Wall insulation foam with your hands: step by step guide

Foam - economical material for thermal insulation of the house

Description of the material: its advantages and disadvantages

Foam insulation has long been known. Due to the fact that it is made from expanded polystyrene, it contains billions of cells filled with air. They create a beautiful effect of heat due to the low thermal conductivity of air mixture. This insulation has long been used for thermal insulation huts and trailers, which are used as temporary housing in the northern regions. Of sandwich panels are building houses on the Canadian technology. The foam used as a heater in these constructions, allows for a wall thickness of not more than 15 - 20 cm, which does not reduce their ability to retain heat.

Insulation of the house facing facade panels based foam

And increased use of foam for covering ceilings, heat insulation of floors, and gestures in different homes. Especially popular wall insulation foam with his hands outside the building. This corresponds to a heater well to any type of wall. It is inexpensive and easy to mount, since it has the form of rectangular plates of various thickness from 5 to 15 cm. Thus it is possible to pick up plates of different densities.

Useful advice!When choosing a foam need to find a balance between density and thermal conductivity. The fact that the denser the foam, the higher its thermal conductivity, and thus to achieve a normal effect, it is necessary to thicken the foam layer.

EXAMPLE arrangement ventilated facade with foam

The structure of the soft material is that allows you to cut the plate in the usual sharp knife. This is another advantage of this insulation. However, he is not deprived and cons. The cellular foam structure has a very weak bond, and because small particles are separated just enough. For this simple reason, it is easy to crumble when insulation foam walls with his own hands. Video of this process are filled with moments when the plates are broken, even with slight pressure on them. Handle with foam to gently and very carefully.

A second disadvantage of this material is its poor sound insulation qualities. Therefore, if you decide to sheathe their walls to protect from noisy neighbors, then the effect will be minimal. Better to choose another material. The third disadvantage is in the fact that the foam loves nibbling mice and rats. They are able to destroy the plate for a few weeks or crap it moves. Therefore, if the situation in your area with rodents far from happy, you need to use a heater that mice do not like.

The system "wet facade" with foam

Wall insulation foam with your hands

Material is equally well suited to close the horizontal and vertical surfaces, such as withinAnd outdoors. Interior walls lately less and less insulated with this material, as replaced penoplex come to him, which is better suited for this purpose. However, if you decide to insulate the walls inside the apartment foam, it is necessary that the thickness of the sheet was 5 - 7 cm. This will significantly reduce the area of ​​the rooms. Much better to produce wall insulation foam with his hands outside.

For mounting the foam boards use a special adhesive blend

Pre-need to prepare the materials and tools needed in the process of its implementation:

• Styrofoam plates of sufficient thickness. It fits 10 cm for middle latitudes. If the plates are thinner, they should be 2 times more, as they will have to be laid in two layers. Thus it is necessary to glue the second layer only when after the first glue has dried completely. Calculations made for the needs of the area of ​​the walls, from which subtract the area of ​​all the openings;
• mineral wool slabs, which are necessary for blouses perimeter of windows and doors. They are assumed to be the same thickness as the foam. This measure is necessary to ensure that fire safety regulations have been complied with. mineral wool slabs density should always be the highest. Requirement calculation is based on the number of windows and doors. The tiles fill the wall surface around the openings of about 30 cm;

Mounting sheet foam readily accomplished independently

These are all tools and materials that are needed for the foam insulation of the walls with his own hands. Video trim openings mineral wool can be found online and see details.

Technology insulation foam on the outside walls

Time work on warming the walls of the foam with your hands should be calculated so as to have time to close plaster or other finishing coated foam sheets before it starts to turn yellow under the action sunlight. This process is very harmful to the material, since it seriously affects the structure and reduces thermal insulation properties. The work begins with the preparation of the walls. Since they remove the old paint and plaster. Shpaklyuyut cracks and ridges are cut. After that, the walls are well treated with primer. If necessary, make it 2 - 3 times.

Holes for communications in the foam can be easily cut with a sharp knife

Useful advice!To find out how well a layer of primer, you must run your hand along the dry wall. Nothing on it should not appear, no sand or other impurities.

Before the start warmingIt is necessary to fix the cap starting bar. It is set on the horizon building level. This rack has the form of shelves and secured with screws or dowels. I need it to foam to retain and not slid down. In some cases, you can avoid the use of this element, but only when the height of the building is not more than one floor, and the first foam layer is glued and has already dried.

The starting strip is set horizontally and should correspond to the thickness of the foam sheet

Further, wall insulation foam with his hands starts from the bottom. The first adhesive sheet is smeared at several points on the perimeter and then put on a starting edge strip and glued. The second and subsequent sheets are fitted to the first, being careful not to exceed 2 spacing - 3 mm.

Useful advice!The resulting foam gaps between the parts, can be filled with foam in a thin stream. This can be done only after the final drying of the adhesive sheet to prevent displacement of the expanding foam.

For a more dense foam mounting plate secured to the plastic molds, plugs with wide hats

It is necessary not to forget about mineral wool slabs are used in the foam insulation of the walls from the outside with his hands. Video is an opportunity to see how to make a fire trim around doorways correctly.

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Subsequent rows of foam boards should be done so that the masonry was like a brick. In the case where the second layer is required, that make it so that no gap is not coincided both layers. For denser mounting plate can be attached to the plastic molds - dowel with large heads. To do this, drill a 10 mm hole in the wall and slabs of 6 pcs. 1 m². They drive in the dowel and a hammer.

Before applying the plaster to the foam glued reinforcing mesh

To plastering can begin only after the final drying glue. To do this, on top of the foam plates glued reinforcing mesh. Then, only the applied layer of any plaster for painting or decorative plastering composition. Similarly looks and wall insulation foam technology outside under the ventilated facade. Only in this case used the guides, between which is bonded foam.

You need to see for yourself to finally understand the process of foam insulation walls on the outside with their hands. Videos of such work a lot in the network. Properly insulated facade foam, will not create any problems with freezing for many years.