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August 12, 2017 18:08

Cheap insulation of expanded clay for the thrifty housewives

Insulation of expanded clay, whether it is profitable?

Currently there is a huge amount of heat-insulating materials, among which not the last place is occupied by mineral or basalt wool, and various foam fillers, such as polyurethane foam.However, many of the modern heaters have significant drawbacks: some emit harmful substances when heated, while others do not make friends with the fire blazing, and no worse than wooden structures, which are used for thermal insulation.

So zealous owners, intending to build a new house or to warm the old, always a long and carefully choose the most suitable thermal insulation, and the main criteria in choosing them are reliability and low cost.Perhaps it is these requirements in the best thermal insulation of expanded clay, natural environmentally friendly material, which is not in the fire does not burn, nor in the water does not sink.

final expanded clay bound to its porous structure, ie, a large number of closed voids in each fraction of the material, the dimensions of which are divided into three groups, from 0.5 to 1, from 1 to 2 and from 2 to 4 centimeters.To produce large volumes of rocks by firing clay, expanded clay is an extremely cheap material for the thermal insulation properties and a 10-cm layer thickness is comparable to the meter masonry brick or 25 inches of solid wood.

Where can I use as a concrete block heater?

In any building as an apartment, and in the private low-rise cold will certainly find for himself a bridge to penetration, if the insulation has not been given due attention.Properly used as a concrete block heater will not leave any chances to the cold.This material can be used for thermal insulation of the ground floor and basement of the soil, overlap between the basement and the first floor and the other floor decks, as well as for thermal insulation of walls and roofs.In other words, you can create a whole-house insulation on the basis of expanded crushed stone, gravel or sand.

Keramzit as the insulation is only effective when the thickness of the layer of at least 10-15 centimeters.

calculation of insulation thickness is usually made according to SNIP II-3-79 (as can be understood from its numbering, standards were developed in 1979, but in 1995 they were supplemented).It was there are the calculations required thermal resistance coefficient for a particular type of building.

But, in general, the heat transfer resistance at the room ceiling, contacting the non-heated must be at least 4.16 m2 * ° C / W, which corresponds to 2 meters keramsit (its thermal conductivity - 0.47 W / m * ° C).But the expanded clay, heat conductivity is 0.075 W / m * ° C, it will take nothing at all, stop the layer thickness of 12.5 centimeters for the basement ceiling.

How can I fill expanded clay floor?

most simple application of loose expanded clay - they insulation of horizontal surfaces, ie floors between the floors and, as an option, a flat roof.If you have wooden floors, organize high-quality thermal insulation is not difficult, generous enough to pour concrete block between joists.

best for filling the space inside covering material is used in two different fractions , gravel fill first value from 1 to 2 centimeters, and then fill the interstices between large particles expanded clay sand.Bulk insulation is necessary from time to time to stamp a little, because otherwise it will shrink over time, which will greatly reduce the thickness of the insulation layer.

Warming concrete floor done beacons, one of which is located at a great distance from the wall, and the other a short distance away from her with a certain step.The intervals between beacons backfilled expanded clay coarse fraction, which is then complemented by a fine sand.After aligning the insulation on beacons, fill it with cement milk, which is a much watered-down cement powder.

This is done in order to interconnect the individual fractions and prevent them from arbitrarily displaced relative to each other, breaking the leveled surface.Top reinforcement made of metal grid, over which is poured a concrete screed.Insulation is fully ready for operation immediately after the concrete pour.