Hot Insulation: Find The Right Heat Management Material

To carry out your hot insulation work, you will need to find a recognized craftsman to receive energy renovation aid. Another step in your renovation work: find the materials you will use for your hot insulation. This selection of thermal insulation materials is necessary to find the one that best suits your needs. Today, this article helps you to make a point between the different insulators and gives you the advice to choose the one that suits you best!

Five major categories of insulation

A thermal insulator is a hot insulation material that has a dual function: it allows both to prevent the heat from entering in the summer and also maintains this heat during the winter by preventing the cold from entering your home. Thermal insulators can be classified into five main families:

Mineral insulation

These are the best-known insulators: it is glass wool or rockwool insulation.

Natural insulators

These insulators, made up of wood fiber, cork, or linen, are also widely used in insulation work.

Synthetic insulation

It is either polystyrene or polyurethane.

Thin or multilayer insulation

These insulators are rather considered additional insulation. These are insulators that are not really enough to obtain a good energy performance diagnosis.

The so-called “new generation” insulators

They are relatively recent on the market: the most widely used are single-wall bricks. These brick walls, approximately 35 to 40cm thick, use thermal pallet covers. This category also includes cellular concrete, insulating formwork, insulating paints, and even airgel.

Choosing the Right Heat Management Material

Understand the magic formula: R = e/λ

To properly insulate your home, the hot insulation in piping must be energy efficient to limit heat loss in winter and coolness in summer. For this, the insulators each have their own thermal resistance (denoted R). Thermal resistance is expressed in square meters and Kelvin (unit of thermal temperature) per watt (noted m2.K/W).

It is calculated by dividing the thickness of the insulation (noted e and expressed in meters) by the thermal conductivity (noted λ and expressed in watt per meter and Kelvin (W/mK)), which determines the capacity of the material to transmit the heat or not. To ensure that your insulator is effective, its resistance R must be high, and its conductivity λ must be low.

The reaction to fire is also a criterion to consider for your insulation: Class A1 for the most resistant insulation to class F for the least resistant gives you an indication of the fire resistance. A mandatory marking and certification must indicate these elements concerning your hot insulation.

The different types of insulation

There are different types of hot insulation for your home:

  • Insulators of mineral origin (glass wool, rock wool, cellular glass, etc.)
  • Biosourced insulation ( of plant or mineral origin: cellulose, hemp, wood, etc.)
  • Organic insulators ( polystyrene, polyurethane, etc.) may present a risk of toxic smoke in a fire.
  • Reflective products, which are rather thin insulators to be used in addition to insulation

Ask an expert for advice.

The recognized tradesman you choose for your hot insulation work can help you choose your hot insulation best. Do not hesitate to ask him for advice during his mandatory technical visit, which precedes the hot insulation work. Depending on your budget, your requests, and the configuration of the space to be insulated, he can give you personalized advice for your hot insulation and refractory lining in furnaces. Similarly, for boiler replacement work, the advice of a professional can be useful, especially for the calibration of your boiler.

Check that your insulation is eligible for the tax credit.

Various tax credit schemes entitle you to get a reduction in the cost of labor and materials used for your renovation work. But for your work to be eligible for this tax credit, your craftsman must be recognized, and your lrb insulation must meet certain conditions. Its resistance must be at least equal to or greater than 7 for lost attics, 6 for converted attics, 3.7 for the walls, and 3 for the floor. The most common types of insulation eligible for the tax credit are glass, rock, hemp, cotton, wood, sheepskin, linen, PSE or XPS polystyrene, cork, duck feathers, polyurethane, wood fiber, cellulose wadding, recycled textiles, cellular glass, thin insulation.

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