How to choose the right insulation for the front door

The technical characteristics of insulation for the inside of the entrance doors sometimes differ quite significantly, so the question of choosing the material suitable for specific conditions remains relevant. In the process, it is necessary to take into account the operational properties, the possibility of use with significant temperature fluctuations, and other indicators.

Content

1 Cellular insulation (often referred to as corrugated cardboard)
2 Mineral wool
3 Cheap and cheerful - Styrofoam
4 The best choice is foamed polyurethane
5 Heat-reflecting foil insulation
6 Synthetic winterizer
7 Sealing tapes

Cellular insulation (often referred to as corrugated cardboard)

As a heat and sound insulation layer, it cannot demonstrate attractive results. The material is characterized by high thermal conductivity, as a result of which its use to prevent the penetration of cold into the room is not relevant. It is suitable only for the banal filling of the voids inside the door.

Mineral wool

Modern technology makes the production of environmentally friendly material a fairly simple task. The main disadvantage of even high-quality mineral wool is its hygroscopicity. It easily absorbs water, as a result of which it freezes at low temperatures. Because of this, it is rarely used in metal entrance doors, inside of which often drops of condensate form in the winter.

On a note!

It must also be remembered that over time this material breaks down, forming sections with dense lumps and air voids, which should be remembered during installation.

But in some cases, mineral wool, attracting customers with a low price, is still used for these purposes. At the same time, the stage of creating a hydrobarrier is mandatory. Sometimes a popular plastic film is used as a vapor barrier.

Cheap and cheerful - Styrofoam

Its use to combat the cold is practiced everywhere. Over time, it does not lose its shape, the foam is easily cut into suitable parts and fixed inside the entrance metal door. Manufacturers also talk about attractive soundproofing performance of the material.

On a note!

The lack of polystyrene foam for users is considered to be high flammability and the release of a copious amount of toxic substances during combustion.

A more suitable alternative may be polyurethane foam and other relevant analogs, damping with a decrease in the level of oxygen characteristic of a fire.

The best choice is foamed polyurethane

Being a completely synthetic product, polyurethane foam comes in various forms:

a cylinder in which the substance is under high pressure;
a set of individual components intended for mixing, after which the composition is poured onto a suitable horizontal surface.

Polyurethane penetrates into all cracks, providing thermal insulation of each fragment of the inner part of the front door.

The finished product in its structure can be divided into 2 types:

Clogged cells containing gas. This option holds heat better.
Opening a cell.

Heat-reflecting foil insulation

It is suitable for both metal and plastic, and for wooden products. The insulation is based on foamed polyethylene, carefully coated with a special foil that provides the proper thermal insulation properties of the structure.Directly, the foil is able to reflect up to 2/3 of the thermal radiation, and the remaining third is held by polyethylene.

On a note!

A reflective coating can be applied both on one or both sides. The first option is often preferable, since in this situation one of the parties will most likely have an adhesive base for easy installation.

All kinds of decorative coatings are suitable for decorating the surface.

Synthetic winterizer

This insulation and analogues similar to it are often mounted in wooden and metal entrance doors. In this case, one can not do without decorative upholstery.

Sealing tapes

They are applied around the perimeter of a direct box or door. This is necessary to prevent drafts.

To ensure effective thermal insulation of doors, it is recommended to use immediately 2-3 materials. For example, a sealing tape around the perimeter of the web and foam, together with a reflective foil at the base of the structure.