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A Greenhouse(G.H.) made out with wasted materials collected and renovated from
the previous volunteers and with the will of the owner to create a place where we
collect and exchange materials to lengthen the life cycle of what we call too soon
The main material chosen for the G.H. are old wooden windows used for the
glazed part on the south facade and sides of the structure.
The main use of the little (3x6,5 m) rectangular building will be to cultivate and
grow crops, bloom seeds and keep a live garden in every season with the concept
of year round G.H.. After that the G.H. will be a space of comfort for work and chill
during the winter period, an interior as an exterior space as a real winter garden
that might be uploaded to heat other unit, as for example an office, with the
boost of the G.H. effect and the addition of a thermal mass wall to strengthen the
efficiency of the climate during the cold season.


It’s divided in several workcamp’s group depending on the tasks, the different
processes will be spread as good as possible along the entire workshop to give
the opportunity to every group to participate in much workcamps as possible.

Workcamps’ Tasks:

window and roof panels assembly

panels The panels for the the glazed south facade are assembled on the site
during the construction of the structure ready to be mounted when construction
elevation and the inner thermal mass wall are finished and ready to be mounted
with simple action by little groups of cooperation.
old windows Panel are made using by old renovated wood windows typical from
the South of France, attached in couples by light wooden frames. Most of the
windows have already been refurbished by previous volunteers, renovating the
wood, plastering new glasses when broken and painted to be protected. We will
customize the last windows depending on the need of the short sides of the
green house to complete it, in other words, we will be learning by doing how to
install the doors and windows.
roof The panels for the roof are made of light wooden frames and polycarbonate
panel to be lighter, jointed together with aluminum reused profiles (collected
in the waste mine of the camping, project on the way that we will have time
to discover and to improve together) to be stronger in resisting to bad weather

wooden structure construction

elevation The structure will be built with new woods for the main framework
of elevations and the roof, while in the secondary skeleton second hand woods
will be used, as much as possible, to reduce the costs and ecological print of our
construction. We collected different kinds of materials in our Waste Mine a place
to give new life to things, it’s time to re-use it!
junction The connection in between elements are made out with steel plates
for the main pillars and beams, while we will reuse the second hand woods and
shortcuts waste from our structures to connect secondary junction. In this step,
we will be learning how to use basic equiptments like disk saw, drill, electric
screwer etc. to cut the pieces and connect them for building the structure.
premade foundations
Before the workshop, foundations will be completed by our team to be ready for
the construction from the very beginning. For the foundation we experiment a
mixed technology of stones and bricks plinth (with material stored in the waste
mine of the camping) and wooden waterproof treated foundation, reused from old
house beams and other second hand strong woods.

discovering thermal mass

how it works? When light hits a material, some of it is converted to heat.
Thermal mass materials absorb heat via conduction, the heat slowly conducts
from the surface to the center of thermal mass which heats up by a few of degree
in a day. When the air temperature in the G.H. drops at night, the mass slowly
starts radiating the heat through conduction.
why? In this way, thermal mass regulates the temperature of the G.H. It absorbs
the excess heat during the day and slowly re-radiates it at night.
insulating thermal mass wall Along North facade we will be build an inner
thermal mass wall, 30 cm thick, with big stones and pressed soil from the local
site, to reduce costs and transport emissions. On the outside, the isolation from
the cold orientation will be provided by an insulating coat of straw and clay.
The north side part of the floor can be connected to the wall and filled with
gravel, stones and pressed soil to implement the returning of heat on the G.H.
during the night especially in winter. The thermal mass might be boosted with
a water thermal mass made out of plastic black painted tanks, reused from oil
consumption packaging, elevated in columns over the thermal wall thanks to the
secondary framework of the G.H.

controlling temperature & heat loss!

conduction We will reuse persianas to produce moveable insulating shutters to
transform the glazed facade in an insulated wall during cold winter nights, and to
shadow the south side during the hottest summer period.
air infiltration We will experiment together some insulating techniques using
natural and reused materials choosing the best option for the different heat
bridge of the structure to isolate better the interior of the greenhouse and to
prevent the loss of heating.
furnitures Plants disposition is essential for their well-being as well for
temperature’s controll during the different seasons, for this reason most of the
objects we will produce need to be movable and flexible. The interior of the G.H.
will be set with gardening furnitures, designed by participants with the support of
our team, using only second life material collected on the Waste Mine and during
frequent visit to “dechetterie”. You will choose materials from the Waste Mine:
wood, plastic, steel, cardboard and any kind of objects: tires, pipes, cases, clay
pots and bowls of any type you will be free to express your creativity to design
and create the recycled furniture for the greenhouse.

Community Life-style:

eco-friendly community
learn by working We will work around 5-6 hours each day. We will start the day
around 10am and work until 1pm. After the lunch we will be working until around
5pm. We will be learning by doing and enjoying during this process. :)
learn by sharing We will live in a community which means that we will work,
sleep, cook, eat and enjoy together. The fundamental element is to have the ‘good
mood’ and laugh all together! Each person will have her/his own turn to cook for
the others and share the joy with the team. The ingredients and the necessary
equipments will be provided by the organization. Don’t worry if you are terrified
by cooking, we’ll be there to help each other! We will be many people from
different countries, so; we will be learning different cultural practices, languages
from each other and enjoy our time as a big international family.
learn from nature As a community, we try to promote sustainable development
through reducing our impact on the environment by eco-friendly practicies such
as recycling our waste, using natural waste for compost, reducing purchase of
plastics, utilizing energy saving lighting, and only using eco-friendly cleaning
products. Be a part of our community to raise the awaraness!

Location and History:

camping Belvedere and IDC
This international eco-building workcamp will take place in the eco-campsite
founded by the IDC organisation in 2010. This cooperative has been created to
promote sustainable development, international mobility, active citizenship,
mutual aid, ecological engagement and mutual knowledge amongst other people.
lastours and the castles
The campsite is located in Lastours, few minutes away from Carcassonne, on the
border of the protected area with a stunning view on the castles’ ruins. The aim
of this campsite is to create a training centre which provides useful knowledges
to enable a sustainable development.
our vision
The cooperative team organises this workcamp to generate positive and creative
energy in the campsite and, at the same time, respect the environment through
ecological construction choices.
previous experiences
In 2015, we had the pleasure to organise our first workcamp with excellent results.
The participants succeeded in creating a common project and many of them have
remained in contact after this amazing experience.


We are searching people interested in learning by doing self-construction
processes, curious minds ready to experiment with us new technique and discover
new possibility of facing the topic on low cost and impact ecobuildings.


Workshops’ fees (food included) are 80 euro for the first week and 50 euro the
following weeks. You can sleep in your own tent for free or rent a room in a
wooden chalet or mobil-home for cheap prices. The campsite is equipped with
toilets, showers, sauna, washing machine and free wifi.


We recommend you to have a personal insurance, otherwise participation in this
event is on your own responsibility and personal risk.