Exterior walls are an important structure of a home that requires good insulation. Properly insulating these parts increases the thermal comfort in its home. But how to achieve wall insulation from the outside? It is important to choose the right technique and the right insulation to install. But not only that, this type of project requires a careful evaluation of insulation prices for better management of the work.
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Need to ensure better thermal comfort at home? In this case, it is necessary to plan works ofexterior insulation. Insulating the outer walls of your home helps prevent nearly 25% to 38% of heat loss. In addition, you benefit from a good insulation phonic. No more noise disturbances coming from outside. By reinforcing the facade with the appropriate insulation, you avoid thermal variations throughout the year. How to insulate the exterior wall of a house? Discover the important information to know around this subject through our article.
Choosing the right exterior wall insulation technique
Homeowners planning to insulate the facade of their home have a choice of several methods. Indeed, there are many techniques for insulating walls from the outside. Whether for a construction new or renovation, these solutions are very practical. They provide better thermal comfort at home. Just as they improve the external aesthetic aspect of its housing. If you are planning this type of work, you must start by choosing between the different possible techniques.
Insulate with facade plaster
This is a common method for strengthening the condition of exterior walls. Choose insulation with facade plaster consists of fixing insulation with pegs or an adhesive mortar. In addition, the surface must be covered with a coat of primer and primer. Finally, it is necessary to finish with a finish for a pleasant rendering. Indeed, a final coat of finishing coat must be applied in order to obtain a good result.
Install siding to insulate the exterior wall
Installing siding is an effective way to perfectly insulate a facade. This is a simple insulation technique consisting of attaching a frame to the exterior walls. Several materials are now available for making the cladding of a facade. the wood traditional or wood panels, composites, terracotta, installing metal siding… Roll or loose fill insulation is installed between the wall and the siding. It is an essential element to avoid the loss ofenergy. Moreover, it ensures good thermal and acoustic insulation.
Make a double wall for facade insulation
This is an effective technique for insulating the walls of a house. The creation of a double wall consists of setting up a load-bearing interior wall and an exterior wall serving as a facing. In addition, it is necessary to install insulation between these two structures. A air blade is to be provided between the facing walls and the insulation when carrying out the insulation work.
Find the right insulation to install on exterior walls
When installing an exterior wall insulation, it is important to choose the insulation to be installed. It is also necessary to identify the appropriate thickness to ensure the best results. How to properly insulate a facade? It is best to choose materials that are unlikely to interfere with the transfer of water vapor from the interior to the exterior. Among the different choices, biosourced classified insulation is the most recommended by professionals. These materials have a permeable character to insulate an exterior wall. Discover this table summarizing the different appropriate insulators to ensure good facade insulation:
| The different biosourced insulators | The ideal average thickness |
| wheat straw | 37cm |
| Aerated concrete | 35cm |
| hemp brick | 30cm |
| cork boards | 15cm |
| Rigid wood fiber | 15cm |
Aside from these biobased insulators, there are other materials that can be used to insulate a wall from the outside. They are also among the best choices on the market for good thermal insulation. it’s about the Rockwool and glass.
Evaluate the price of exterior wall insulation work
Exterior insulation is not easy. This is a project that requires the intervention of a specialized craftsman. But not only, this type of work needs several supplies and the respect of different procedures. The average price for insulating an exterior wall is currently between €98 and €185 per square meter. This is an approximate rate that does not include taxes. By hiring an RGE-certified craftsman, you benefit from a 5.5% VAT rate for exterior insulation work. Note that it is advisable to always ask for a home insulation quote. This approach makes it possible to know with precision the price of the work to insulate a wall from the outside.
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