During two years the family Eser built a C2C inspired home in Buch am Erlbach, Germany. It is one of the first family houses according to this design concept. Though little information for materials is available on the market, it was possible to build a house respecting the three principles of Cradle to Cradle. The result is now a beautiful, healthy house with the opportunity for a long-term maintenance of value.
We are both biologists – real tree huggers. What could be more reasonable than to express our built passion to be as much connected to nature as possible.
Intention: We wanted to live in a healthy and joyful environment, sheltered and in nature, outdoor as much as possible, in order to recreate our connection to nature.
We did not only focus on the building but the whole site, to capture the beauty around us in the garden and the reflection of the building. And we indeed feel the nourishment of nature around us every day.
As metaphor for our intention, we chose to build a house like a tree. For us, this metaphor means:
Following the intention, our goals were:
We wanted to build an aesthetic, joyful and sensuous living space. The rooms and building should be inviting and welcoming, with a friendly atmosphere. The house should integrate harmoniously into the surrounding nature and the existing built environments.
Enhance Biodiveristy in the surrounding
Protect Biodiversity with Materials used
Optimize the potential of the site (permaculture principle)
Consider climate change:
family home
Project Architects: Design draughtsman: Wolfgang Leitsch, Holzbau Franz Leitsch GmbH, 85465 Langenpreising
Accompanying architect: Helgo von Meier, VONMEIERMOHR Architekten GbR, 86938 Schondorf
Project Developer: Dr. Sonja Eser
Project Engineer & Contractor: Wolfgang Leitsch, Holzbau Franz Leitsch GmbH, 85465 Langenpreising
⁂ Integrate Biological Nutrients, Healthy Materials (Design for Disassembly, Defined Intended Use Pathway, Carbon Management)
⁂ Actively Support Biodiversity
Positive Impact
beautiful weathering and aging, no maintenance needed
FSC certified wood actively supports biodiversity in the forests
Benefits
no maintenance needed, no painting etc.
Used Materials
FSC certified larch, local production
⁂ Integrate Biological Nutrients, Enhance Air Quality and Indoor Climate, Healthy Materials (Design for Disassembly, Carbon Management, Defined Intended Use Pathway)
⁂ Integrate Renewable Energy
⁂ Actively Support Biodiversity
Positive Impact
All positive ecological impacts of wood: e.g. storage of CO2, less energy needed for construction.
Benefits
Very pleasant atmosphere in a wooden house, good aroma. Solid wood regulates the humidity of the air inside the building, creating a comfortable and balanced climate
Used Materials
Tradename: Binderholz Bausysteme GmbH, A-Salzburg. PEFC certified spruce, cross laminated timber BBS XL. 0.6% environmentally friendly glue, Purbond.
Closed production cycle, usage of high percentage renewable energy in production.
⁂ Integrate Renewable Energy
Positive Impact
Photovoltaic system producing more energy than the house needs.
All laid electric cables halogen free.
Used Materials
Tradename: Solarworld SW 255 poly. Crystalline silicon terrestrial photovoltaic modules. Take back system installed.
⁂ Healthy Materials (Design for Disassembly)
Positive Impact
No foams used in the house. All tapes or adhesives environmentally friendly. Main connections screwed. Windows fixed in with compriband. Doors only screwed.
Benefits
Healthy materials used, no emissions.
Used Materials
Tapes/adhesives for wooden connections Tradename Ampack.
⁂ Healthy Materials (Material Re-Use, Design for Disassembly, Defined Intended Use Pathway)
Positive Impact
Misapor foam glass gravel is made from used glass
Benefits
Material can be completely reused.
Used Materials
Tradename: Misapor Schaumglasschotter 10/50, CH-Landquart. Used glass with silicium carbide. Aging resistant, no toxics. Can be reused for same application.
⁂ Integrate Biological Nutrients, Healthy Materials (Design for Disassembly, Defined Intended Use Pathway, Carbon Management)
Positive Impact
Healthy insulation material. All from wood.
Benefits
No toxic flame retardants. Not flammable.
Used Materials
Woodycell, Tradename Isocell GmbH, A-Neumarkt am Wallersee. Soft wood fiber, ammonium phosphate, boric acid. Boards Tradename Pavatex, offcut from sawmills.
⁂ Healthy Materials (Material Re-Use)
Positive Impact
Rock wool water pipe insulation
Benefits
Cheaper than PVC insulation of water, no emissions, recyclable
Used Materials
Rockwool 800 Tradename: Rockwool D-Gladbeck, Take Back System installed
Positive Impact
The working space was inspired by a Chinese pavilion, open at sunny days with the view on the pond and its beautiful diversity.
Benefits
The office produces its own energy. Design for disassembly, wooden construction. Direct contact with nature.
Positive Impact
not fired in a kiln but dried directly in the sunshine
Benefits
Beautiful aesthetics, Art Noveau Period. Polishing possible, defined use period over 100 years.
Used Materials
natural materials without artificial additives
Positive Impact
Wood-burning oven as central heating system in the living room.
Benefits
Open glass so that one can see the flames. 15% warmth into the living room, wonderful in wintertime. 85% used to heat the buffer tank. Enjoyment is linked to heating the water. Can be used with logs but also automatic with pellets.
Used Materials
Kombi-Wohnheizzentrale VARIO AQUA, Tradename: SHT Salzburg
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