Thermal insulation on the inside of the foundation

Insulation of the foundation from the inside is used in cases where the insulation on the outside of the foundation inefficiently or for any reason it is impossible.It should be borne in mind that the internal insulation can increase the temperature inside the basement or ground floor, warm floors in the house, but does not protect the very foundation from damage caused by freezing it.

Ways foundation insulation inside a few, and they are often combined with the interior decoration of the basement.In any case, prior to installation of thermal insulation should be to take care of an efficient and high-quality waterproofing the foundation, and it is better to give preference to the methods of the seal section that make the entire thickness of the concrete resistant to getting wet, for example, penetrating waterproofing of the foundation.A dry basement is less susceptible to freezing, and hence damage.

Types of internal insulation of the foundation

In general, the methods of thermal insulation of the foundation from the inside like the outside insulation of the foundation.The most often used the following methods:

• expanded clay backfill basement room.It reduces cooling of the floor of the first floor.It is not enough effective way for country houses temporary residence;
• Wall insulation plates basement - foam, polystyrene or Penoplex, with subsequent finishing.A very popular method of insulation is most often used in conjunction with the outer insulation of the foundation for buildings with basements used.
• Insulation of the foundation from the inside with polyurethane foam.A very effective way of additional or separate insulation of the foundation, which allows to create a seamless coating with excellent adhesion, but the execution of this work requires the involvement of professionals from a special installation.

The choice of foundation insulation inside

When choosing a method, you need to focus on several factors:

• design of the building, the size of the cellar or basement;
• presence of external insulation and temperature on the outside of the foundation;
• soil type and location of the groundwater;
• Required temperature regime in the basement after warming, the availability of heating and ventilation;
• need for further decorative finishing.

cheapest method of internal insulation of the foundation - filling the space under the floor of expanded clay.This material removes water and creates an air cushion that protects the floor first floor of cooling.It covers all possible space under the floor shuttering and mounted on the inside at a distance from the foundation walls.

If the basement is used for the placement of residential premises, and its walls need not only warming, but in the finish, it is advisable to use polystyrene or penopleksovye plate, allowing to create an even coating, ready for veneering.The most high-quality and durable in this case will be the foundation insulation from the outside and inside - eliminating the temperature difference can be avoided the formation of condensation on the inner walls of the basement.If the insulation from the outside is not possible, you must perform a penetrating basement waterproofing: Concrete treated in this way is not subject to freezing, but retains vapor permeability, reducing the humidity under the insulation plates.It is also necessary arrangement of ventilation and air extraction, as these materials do not absorb moisture.

If resources permit, you can select the insulation polyurethane foam - this method is effective and suitable for every basement.

technology foundation expanded clay backfill

This technique is usually used in wooden houses, cottages and cabins.Materials for thermal insulation performance of the filling inexpensive, and the implementation of its does not require any special skills.

technology perform the filling of heat insulation:

1. Prepare formwork made of boards or plywood boards, placing them at a distance of not less than 0.3 meters from the interior walls around the perimeter of the foundation.The height of the formwork - up to the floor level of the first floor.
2. boards used to carry the formwork, the treated wood preservative operated in contact with the ground.Strengthen formwork slopes.At the bottom of the formwork is laid PE film - it serves as a waterproof protection against moisture absorption expanded clay from the ground.
3. backfill produce dry expanded clay - pebbles of volcanic origin.A layer of expanded clay should be equal to the height of the formwork.In some cases, at a low altitude of the basement can be expanded clay fill all the space under the floor of the first floor, while the waterproofing is placed on the entire area of ​​the filling.
4. can further insulate the floor, placing between the lags parogidroizolyatsionnoy layer membrane and mats made of mineral wool.

technology foundation insulation boards of polystyrene

Polystyrene - this is the second title of the usual foam modified to impart special properties.On the market are polystyrene plates of different brands, they are different density, resistance to mechanical damage, thick.For foundation insulation inside enough polystyrene slabs 50-100 mm thick.

technology foundation insulation inside polystyrene:

1. Prepare wall insulation to: align, eliminate big swings on the walls.The seams and cracks, if necessary, to embroider a solid foundation, and waterproofs and then sealed with a special compound.
2. Perform waterproofing of the foundation.For buildings constructed in the humid and heaving soils, as well as for buildings without external thermal insulation, it is recommended to use the penetrating waterproofing.
3. polystyrene plates to glue special glue, which is sold as a dry mixture or solution.Glue is applied to the plate dot, not less than 8.6 points on the sheet, and pressed firmly to the substrate.
   

   process of applying to the plate a special adhesive

4. sheets have grooves for ease of installation, during installation it is necessary to combine them.If the insulation is laid in several rows, you should place them in a checkerboard pattern.
5. After drying, the adhesive must also consolidate lists special polystyrene dowels with a big round head.The polystyrene plates drilled hole so deep that it has passed through the insulation boards and was at the foundation of 50-60 mm.The holes clog the plastic anchor, and then finish off in a special nail plug.Hats plugs should be flush with the insulation plates.
   

   The polystyrene tiles clog special dyupel with hat

6. the significant disadvantages of polystyrene its instability refers to damage by rodents, so by placing it is necessary to protect the reinforcing wire mesh.The mesh is placed on the adhesive layer based on cement, plaster after which her.As the plaster dried, you can perform any topcoat.

polyurethane foam insulation of the basement and basement

modern highly efficient caused by pressurized spray foamy liquid.The result is a foam layer with closed structure resistant to wetting without seams and joints.Application of polyurethane foam does not require any special training walls and can be done as quickly as possible.The only major drawback of this method is its high cost and the need to call professionals, which, however, pays off in the course of operation of the building due to the excellent thermal and waterproofing properties of the polyurethane foam coating.On it can be applied to any finishing materials, and use it for internal and external insulation is not only the foundation, but also any other home designs.