Insulation of the ceiling in a private house

Many of us are asking about the feasibility of this event. The thing is that a huge part of the heat in winter goes outside not through walls or windows, but through the ceiling. Installation of new double-glazed windows and wall insulation does not help completely. Warm air, following the laws of physics, tends upward and leaves through the overlap. So it turns out that almost half of all heat is wasted, heating the atmosphere. You just need to choose the method by which you can solve this problem, and all the funds spent will quickly pay off.

What are the ways to heat the ceiling?

There are two main options - insulation from the inside and outside. Let's consider each of them:

Insulation of the ceiling from the inside:

1. It is necessary to build a frame from wood or metal, which is attached to a shelf.
2. All the space between the profiles or bars is filled with a different kind of insulation. Very good and easy in this case, it is obtained by the insulation of the ceiling with mineral wool.
3. Between the ceiling and insulation can be applied a layer of vapor barrier.
4. The ceiling is covered with plasterboard.

The first option has several drawbacks. If an expensive repair has already been done, then there is little desire to destroy the ceiling. It will take a lot of money and time to create a new one. In a private house you can insulate an attic. In this case, you do not need to create a false ceiling and everything is done very simply and cheaply.

Insulation of the ceiling from the outside

1. Insulation of the ceiling with foam:

• the insulation of the concrete ceiling needs to start with clearing the whole space of garbage and unnecessary things - only this will allow you to get down to work;
• at the next stage of insulation of the concrete ceiling, you need to accurately measure its area in order to calculate the amount of material;
• cover the entire space with foam plastic, using sheets with a thickness of at least 40 mm;
• The connection points can be poured with mounting foam;
• if the attic you will use as an attic or a warehouse, it is worth making a screed , so as not to break the foam, the mortar layer should be at least 50 mm.

Instead of polystyrene, the ceiling can be insulated with expanded polystyrene, but in this case the costs will be almost double.

• all, as in the first case, you need to start with cleaning the room;
• we carry out all necessary measurements;
• mount the frame of our future floor;
• from below we lay the vapor barrier layer;
• Mineral cotton wool can not be strongly compressed, but we settle it tightly, trying not to form gaps;
• We construct a flooring, depending on how you will use the attic in the future.

You can lay mineral wool in two layers, overlapping the top layer joints that formed on the lower layer.

• on top of the layer of vapor barrier, and the boards are treated with antifungal agents;
• Filings should be taken last year, do not smell rot and without mold;
• mix the solution in the proportion of 1.5 part water to 10 parts dry sawdust, adding cement at the rate of 10% of the mixture;
• First, mix cement with sawdust, and then add water. The solution should be wet, and all sawdust covered with cement;
• All the space between the beams is covered with this mixture, its thickness should be 20 cm.

Such a composition dries a long time, and all work should be done only in the summer. Smaller sawdust requires more water.

Plates are made, which are obtained after the drying of the solution, filled in molds. This mixture consists of 1 part of sawdust, 0.3 part of cement, 4 parts of clay and 2 parts of water. Forms can be made by calculating the distance between chimneys and wooden beams. Dry plates are laid, and the gaps are filled with the same solution as when they are made.

In addition to the above materials, clay, sand, slag and other materials are also used for insulation. It should be taken into account that a layer of cotton wool 10 mm thick is comparable in thermal conductivity with a 7 cm claydite layer or 25 cm slag. This proves how much more appropriate to apply for the insulation of the ceiling in a private house with modern materials, which are much lighter in weight and easier to work with.