort Energy Efficient Houses without active heating From active to passive heating using insulation Active: Keep it warm by heating with energy Passive: Keep it warm trough insulation slide: ee1_033

25 Energy consumption in kwh/m²a Comparison of Buildings I Household Electricity Ventilation Electricity Hot Water Heating 0 Completely insufficient thermal protection Insufficient thermal protection Low Energy Buildings Passive House slide: ee1_034

26 Comparison of Buildings II Heat energy demand Gross floor area (HED GFA ) in kwh/m²a for a characteristic length of 1m Heating degree days (HDD) = 3400 K d kwh/m²a kwh/m²a kwh/m²a kwh/m²a < 15 Building standard The HED GFA value (heat energy demand related to the gross floor area) serves as a help to assess the thermal quality of a building - ÖNORM B (prestandard). Completely insufficient thermal protection Structurally questionable, cost of heating no longer economical (typical of rural structures, buildings dating from the early years of the so-called Gründerzeit or from 1945 to 1970 Insufficient thermal protection Thermal renovation is clearly worth the trouble (typical of residential Buildings constructed in the 50 s and 70 s of the last century)s Low-energy building Lowest-energy buildings (essential parameter of the requirement profile to be met by Passive Houses) Energy consumption in liters heating oil per square meter and year liters liters 4-5 liters 1.5 liters slide: ee1_035

27 Comparison of Buidlings III Heat energy demand Construction Exterior wall (massive wall of 25 cm) kwh/m²a kwh/m²a kwh/m²a kwh/m²a U-value and insulation thickness < W/m²K 0.40 W/m²K 0.20 W/m²K 0.10 W/m²K 0 cm 6 cm 16 cm 34 cm Roof 0.90 W/m²K 0.22 W/m²K 0.15 W/m²K 0.10 W/m²K 4 cm 22 cm 30 cm 40 cm Floors to ground 1.0 W/m²K 0.40 W/m²K 0.25 W/m²K 0.12 W/m²K 2 cm 7 cm 20 cm 30 cm Windows 2.60 W/m²K 1.70 W/m²K 1.10 W/m²K 0.80 W/m²K Single glazing Double glazing Double glazing thermo Triple glazing special frame slide: ee1_036

28 Single family house with 134 m 2 living area 2000 m³ natural gas for heating per year (15 m³ per m² year according to National Standard in some European countries) 200 m³ natural gas for heating per year (1.5 m³ per m²year according to Passive House Standard) slide: ee1_043

29 A chance for the future Multi-Comfort house Conventional House: 150 kwh/m²a According to Passive House Standard: 15 kwh/m²a With the same amount of energy of a standard house one can heat up to 10 passive houses slide: ee1_044

30 Each built-in one ton of glass wool insulation felt helps us save 6 tons of CO 2 every year Benefit for CO 2 reduction of 1 ton of glass wool 0,8 tons CO 2 for production of 1 ton glass wool 6 tons Annual savings on CO 2 trough 1 ton glass wool The production of 1 ton of glass wool releases about 0.8 t of CO 2. The annual CO 2 saving that can be realized by insulating with glass wool amounts to as much as 6 tons. Assuming a useful life of 50 years, we can thus save up to 300 t of CO 2. And this is 375 times as much as the CO 2 emission caused by production. slide: ee1_049

31 What is a Passive House? A passive house is a building in which a comfortable interior climate can be maintained without active heating and cooling systems. The house heats and cools itself, hence is "passive". (Adamson 1987 and Feist 1988). slide: ee1_083 EE

32 Criteria s of Passive House Insulation: U envelope <0,15 W/(m²K) U window <0,8 W/(m²K) without thermal bridges Ventilation >75% recuperation of heat Fresh air Old air Air tightness: n 50 < 0,6/h Extraction of air Fresh air in Heating energy demand < 15 kwh/(m²a) Air tightness < 0,6 /h Primary energy demand < 120 kwh/(m²a) Heat load < 10 W/m² Over temperature < 10 % Triple glazing low-e U g < 0,8 W/(m²K) g = % slide: ee1_084a

Definition Criteria Passive House Annual heating requirement that is less than 15 kwh (m 2 a) The combined primary energy consumption of living area of a European passive house may not exceed

33 Definition Criteria Passive House Annual heating requirement that is less than 15 kwh (m 2 a) The combined primary energy consumption of living area of a European passive house may not exceed 120 kwh (m 2 a) for heat, hot water and household electricity. With this as a starting point, additional energy requirements may be completely covered using renewable energy sources. slide: ee1_084

34 ISOVER Acoustic Comfort - Current Situation According to European Noise Policy: 20% - 80 million EU citizens are exposed to unacceptable high noise levels, which lead to sleep disturbance and other adverse health effects: high blood pressure, mental stress, heart attacks and hearing damages. Further more noise and poor room acoustic also have a negative effect on learning.

35 ISOVER Acoustic Comfort - Current Situation According to European Noise Policy: 170 million people are living in so called grey areas db(a) where noise causes serious annoyance.

Source of noise in buildings 1. Exterior noise coming from road traffic, trains and airplanes. 2. Air born noise coming from inside the house such as conversations, hi-fi, television, etc. 3.

36 Source of noise in buildings 1. Exterior noise coming from road traffic, trains and airplanes. 2. Air born noise coming from inside the house such as conversations, hi-fi, television, etc. 3. Structure born noise coming from footsteps, objects falling on the floor, house hold equipment, etc Noise from technical equipments coming from heat and ventilation, lifts, water pipes, etc.

37 ISOVER Acoustic Comfort Classes Between living units D ntw L ntw airborne sound insulation (higher figure better) impact sound insulation (lower figure better)

38 ISOVER Acoustic Comfort Classes Within one unit D ntw L ntw airborne sound insulation (higher figure better) impact sound insulation (lower figure better)

39 Construction for the Acoustic Comfort Classes (Sound Reduction Index R w ) between dwellings DnT,w +C (db) between rooms in a flat DnT,w +C (db) db 72 db 49 db 57 db 70 db

40 Construction for Acoustic Comfort Classes (Impact Sound Presser Level L ntw ) Insulation of the flat L nt,w + CI, ***) (db) within a flat L nt,w + CI, ***) (db) db 41 db 42 db

41 Acoustic Tools Contact: Andrew Koster Acoustic brochure Acoustic on intranet Tools Presentations Database of tests & certificates Trainings Project Auralization

42 Tool Books and CD Tool books Start up Moderate & Hot climate Renovation Air tightness CDs ISOVER Multi-Comfort House Details ISOVER Multi-Comfort House Designer 2.0

46 Website (s) isoline,

47 ISOVER Multi-Comfort House Student s Contest 2009 USA Pennsylvania Kazakhstan ZIM

, Finland, Kazakhstan, Latvia, Macedonia, Romania,

48 16 Countries, 24 Universities 134 Participants Austria, Bulgaria, Bosnia & Herzegovina, Croatia, Czech Rep., Finland, Kazakhstan, Latvia, Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, United Kingdom, USA (Pennsylvania)

49 Topic in 2010 Renovation with revitalisation of an old warehouse in Paris According the ISOVER Multi-Comfort House principals for moderate climate The function of the renovated object is free to choose The coming generations of architects and engineers have to be prepared for the complexity of the renovation and revitalisation projects

50 Object old warehouse in Pantin, Paris

51 Tools for supporting the students Renovation brochures ISOVER Multi-Comfort House Designer ISOVER product catalogues ISOVER website (s)

52 Documentation Submission text Poster, front page CD with Pictures of the object and the surrounding CAD as dxf and pdf file: axonometry, elevations, floor plans, sections (dxf exportable to all CAD programs) Situation

53 Time Schedule National announcement of competition at the respective universities: Start September 2009 Distribution of invitation for competition submissions as part of an information event: Start September 2009 Closing date for submissions for the national competition: March 19, 2010 in Universities National jury meeting and award ceremony: Completed by April 2, 2010 International jury meeting and award ceremony: May 19-22, 2010 in Innsbruck, Austria.

54 May (19 22 ) 2010 in Innsbruck, Austria. Exhibition of all the projects Presentation of the projects Lecture at the University Prof. W. Feist Visiting of built Passive Houses in Innsbruck Jury meeting and award ceremony Jury will be announced until the end of 2009

55 MCH Designer

68 Multi-Comfort House pilot project Czech Republic

69 Construction site location SRCH (Pardubice)

70 Vizualization

71 Construction details

72 PHPP calulation

73 Construction time schedule 08-12/2008 Foundation, Outside walls, Ceilings 05-07/ 2009 Roof, Windows instalation, Facade 08-12/ 2009 Final floors, Electricity, Heating, 01-07/ 2010 Ventilations, Partitions, Mortars, Remaining interior works Status till the end of 2008

S-G companies cooperation products share

terace) Rigips Plasterboard (partitions,

74 S-G companies cooperation products share Isover Stone wool (roof, ventilated facade, partitions, floors) XPS (perimeter) EPS (contact facade, floors, terace) Rigips Plasterboard (partitions, ceilings) Plaster mortar Weber ETICS (whole system)

75 Presentation / Communication ( ) Construction site boards Banners Main construction parts models Internet presentation On site presentation (open doors) Technical solution and details presentation Presentation on Czech and Slovak Passive House conference in Bratislava (10/09) Articles in magazines Presentations in Czech Passive House Portal Technical movies and photos from realization for future use in promotion and documentation

76 Every beginning is hard.digging strips for foundation

77 First insulation on the building site

78 Worker help to balance truck crane

79 Bearing walls from lime-sand bricks ( thickness 17,5 cm )

80 ETICS from GreyWall in thickness 30 cm

81 Detail by window frame ventilated facade

82 Roof insulation between beams 50 cm

83 Covering with fibreboards

84 Synergy EPS + Mineral Wool

85 Floor insulation 3 layer of NeoFloor ( 25 cm )

86 View from South

87 View from North

88 Some more data FRESH AIR : Recuperation PAUL with 92% efficiency HEATING : Electric boiler 3 kw AIRTIGHTNESS : Blow door test n50 < 0,31

89 Investment costs Without parcel and interior equipment 3 mil. Kč it is ,- EUR Government subsidy : ,- EUR Flooring : 200 m2 Living area : 150 m2 Cost per m2 / flooring / Cost per m2 / + subsidy / 577,- EUR 527,- EUR

90 Running costs Heating energy demand < 15 kwh/(m²a) Annual heating cost of the whole house 265,- EUR

91 Share of main investment costs INVESTMENT COST ( % ) Foundations 5% Bearing walls 25% Roof and ceilings 24% Windows 15% El. equipment + Solar 10% Water pipes, Electricity 7% Plasterboards, partition walls 6% Insulations 8%

92 Next MCH project Bicycle Museum and Shop

93 Next MCH project Commercial Wooden frame house

94 One of the best investmnemt in your life is built Multi-comfort house Many thanks for your attention! slide: ee1_999

APT building on Makartstrase, Linz AT

APT building on Makartstrase, Linz AT PROJECT SUMMARY Renovation of an apartment building built in 1958 complying with Passive House Standard. New façade with solar insulation system and closed-in, glazed