- 3 reasons to insulate the walls of your house
- Can we double walls ourselves?
- You want to insulate your attic at € 1?
- Financial aid to better isolate
- Choosing the right insulation
- The laying on frame: simple and fast
The thermo-acoustic insulation of the walls of buildings in new or during a renovation is today a necessity. The Optima frame installation technique developed by Isover can be implemented with ease on all types of support, even irregular.
3 reasons to insulate the walls of your house
1 - To improve its comfort. In a poorly insulated house, nothing is more disagreeable than the sensation of cold wall that one feels at the arrival of winter, and that one tries to fight by increasing the heating of a few degrees (gold, 1° C more, it is an invoice increased by 7%!). Poor also heat in summer, especially under the eaves. To isolate is to guarantee its comfort by minimizing heat exchange and keeping the same pleasant temperature, summer and winter.
2 - To save money. A quarter of the heat losses are through the walls. By increasing the thermal resistance of these by quality insulation you will significantly reduce your heating bill in winter. And in summer, this insulation will limit the use of air conditioning, very high energy consumption.
3 - To value its heritage. Effective insulation will save several energy classes to your DPE (energy performance diagnosis) and thus increase the "green value" of your home, a strong argument in a transaction ensure professionals who specify: "Today, the gap between two neighboring letters of energy label can reach 5 to 10% on the sale price of housing".
Can we double walls ourselves?
Unlike thermal insulation from the outside insulation from the inside is quite achievable by a handyman without any special skill. As long as you follow the installation instructions of the manufacturer. A solution that has the advantage of being able to be staggered financially over time. On the other hand, if you decide to carry out insulation work yourself, you can not claim to benefit from a tax credit.
To benefit from these financial aids (very favorable in 2015 and 2016), the works must be performed by a qualified company RGE (Recognized Garant Environment). In addition, the products used must have a minimum performance of R = 3.7m2/ K / W.
You want to insulate your attic at € 1?
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Financial aid to better isolate
In addition to aid provided by various bodies (Ademe, Anah, energy bonuses, etc.), the government has developed support to stimulate energy renovation projects.
Most important, the tax credit for the energy transition (CITE) allows households to deduct from 30% of the amount of expenses incurred (from the installation of the insulation system to induced work such as siding and painting) of their taxes. It is accessible to all (landlords or tenants) and provides for the refund if the tax credit is greater than the amount of tax due or if the household is not taxable.
Another aid, the zero-rate eco-loan, concerns either a package of works or works recommended to improve the "overall energy performance" of housing. It allows to undertake the work without cash advance by a loan without interest repayable over several years.
Choosing the right insulation
When buying insulating materials you must first check if they are certified (Acermi) and know their thermal resistance performance (R). Expressed in m2.K / W this value is essential for obtaining financial assistance (tax credit, eco PTZ). Indicated on glass wool rolls the coefficient R must be as high as possible, it depends on the thickness of the insulation and its capacity to transmit heat (lambda).
Also consider the environmental impact of the product. To find out more about this you can consult the Environmental and Health Declaration Form (FDES). From the extraction of raw materials to final recycling, glass wool has one of the best environmental records on the market: it avoids, during its life cycle, the rejection of a quantity of CO2 equal to more than 200 times that emitted during their manufacture.
The laying on frame: simple and fast
Easy to implement, laying on frame offers more than one benefit. The Optima Isover walls system consists of floor and ceiling mounted horizontal rails, vertical and horizontal furrings and thermal bridge breakers. Mounted frame, panels or rolls of insulation are simply skewered. this technique is required if the wall is degraded or if it has a false balance. In addition, the passage of electrical networks and piping is without bleeding or loss of performance. This arrangement is compatible with many types of siding and finishes.The framework adapts to all requirements (irregular masonry, high height,...) and allows a perfect flatness and finish of the siding by hiding any imperfections of the existing wall.