Insulation of the old house from the whipped trails (slag) in forms.

I have an old house, Walls whipped in forms from the trails of waste from the electric room, From the inside of the wall, air emptiness and brick arranged on the edge, How to insulate such a house so that there is no mushroom?

To insulate an old house built of slag and brick walls, Appropriate techniques should be used, which will prevent moisture and mold. Here are some key steps:

1. Analysis of the current state of the walls.
Check, whether the walls are tight and whether there is no visible damage, through which moisture could penetrate.

Make sure, that rainwater drainage system (gutters, gutter) works properly, To reduce the risk of moisture.

2. Choosing the right insulation.

Insulation from the inside:

The best solution is to use closed -cell polyurethane foam. It is resistant to moisture and creates a barrier for air flow, which reduces the risk of condensation on cold surfaces.

You can also use mineral wool (e.g. rocky), which is naturally resistant to moisture and is not conducive to the development of mold.

Insulation from the outside:

If possible, It is worth considering external insulation with polystyrene boards or extruded polystyrene (XPS). External insulation reduces the risk of condensation inside the wall, Because it keeps the wall at a higher temperature.

3. Air void behavior.
The air emptiness in the wall has an insulation function and prevents moisture penetration. It is important to, in order not to fill it with moisture passing materials, such as glass fiber.

If you decide to fill the void, Make sure, that the material is moisture resistant (e.g. closed cell foam).

4. Water vapor control.
Install an intelligent vapor barrier membrane from the inside of the house. This type of membranes regulate water vapor flow, preventing condensation in the walls.

Avoid using standard polyethylene as vapor barrier, Because it can stop moisture inside the wall.

5. Providing adequate ventilation.

Good ventilation of the interior of the house is crucial for maintaining a low level of humidity and prevention of mold development.

Consider installing mechanical ventilation system with heat recovery (recuperation), to improve air exchange without energy losses.

6. Building tightness.

Seal all gaps in the building's structure with mounting foams or special sealants. Tightness limits the penetration of moisture and cold air into the walls.

The selection of appropriate materials and techniques depends on the specifics of the building and local climatic conditions. It is worth consulting with an expert DS. thermal insulation or construction engineer before starting work.