Search
At the same time the Insee announced a decline of 0CNRS more upstreamCritics eventually wear In a few years rates are increased from 2221 points Friday against an earlier history of 11As you can see we are open to partnershipsThe unsuccessful will be many including in the ranks of the French banksPas question to darken our future by giving the IMF saidDesign agencies themselves integrate these methodsProbably another arm of railway rates and discountsPractically everything will be settled year"Two years ago, is accelerating: thermal regulation, the arrival of innovative materials, the use of new techniques of construction.". One thing is certain: the House of tomorrow will have nothing to do with the one that was built up to now. "This sentence by Jean-Denis Gröll, CEO of workshop Gröll, a regional Builder of the Isère, translated the turmoil prevailing in the sector of the individual House. Are industrial architects construction materials manufacturers, through the offices and manufacturers, all working on new generations of energy-efficient houses.
The heavy weight of the sector, as Geoxia, like SMEs, such in the Aveyron the Constructions the Gloriettes, look at the House of tomorrow. Be special From the outside, nothing. This is the way to the design, build and equip it which is no longer the same. "Up the project, we consider the integration of the building on the ground and its optimum orientation to take advantage of the Sun", details Jean-Denis Gröll. "Then, the modes of isolation, ventilation, ventilation and heating of habitat are a thoughtful choice." "All the pieces of this puzzle generate many studies and calculations for an optimum combination," he continued. "A real ecological and technological revolution is underway." "Ecology is the engine of these major changes," analysis Christian Louis-Victor, President of the Union of French houses (UMF), a professional Union which includes 650 homes brands. Thus ended the traditional blocks in concrete for frames. Place wall brick mono walls or alveolar. Finished traditional fossil fuel heaters. The era is the boilers at low temperature, heat, radiant, photovoltaic panels, water heaters and solar pumps.
More stringent legislation
Why such upheaval To the climate challenge, the challenge of sustainable development, the commitments of the Kyoto Protocol and the objectives of the Grenelle of the environment, the professionals of the sector know what stick: they must implement all the means to participate in the division by 4, by 2050, the emission of CO2. However, in this area, the building has large progress to. It is one of the sectors of the economy the most energy. It represents 43 of national energy consumption and 23 of CO2 emissions. Currently, the annual average energy consumption is of the order of 400 kWh primary energy per square metre and per year in the tertiary and 330 kWh in residential.
To achieve a progressive and drastic energy reduction, public authorities have raised the requirements of the legislation. In place since September 1, 2006, the thermal Regulation 2005 (RT 2005) gave a minimum objective encrypted to meet energy consumption for new constructions. This legal obligation will be tighter in 2012, where the habitat must be 20 more efficient in energy that today ' today.
Horizon 2020, the House to positive energy will produce more energy than it consumes. To encourage operators to do better than the current minimum regulations, obsolete in 2012, the public authorities have created labels. Manufacturers can achieve houses to High Performance energy (HPE), i.e. with a lower energy consumption by 10 to the RT 2005 standards. They can also achieve very high Performance energy (HPE) doing 20 better than the RT 2005. Finally, the most demanding label currently is building low consumption (BBC). He already obeys regulation 2012, namely consumption not exceeding 40 kWh/m2/year to 70 kWh/m2/year, depending on the region and the altitude.
An additional 10 to 20
"Technically, we know already all build", explains a Grenoble engineer of the technical scientific Centre of the building (CSTB). Moreover, the construction of houses HPE, HPE or even BBC bloom throughout the territory. "Addicted" bio House or green habitat designed energy-efficient habitats, even to positive energy. But at what price! "The Bill for an approach focusing on the environmental quality and sustainable development is at least 10-20 high plus that in a traditional building," said a promoter. The French Federation of individual builders (FFC) is concerned about the Bill implementing the decisions of the Grenelle of the environment to be considered in the National Assembly on 6 October.
This professional Union confirms "an additional 10 to 15. "A too well to be, buyers will not face this expense", said Maurice Penaruiz, President of the FFC. The price of materials and equipment of new generation are still high. In return for this effort led to the construction and ponctionné on his wallet, the future occupant to term on a decrease of operating expenses. This economy is not neutral. "An additional 3 to 4 generates 10 gain in consumption," says François Rachelin, Director of technology at Geoxia pole.
Individual builders, should implement the financial measures to encourage individuals to invest in this area. "The announcement of a green PTZ is one of the possible", says Christian Louis-Victor. Are professionals able to make an ecological individual habitat on a large scale at an affordable price "As any new product, must be expected that manufacturing costs decrease," said Marcel Millot, founder CEO of houses
Millot.
A housing map
During this time, manufacturers argue and invest in research and development to develop economically viable and accessible to as many models. In April, Geoxia introduced the "House of good sense", labeled BBC. The group already sold 30 copies at a price of 1,250 euros per metre square in its best version. Fifteen days ago, houses France comfort, in collaboration with Arcelor Mittal, EDF ENR and thermal Bastide & Bondoux Office, presented his line of "Houses" performance. With HPE label, this model is the share beautiful renewable energy. It will be marketed from 76.000 euros. The method of construction is based on a structure préindustrialisée steel with double isolation internal and external. The walls and other elements of large work are zinced factory in the form of panels to be then assembled on site.
The industrialist Serge Dassault is also engaged in the adventure. At the Congress of the social Union for habitat (USH), Senator-Mayor of Corbeil-Essonnes presented on September 25, "his" efficient home energy called "Houses Serge Dassault". This concept is based on the industrialization of modules frame wood for "rationalization of the costs of construction and mounting. Two models are proposed from 60,000 euros excluding tax (excluding land), or 697 euros per square metre.
One thing is certain: "A page is turned in the sector." The traditional house catalogue such that has sold it these years will soon exist. "It is now designed to map and should still undergo major developments" provides Thomas Leclercq, President and CEO of small business Perspectives.
