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October 10, 2016 23:05

Thermal insulation of expanded polystyrene foundation

home Thermal insulation is necessary to start with the foundation, and the best material for this purpose is polystyrene.Insulation of basement with polystyrene foam - 100% certified version + video will master the technology.Although this method is not the cheapest, but very effective, besides quite a simple process.

Thermal insulation of expanded polystyrene foundation

Warming foundation polystyrene

Features insulation

Article Contents

  • 1 Features insulation
  • 2 preparatory stage
    • 2.1 calculator for calculating the thickness of the insulation of the foundation
  • 3 technology foundation insulation
    • 3.1 Step 1. Waterproofing surface
    • 3.2 Step 2. Mount styrofoam
    • 3.3 Step 3. Plastering foundation
    • 3.4 Step 4. Backfill the foundation
    • 3.5 Step5. Making the blind area
    • 3.6 Step 6. Finishing cap
    • 3.7 video - Thermal insulation foundation polystyrene is 100% tested version + video
polystyrene sheet

polystyrene sheet

polystyrene sheet has a large number ofpositive properties:

  • it is light;
  • moisture resistant;
  • is environmentally safe;
  • it does not infest insects;
  • not moldy and rot;
  • has a high compressive strength;
  • absorbs sound;
  • does not miss the heat.

    polystyrene sheet

    polystyrene sheet

In addition, this material is easy to install and is about 40 years, if the insulation is made by all the rules.Have polystyrene and disadvantages:

  • material fire hazard;
  • sensitive to mechanical damage;
  • destroyed by UV.

    polystyrene sheet

    polystyrene sheet

for fixing foamed polystyrene sheets can not use glue on the organic solvent and hot mastic.To protect the insulation from damage to transport and unload it must be careful not to throw from a height, and after the installation is required to close the outer trim - tiles, siding, stucco or even cement mortar.

Specifications sheet polystyrene index
Operating temperature range sheets without experiencing mechanical loads (C °) -18 to +60
Density (kg / m3) 1040 - 1060
Hardness (MPa) 120 - 150
softening temperature (Vicat) in air (C °) 85
softening temperature (Vicat) ina liquid medium (C °) 70
Tensile strength, MPa (kgf / cm2), no less than for the sheet nominal thickness to 3.75 mm inclusive 17,7 (180)
strengthbreak, MPa (kgf / cm2), no less than for the sheet nominal thickness greater than 3.75 mm 16,7 (170)

preparatory stage

Expanded polystyrene PSB-S

polystyrene PSB-S

to startshould calculate how many panels you will need a heater for the foundation.Dimensions of standard polystyrene plates - 600h1200 mm, thickness from 20 to 100 mm.For residential building foundation slab typically use 50 mm, putting them in two layers.To know how plates required, the overall length is multiplied by the foundation and its height divided by 0.72 - Area of ​​one sheet of expanded polystyrene.

For example, if the foundation is insulated with 2 m in height in the house 10x8 m, the area of ​​thermal insulation equal to 72 squares.Dividing it by 0.72, we get the number of pages - 100 pieces.Since the insulation will be executed in two layers, it is necessary to buy 200 tiles 50 mm thick.

It is, however, very average calculation based on the fact that the thickness of the insulation will be exactly 100 mm.However, this value may be more - all depends on the climatic conditions of the region, and from the base material, and the type of insulation.

There is a special system for calculating the thickness of the system for which you want to know the index of R - is a constant desired thermal resistance, snip set for each region.It can be specified in the local department of architecture or take from the proposed table:

City (region) R - required thermal resistance m2 × ° K / W
Moscow 3.28
Krasnodar 2.44
Sochi 1.79
Rostov-on-Don 2.75
St. Petersburg 3.23
Krasnoyarsk 4.84
Voronezh 3.12
Yakutsk 5.28
Irkutsk 4.05
Volgograd 2.91
Astrakhan 2.76
Yekaterinburg 3.65
Nizhny Novgorod 3.36
Vladivostok 3.25
Magadan 4.33
Chelyabinsk 3.64
Tver 3.31
Novosibirsk 3.93
Samara 3.33
Perm 3.64
Ufa 3.48
Kazan 3.45
Omsk 3.82

Calculator insulation thickness foundation

order not to burden the readerthe calculation formulas below posted a special calculator that allows you to quickly and accurately find the required thickness of the insulation.The result is rounded up, resulting in a standard thickness of panels selected heater:

Calculation of the minimum insulation thickness of external walls of the basement
Enter consistently requested information and click "Calculate"
Enter the table valuethe value of thermal resistance for your region (decimal - through point)
Specify the foundation material
reinforced concrete blocks rubble concrete masonry (red burnt brick)
Select the type of insulation
polystyrene, extrudedfoam polyurethane foam sprayed polyurethane panels
Specify the thickness of the tape foundation
200 mm 250 mm 300 mm 350 mm 400 mm 450 mm 500 mm

addition Styrofoam will need:

  • mastic or roofing felt;

    ruberoid

    Ruberoid

  • gravel;
  • glue;

    Glue for styrofoam

    Glue for styrofoam

  • plugs-fungi;

    Plug - fungus

    Plug-fungus

  • putty or foam;
  • level;
  • trowel;
  • mortar;
  • sand;
  • reinforcing mesh;

    reinforcing mesh

    Reinforcing mesh

  • roller.

When all materials are procured on the perimeter of the foundation dig a trench.Dig need to freezing level, that is at a depth of 1.5-2 m. To the trench was convenient to work, it must be equal to the width of 0.8-1 m. Of course, the excavation is done by hand because machines can damage the foundation.The walls of the base must be thoroughly cleaned from the ground, bumps and cracks close up with a solution.

insulation technology foundation

Winterizing Your home

Warming houses

warming process consists of the following stages: surface waterproofing, fixing polystyrene, exterior finishing foundation.After the seizure of land is necessary to wait until the base is well dries, and only then proceed to the walls of isolation.

Step 1. Waterproofing surface

Waterproofing basement liquid rubber

basement waterproofing liquid rubber

On smooth, dry wall surface waterproofing the foundation is applied a layer of 4mm.Mastic without use of organic solvents, the best polymer-based or aqueous.The mixture is applied by roller, well trying to fill the pores and small cracks in the concrete.Can be used for waterproofing only or roofing material to combine both: top of putty lay roofing felt and glue the joints of the same mixture.

Waterproofing of the basement

basement waterproofing

lining hydraulic seals

lining hydraulic seals

Waterproofing surfaces

Waterproofing surfaces Waterproofing layer should completely cover the entire surface of the base and the base and not have gaps.

Step 2. Mount styrofoam

When dry paste, you can proceed to the main stage.Take the first insulation sheet and the back of the adhesive is applied to either longitudinal stripes or dot, the main thing that was the glue in the middle and on the edges of the sheet.After 1-2 minutes after application of the sheet is applied to the foundation, check its position on the level and strongly pressed.For slab foundation only fastened with glue, so as not to compromise the integrity of the foundations and basement to further strengthen plates plugs-fungi.

Apply the adhesive on expanded polystyrene

Apply the adhesive on the polystyrene

Spot glue application

Spot glue application

Mounting dowel - fungus

Mounting dowel-fungus

Mounting dowel - fungus

Mounting dowel-fungus

Fixing polystyrene dowels

Fixing polystyrene dowels

next sheet must be fixed on the side close to the first, so that the joints are the most dense.Be sure to monitor the level of the location of each piece - it will eliminate the formation of distortions.Stacking is performed from below upwards, wherein the vertical joints is recommended to displace the half-leaf side.When the first layer is completely fixed, proceed to the second.Everything is repeated in the same way, only the top layer of the joints should not coincide with the joints of the lower - plate necessarily laid offset.Finally, carefully inspect the insulation layer and in identifying gaps in the seams of their blown foam.

When cap insulation sheets are placed directly on the glue and dowels used after 2-3 days, when the glue has dried.Each plate is fixed in the corners and in the center;to save the fasteners can be placed on the joints.

Insulation of basement

Warming foundation

Insulation of basement

Warming foundation

Insulation of basement

Warming foundation

Step 3. Plastering foundation

to protect the polystyrene plates needed another layer, such as plaster.Ground part of the siding can be closed or revet granite.First, over the plates fixed fiberglass mesh, using dowels with big hats.At the interface need to stack the reinforcing material overlap by 10 cm. The net recommended stretch well, so that no folds, which lead to cracking of the plaster layer.

Fixing grid

grid Fixing

Plastering on the reinforcing grid

Plastering on the reinforcing grid

Plastering on the reinforcing grid

Plastering on the reinforcing grid

surface smoothing is performed with cement-sand mortar or acrylic adhesive.The first method is much cheaper, and therefore is used often.The solution is made thick enough and applied its wide spatula, firmly pushing the mixture into the grid cells.Plaster layer must be of uniform thickness over the entire area.Foundation plastered to the level of backfill soil, and trim the cap is performed later.

consumption of plaster

consumption plaster

Step 4. Backfill the foundation

Cover the trench can not until the plaster dries.First, at the bottom fill a 10-cm layer of sand, leveled and ram, then arrange the gravel cushion thickness of 20 cm is possible to replace the expanded clay gravel mixed with sand -. It will increase the insulating properties of the base.Next, the trench is filled with the soil must seal every 25-30 cm. When the to the top of the trench will be 40 cm, should be done blind area around the perimeter of the foundation.

Filling foundation

Filling foundation

Step 5. Making the blind area

Making the slope layout

Make markup slope

top of the soil poured a layer of gravel about 10 cm in the width of the trench, tightly ram.

compacted gravel

compacted gravel

Puts styrofoam , reinforcing mesh , set the formwork and compensating stitches

Puts styrofoam, reinforcing mesh, set the formwork and compensating seams

Fill blind area of concrete

Fill blind area of ​​concrete

gravel spread a roofing material;at the junction of the material put on the overlap of 12-15 cm, and coat with bitumen.The next layer - Styrofoam: plates stacked tightly in a row along the perimeter of the house.Then the plates are mounted around the casing of the boards in height about 10 cm. For the strength of the formwork is placed a metal grille with fine mesh.Prepare a thick cement mortar and fill it up to the wall formed a small slope.Incline promotes outflow of melt and rain water.

If desired, the blind area can be decorated paving slabs

If desired, you can decorate the blind area of ​​paving tiles

Step 6. Finishing cap

Once the blind area is dry, you can begin to trim the outer part of the basement.Since this portion rises above the ground and is clearly visible and finishing must be very neat and attractive.The easiest way - is to plaster surface and cover with facade paint.Before applying plaster on polystyrene plates secured reinforcing mesh.You can make the surface of the three-dimensional texture, if desired, or vice versa, to make a perfectly smooth wall.

Finishing stone plinth

Finishing stone plinth

Finishing plinth panels

Finishing plinth panels

Most often perform finishing cap decorative stone or tiles.To this end, the plastered surface ground, dried, and then attach the adhesive finishing material.

very important to seal the joints between the fragments to penetrate through them to moisture insulation.

This insulation of the foundation is completed.If all conditions are met, to change the heater will not have very long.

Video - Thermal insulation foundation polystyrene is 100% tested version + video