Build Daily

Bearing Structures

August 12, 2017 18:08

Thermal insulation on the outside of the foundation - the secret of the comfort of your home

materials for thermal insulation of the foundation

principal properties of the material, which performs insulation foundation of the house is the low thermal conductivity and minimal water absorption.Moreover, the second indicator - the more important because the insulation is laid directly in the ground or on the surface.

most often to protect the basement of the house such materials are used:

  • foam;
  • polyurethane foam;
  • expanded clay;
  • slab of basalt fibers.

best materials, which do not need additional protection against moisture, are polystyrene and polyurethane foam.Foam for these works is more favorable, because the insulation of the foundation it is easier and cheaper.Also

minimum water absorption, the foam has a sufficiently high mechanical strength.Therefore, it is not afraid to soil pressure, which is held backfill the sinuses.Polystyrene - an excellent material for insulation of the outer part of the foundation.It is easily mounted on the concrete with glue or plastic dowels, umbrellas.Subsequent finishing of this material is also easy and convenient.

Inexpensive perform insulation of the foundation from the outside as possible and with the help of expanded clay.This material has high hardness, is resistant to temperature and easy to use.The only condition for the normal operation of expanded clay is a high-quality waterproofing.

clay gravel is porous, therefore absorbs moisture from the ground, losing their energy saving qualities.Therefore, it is laying the foundations in the bosom should be done previously prosteliv waterproofing layer of synthetic foil or roofing material.

Basalt fiber plates are commonly used for thermal insulation of the aerial part of raft foundation.Their installation is similar to the installation of the foam.

How to perform insulation of the basement from the outside?

Protection foundation of heat requires high-quality insulation and open its recessed parts.This work is best done at the stage of construction of the plinth of the building, since then access to its recessed portion is closed blind area.Sheets of foam can be glued directly onto bitumen mastic, which is coated with a wall socket.

dowels for additional fixing sheets should only be used on the outside of the cap, as below ground firmly squeeze the insulation to the foundation.

conducting wall insulation foundation of expanded clay, it is necessary to fill up around the outer contour of the building into the open sinuses.The thickness of the insulation layer of expanded clay should be between 40 to 50 cm over the entire depth of the underground part of the raft foundation until his soles.Before backfilling the trench expanded clay is necessary to lay two layers of a solid film, leaving a margin of cloth to wrap insulation on top.

design foundation insulation inside

insulation outer part of the foundation significantly reduces the loss of heat through its walls.However, we still have a vast area under the building, which is also necessary to protect against the loss of precious energy.In fact, the insulation of the foundation from the inside - is laying insulation material on the ground.There can be two options.

If the floor is wooden, on the posts and joists, it is necessary to pave the underground space waterproofing roll and fill it expanded clay to a height of 20-30 cm.

If the basement space is covered with concrete slabs, use foam.For this purpose, this sheet material is adhered directly to the bituminous waterproofing to the underside of the panels.If the building is operated by basement, it is best to use a durable extruded foam, placing it under a concrete screed.