Is it possible to enjoy the best possible warmth in your home without blowing up the energy meter with the heating? Yes, if you choose to insulate your walls from the inside. Glass wool, cellulose wadding, polystyrene, the choice is vast. That's why we offer you a guide dedicated to the best insulation devices available at the moment.
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Our selection
"Glass wool is one of the most recommended materials for thermal insulation of walls from the inside. The ISOVER brand offers this product, which is…"
"Opt for this aluminum foil product stamped Dripex to insulate your walls properly. Lightweight and easy to maintain, it is suitable for insulating walls, but…"
"If you are looking for an insulator that will also enhance your interior design, this wall covering designed by IZODEKOR will do the trick."
"Opt for a natural insulator that has already proven itself: cork. Indeed, the brand AMORIM has had flair in opting for this material that provides…"
Glass wool is one of the most recommended materials for thermal insulation of walls from the inside. The ISOVER brand offers this product, which is one of the references in this field.
17,58 €/m2
Opt for this aluminum foil product stamped Dripex to insulate your walls properly. Lightweight and easy to maintain, it is suitable for insulating walls, but also attics and radiators.
5,99 €/M2If you're looking for a durable, easy-to-install insulation product, this aluminum foil product is perfect for you. Moreover, it is one of the most affordable on the market today. Providing thermal and acoustic insulation at the same time, it has a thin and anti-corrosive double-side. In addition, it is a healthy, non-toxic and anti-radiation material.
This insulation helps keep the house cooler in summer and warmer in winter. Resistant to water, steam and other corrosive substances, it is reusable and will allow you to considerably reduce energy consumption. This equipment is designed so that you can install it cleanly without any outside help.
If you are looking for an insulator that will also enhance your interior design, this wall covering designed by IZODEKOR will do the trick.
12,72 £ on AmazonThermal, sound and aesthetic insulation, this device designed by IZODEKOR adapts to almost all modern environments and decorative styles. Its natural stone and brick look is one of its main assets. These modern 3D wall panels offer different viewing and design possibilities and can be used for bedroom walls, living rooms or terraces.
With a thickness of 2 cm, it can be used for wet rooms, including the kitchen or bathroom. One of the advantages of this type of insulation is that it can be installed by itself without the help of a professional. A few tubes of silicone will suffice and you can get started.
Opt for a natural insulator that has already proven itself: cork. Indeed, the brand AMORIM has had flair in opting for this material that provides both thermal and phonic insulation.
9.50 € for 1 m2If your preference is for insulation made of natural materials, you should like this last choice. Indeed, this insulation is made of cork and offers an exceptional summer comfort. This comfort is due to an outstanding level of inertia. Easy to install both inside and outside, it is very resistant, including to rodents, termites and other pests that particularly appreciate this type of material. Moreover, this plate is rot-proof, waterproof and will not present any mould.
Installing a cork board is a task that can be done by anyone. You can use a single layer or two or more, depending on your estimates. Be careful not to take up too much space in the insulated room. The sheets are to be glued to the walls before being plastered over to accommodate the paint underlayments or wallpaper. If you have any doubts, ask a professional to help you.
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The best interior wall thermal insulation in 2021
The best cheap interior wall thermal insulation
The best high-end interior wall thermal insulation
Your guide :
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| TOP OF THE TOP | CHEAP | TOP OF THE LINE | EXCELLENT | |
In accordance with our commitment, this buying guide does not contain any sponsored products. |
9/10 |
7/10 |
9/10 |
8/10 |
| OUR SELECTION |
Laine de verre 160 mm ISOVER 14331
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DRIPEX aluminum foil thermal insulation(30 m2)
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IZODEKOR Polystyrene Insulation (5m2)
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AMORIM expanded cork board
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Glass wool is one of the most recommended materials for thermal insulation of walls from the inside. The ISOVER brand offers this product, which is one of the references in this field.
|
Opt for this aluminum foil product stamped Dripex to insulate your walls properly. Lightweight and easy to maintain, it is suitable for insulating walls, but also attics and radiators.
|
If you are looking for an insulator that will also enhance your interior design, this wall covering designed by IZODEKOR will do the trick.
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Opt for a natural insulator that has already proven itself: cork. Indeed, the brand AMORIM has had flair in opting for this material that provides both thermal and phonic insulation.
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Material
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Glass wool
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Aluminum
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Polystyrene
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Cork
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Thickness
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16 cm
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0.4 cm
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2 cm
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15 mm
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Format
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16x12x27 cm
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1mx30 m
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100x50x2 cm
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100x50x1,5 cm
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Type of product
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Natural
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Synthetic
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Synthetic
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Natural
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Ease of installation
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You will have the choice between different types of insulation that can be synthetic or natural. Choose according to your taste and needs. If you are comfortable with synthetic products, choose thin insulation made with aluminized plastic film. On the other hand, if you prefer natural fibers, choose cork, hemp wool or cellulose wadding.
The thickness of an interior wall insulation can influence the performance of the product. If you can find insulation with the same thermal conductivity, go for the thicker one. However, you'll also want to consider the space available. If you only want to cut back on living space by a small amount, opt for thin insulation.
The density of the product should also influence your choice. This parameter determines the penetration in the dwelling in summer. In addition, the denser it is, the less vulnerable it will be to attack by rodents and other pests, especially if you opt for an interior wall insulation made of natural fibers such as wood chips or hemp wool. Check the density of the rolls and panels before making your choice.
Also choose your insulation according to the type of work to be done. Indeed, if you are doing a renovation or constructing a new building, it would be wise to opt for rigid or semi-rigid glass wool or wood chip panels. On the other hand, if it is an already finished and functional building, you should opt for thin insulation that is also easy to install.
Beware of the estimated life span of each type of insulation. If you're going to install it in the inner walls and coat it with a plaster or paint, it had better be durable, or you're going to have to do it all over again when the insulation reaches its expiration date. This would be impractical, since this type of product is supposed to reduce waste.
The work of installing thermal insulation from the inside is presented as a process accessible to a skilled handyman. So if you have the tools and protective equipment, have fun and install the insulation on your own. However, you will need some knowledge of masonry if the insulating products you choose are to be installed inside the walls and not on the surface.
Generally speaking, it is always wiser to seek the intervention of a professional, given the stakes of this type of work. Indeed, a bad manipulation can annihilate all the efforts and allow the formation of a thermal bridge. Also, to be sure that everything works properly, it is better to ask a professional.
The family of natural thermal insulation includes products made from natural materials. These are the most popular products. There are insulators made with glass wool, rock wool, hemp wool, flax and other materials such as cork.
This family of products is popular because it allows the recycling of materials such as glass wool or wood chips. In our product selection, ISOVER 160mm glass wool and Amorim Expanded Cork Board belong to the category of exterior wall thermal insulation.
Synthetic insulation is less popular, but is appreciated by many users, especially because it is easy to install. In addition, some models ensure their insulating function while providing a significant aesthetic touch to sublimate the decoration.
These are essentially products made with polystyrene or aluminum sheets. On the current market, there are dozens of products, including IZODEKOR polystyrene insulation and Dripex aluminum foil insulation, which are included in our selection.
Thermal insulation of walls from the inside consists of attaching panels to the walls or covering them with an insulating product such as aluminium foil. This is a process that is appreciated by many users because, unlike external insulation, it does not affect the aesthetics of the façade. On the other hand, thermal insulation of walls from the inside is less effective than insulation from the outside.
Thermal insulation from the outside combines insulation work and facade renovation. The work consists of placing the insulation and covering it with a layer of plaster combined with a metal reinforcement. According to observers, this process is more effective than insulation from the inside. On the other hand, the installation work is complex and involves modifying the façade of the building to be renovated.
Thermal insulation of walls from the inside is recommended if you want to do the work without calling a professional. All you have to do is order the products and follow the installation instructions. However, this process is less effective than insulating from the outside. So if you want to get the best result, it is better to choose the external thermal insulation option.
Benefit from an optimal thermal environment
The thermal insulation of the walls from the inside allows to reduce the heat losses in a house. Once insulated, the walls of the building will be better able to maintain the ambient heat and keep a pleasant temperature in the home. In short, the installation of these insulations will optimize comfort.
Reduce energy costs for heating
If the heat is maintained properly and is not lost to the atmosphere, heating can be reduced. As a result, the energy bill will be reduced. If the building is well oriented to the sun, it may not even be necessary to run the heater. These devices will only be needed during periods of intense cold.
Reducing Greenhouse Gas Emissions
One of the main objectives of thermal renovation work is to reduce greenhouse gas emissions. 25% of these emissions come from thermal losses in buildings. Thus, by insulating walls from the outside, we contribute to a common cause that will, in the long term, regenerate the ozone layer and slow down global warming.
Recycle a material
Insulation products are mostly made with recycled materials. Thus, by opting for insulating materials such as hemp fibers or glass wool, we reduce the waste emitted by humanity. In short, the installation of thermal insulation for walls from the inside is a highly ecological act.
Improving aesthetics
Some improved interior insulation devices can help you enhance the decor of your home. Indeed, many manufacturers market products that perform well, both aesthetically and practically. So, if you're looking for a way to insulate walls while decorating them, you can opt for a product such as thin foil insulation.
In our opinion, the best brands of thermal insulation of walls from the inside in 2022 are :
Isover is one of the world leaders in thermal insulation. Belonging to the Saint-Gobain group, it employs nearly a thousand people in 39 countries. It has been manufacturing glass wool and rock wool insulation since 1936 and its products are still very popular today.
Izodekor is a brand that specializes in the design of wall coverings. Having started to design insulating coverings, it is a delight for do-it-yourselfers who like to do the work themselves. Indeed, Izodekor products are also known for their ease of installation.
Dripex is a company known mainly for the design of punching bags and other accessories used in combat sports. Having expanded its production field into insulation materials, the company has become a real success with users by offering particularly affordable and no less effective products.
Amorim is a group specialized in the transformation of cork. Floating floors, expanded cork, the products of this brand are phenomenally successful and the insulation boards are no exception to this rule. Indeed, it is one of the products of insulation of the walls by the interior preferred by the French.
Superfoil also has a strong position in the area of internal wall insulation. The group markets a range of products suitable for internal insulation. It offers a wide range of insulation products to suit all tastes and budgets.
The diagram below will help you to get an idea of the typical prices for each price range (entry-level, mid-range and high-end).
However, more expensive does not necessarily mean better.
We therefore advise you to always consult our ranking before deciding, rather than blindly relying on price ranges.
Reinforce the insulation behind the radiators
Use a heat-reflecting foil such as aluminum foil insulation to be placed behind the radiator. This prevents heat loss behind the walls. This heat that could be lost will then be distributed throughout the house. This is a good way to optimize energy consumption devoted to heating.
Use a coat of insulating paint
Once the insulation panels have been installed, opt for an insulating paint to cover it all. Indeed, these ranges of paint have the reputation of optimizing the performance of insulating materials such as glass wool or hemp fibers.
Try to get help
The installation of thermal insulation for walls from the inside is part of the work of improving energy efficiency. Therefore, you can obtain subsidies from organizations such as the ANAH, the CAF or zero rate loans under the ECO PTZ. Do not hesitate to inform yourself on the issue before starting your project.
Leave the complicated work to the professionals
Thermal insulation of walls from the inside involves installation work that a good handyman can perform. However, some materials require extreme meticulousness and protection from potential dust splashes. When in doubt, with these materials, it's best to be vigilant and opt for the intervention of a professional.
Also insulate walls and windows
Aside from walls, doors and windows are areas of energy loss that can negate all your wall insulation efforts. Consider caulking the gaps with silicone or another substance. Use curtains as well, as they can warm the house and hearts, especially when they attract attention.
No, this type of work does not require a building permit. If you want to install a few rolls of glass wool or aluminium foil, you can go ahead without fear of reprisals. However, if you are doing external insulation work or extending a property, you will need permission.
Thermal insulation of walls from the inside consists of covering the interior walls with an insulating material such as a roll of glass wool, a sheet of cork or hemp fibre. Synthetic materials can also be used if you want to cover already finished walls with a thin product that will not cut into the living area.
Yes,thermal insulation work onwalls from the inside is subsidised, as it is work to improve energy performance. For nearly a decade, many organizations such as the ANAH, the CAF and the ECO PTZ subsidize the work at very interesting rates that can go up to zero. Also, do not hesitate to look for, that will enable you to ensure the work.
A thermal bridge is a break in thethermal envelope of the building. In concrete terms, these phenomena represent faults mainly located at the junction of floors and exterior walls or at openings. The thermal bridge considerably weakens the lower thermal resistance and represents a big defect in the insulation of a building.
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