tes method limiting invasiveness during the retrofit process kimmo lylykangas kimmo lylykangas...
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TES METHODLIMITING INVASIVENESS DURING THE RETROFIT PROCESS
Kimmo LylykangasKimmo Lylykangas Architects ltd
RENEWING THE CITY: RETROFITS & BROWNFIELD DEVELOPMENTStockholm
May the 8th 2013
TES ENERGY FACADE
Forest Technology Platform Team-Up Award 2009
WoodWisdom-Net Best Project Awards 2011 “Prize for being the project with Best industrial involvement and relevance”
Deutscher Holzbaupreis 2011 kategoriassa “Komponenten / Konzepte”
Schweighofer Innovation Prize 2011 www.schweighofer-prize.org
KUVA: Thomas Preiss, http://www.apa-fotoservice.at/
SOURCE: Säynäjoki, Antti; Heinonen, Jukka & Junnila, Seppo: A Scenario analysis of the life cycle greenhouse gas emissions of a new residential area. Environ. Res. Lett. 7 (2012) 030437 p. 6.
NEW CONSTRUCTION, PASSIVE HOUSE (15 kWh/m²a SPACE HEATING)
NEW CONSTRUCTION, AVERAGE
BUILDING STOCK, AVERAGE
NEW CONSTRUCTION, LOW ENERGY (50 kWh/m²a SPACE HEATING)
RENOVATION, LOW ENERGY (50 kWh/m²a SPACE HEATING)
CARBON INVESTMENT COMPARISONCUMULATIVE CO2-eqv CALCULATION BY JUNNILA ET AL.
KOTIKULMA OY, BUILDING 10•A 4-storey residential building, first constructed in 1975•37 rental apartments and a day-care center ”Saturnus”•A relatively typical 1970’s multi-storey apartment building in Finland
load-bearing concrete element frame,exterior walls constructed of sandwich elementsthe facades need to be renovated for technical reasons
•Located in Peltosaari area, town of RiihimäkiAn area with multiple socio-economic problems typical to sub-urban areas in Finland
PASSIVE HOUSE RETROFITSaturnuksenkatu 2
PASSIVE HOUSE RETROFITSaturnuksenkatu 2
FACADE RENOVATION•Additional thermal insulation•New doors and windows•New entrance canopies•New balconies•New facade materials
NEW ROOF•New technical space and the assembly space for ventilation ducts in the attic
NEW VENTILATION SYSTEM•Centralized mechanical ventilation system with effective heat recovery [regerative heat exchanger]•New spaces for ventilation units in the attic and in a former storage-room on the 4th storey
MEETING THE PASSIVE HOUSE REQUIREMENTS•Heating energy demand ≤ 25 kWh/m²a•Reduction approximately 75 %
→ Savings in maintenance costs→ Improved thermal comfort and indoor air quality
•Measures takenAdditional thermal insulation (excluding floors)New doors and windowsAir-tightnessNew mechanical ventilation system with efficient heat recovery
PASSIVE HOUSE RETROFITSaturnuksenkatu 2
BEFORE AFTER
FLOOR W/(m²K) 0,46 0,46
WALL load bearing W/(m²K) 0,27 0,1
WALL not load bearing W/(m²K) 0,25 0,1
BALCONY DOORS W/(m²K) 1,8 0,8
ROOF W/(m²K) 0,22 0,08
WINDOWS W/(m²K) 2,9 0,66
HEAT RECOVERY ventilation % - 75
PASSIVE HOUSE RETROFITSaturnuksenkatu 2
RENOVATION WITH PRE-FAB FACADE ELEMENTS•Part of the work can be carried out in the element factory instead of the building site
→ Less disturbance for the tenants→ Shorter duration of the on-site construction work possible
•The pre-fabrication includedIn-take air ducts, integrated in the wall elements
Doors and windowsFacade material (first layer of plaster rendering)
PASSIVE HOUSE RETROFITSaturnuksenkatu 2
laser scanning3D modelling
image: Aalto University / Wood Construction
image: Pöyry Oy / Suomen mallinnusmittaus
image: Pöyry Oy / Suomen mallinnusmittaus
Image: Kimmo Lylykangas Architects ltd
dismantling of the old facade
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
Image: Simon le Roux, Aalto University
architectural design
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
facade elements
© Paroc Group 29Image: Jukka Sevon, Paroc Oy Ab
© Paroc Group 30Image: Jukka Sevon, Paroc Oy Ab
© Paroc Group 31Image: Jukka Sevon, Paroc Oy Ab
© Paroc Group 32
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
19/04/23 © Paroc Group 35
Image: Jukka Sevón, Paroc Oy Ab
Image: Kimmo Lylykangas Architects ltd
Image: Simon le Roux, Aalto University
Riihimäki Innova projectphotos: Simon le Roux 28.9.2011
Roof elements on-site assembly
Image: Simon le Roux, Aalto University
Images: Simon le Roux, Aalto University
Image: Kimmo Lylykangas Architects ltd
Image: Jukka Sevón, Paroc Oy Ab
Image: Jukka Sevón, Paroc Oy Ab
after renovation
Image: Jukka Sevón, Paroc Oy Ab
Image: Kimmo Lylykangas Architects ltd
Image: Kimmo Lylykangas Architects ltd
• Laser scanning and high precision in element manufacturing enable pre-fabrication in retrofitting
• Vertical elementation and thick insulation layers enable the integration of ventilation ducts (in-take air ductwork) in facade elements
• Pre-fabrication can make the duration of the on-site construction work shorter and reduce both the costs and the disturbance for tenants
• We were expecting problems in...precision and element installationductwork integration and joints
• The problems were met in...moisture controlbuilding site arrangementsensuring the safety and the comfort of the tenants
PILOT PROJECT EXPERIENCES
• Better coordination and pacing of three work phases:dismantlingstraightening of surfaceselement installation
•Minimizing the on-site work and avoiding the need for storaging of materials
•Creating guidelines for ”living in the building site” , for examplemoisture control
maximum noise levelimpurities in the ventilation system during the construction
worktenant safety during the construction work
•Ensuring good indoor air quality and thermal comfort during every phase of the retrofit•Separation of the areas for construction work and for tenants
HOW TO DEVELOP THE PROCESS
MORE INFORMATION ON PRE-FAB RETROFITS:
www.paroc.fi/kampanjat/innova-projekti [in Finnish only]
www.tesenergyfacade.comwww.e2rebuild.eu
www.ecbcs.org/annexes/annex50www.empa-ren.ch/A50
THANK YOU FOR YOUR ATTENTION