Building a foundation of UWB ( insulated with Swedish stove ) - Technology and tips

Even a person who is not particularly versed in matters of construction and known the most common types of foundations, which are mounted under any buildings.But that is a "warmed Swedish stove", few know.With the features and specifics of the arrangement of the foundation we will understand in this article.

This technology has been developed, and relatively recently, in Germany, based on the experience of housing construction in the Nordic countries.This is one of the main reasons for our lack of awareness on this issue.

begin to describe all the advantages of this design does not make sense - all the "pros" Swedish stove will become clear when it is considered in detail the technology and the process of installation.

What is special about the technology?

• entire plate is covered with insulation (hence the commonly used abbreviation - UWB).This eliminates the effect of soil temperature changes in the structure of the base.As the freezing of the soil under the house itself insignificant, it shifts the risks are significantly reduced.
• depth of the foundation - minimum.
• All communication tracks are insulated inside the Swedish stove.
• Such bases are used usually in the construction of buildings of no more than 2 floors.

Given the characteristics of the climate of our country, for the private sector - a great option.Now, knowing all the nuances of construction, you can go to its description of the phase.Receive proper about this design, as shown (optional).

Procedure for construction

Trace area

Nothing special about it.The only thing to consider - the orientation of the plate, especially if it is not rectangular and complex geometry.On which side, in accordance with the layout of the house, it is more convenient to sum utilities?

Construction pit

• Soil is removed by about 45 cm. This is enough, regardless of its characteristics.The bottom of the prepared segments are well sealed.
• After that, the site loaded bulk material, forming a "cushion".In principle, this is done in the construction of any foundation in order to minimize the impact on soil when it its possible motions.But when installing UWB has its own nuances, which are defined by the presence of insulation, sheltering all the faces of the plate.

First, if possible, should be pre-fill the bottom of the clay (about 10 cm) and a ram.This will create an additional layer of basement waterproofing.

Secondly, all such "cushion" - a mixture of sand + gravel (or crushed stone fines).In this case, these materials are loaded separately in a certain order.First, solid fractions (gravel, crushed stone), which after sealing are covered with geotextile cloth.After that - a layer of sand, river but only (or a large granules career).Why so?If the sand is at the lower level, it is, by definition, will absorb moisture from the soil, which may gradually reach up to a heater.

Third, you must immediately mounted on the perimeter of the drainage system.There are recommendations that this is done only in cases where the underground water reservoirs lie deep.That's right.But is there a guarantee that after a while they will not change the configuration?The reasons for this are many - far away from the major construction site, the gradual climate change and other factors.And then what?After all, the house is being built for many years, and make design changes after a while - it is very troublesome and costly.So it is better to prepare for all the "surprises" in advance and lay drainage pipes immediately.

communications Laying

Everything is done on the project, and there are no difficulties here.

Note! necessary to consider the future.After all, in the planning of all consider impossible.It is understood that the project takes into account all major engineering systems.But if you then will have a desire (and the ability) to connect something else?For example, cable TV.Maybe you will need to build additional electric / cable, as the former will not be able to "hold" the load due to the purchase of new appliances.There are many options. So you do not puzzle over how to solve the problem, it is advisable to put a couple of spare tubes.Moreover so that it does not bend, because then broaching the same cable will be difficult.

Warming

Considering that the material is mounted and by UWB, it must possess high strength, especially for compression.Therefore, these common variants, as the foam or mineral wool disappear.As an example, products "Penoplex".You can select and other, but with similar characteristics.What are its advantages?It is multifunctional, as it simultaneously provides both heat and waterproofing.

At this stage going formwork, which is laid out inside the same "Penoplex".Once cured, the fence boards dismantled and insulation remains and serves at the same time skirting the bottom of the structure.

reinforcing frame

is worth recalling that it should be the bottom a few rise above the base.Therefore, a mesh underlay or plastic "cups" (commercially available), or wooden "chocks" so as to raise it to a height of at least 50 mm.

Note! Depending on the project and the structure of the destination can be put directly under the net pipe heating system, ie to arrange the contour of "warm floor".Sam "Penoplex" only reduce heat loss, but the floor is not heat up, even more so to the desired temperature.Naturally, this would require special calculations, but it is more than suitable for residential buildings."Thread" You can specify a limit of the distance between adjacent.At a minimum - 100 mm, the maximum - 250.

In the context of the whole structure looks like this (without taking into account the above nuances on arrangement of "cushion»)

Fill

solution to reduce the cost of the further finishing of the premises, it is necessary to align thethe surface of the plate to a future ideal state, since it is the floor of the ground floor.Given his prior (work already done) then we can restrict warming laying carpet, linoleum, parquet without lag devices and other additional activities that are carried out when installing the "finish" coating.

Summary

It is time to summarize and articulate than the preferred design warmed Swedish plates.

First, do not need a great experience, as well as rental (hiring) of special equipment - all done by hand.The only difficulty - in the calculations, and they need an absolutely accurate.This is where specialist services are needed, and everything else you can do on your own.

Second, the possibility of significant cost savings, particularly for cement.

Third, taking into account the availability of the circuit "warm floor" can be set very favorable microclimate (and around the house) without additional special equipment for different expenses.Plus - dramatically reduced costs under "heating".

cost Swedish foundation

exact figure for obvious reasons, do not even call a specialist.You can navigate to these (approximate) data - self-stacking plate 100 m² will cost in the range 325,000 rubles.