Wall insulation foam hands - detailed instructions

By Admin | Construction & Tips
11 April 2016

reading this article, you'll learn how easier and faster just to warm your house from the outside.It considered in detail all the stages of work on thermal insulation, as well as provides tips on choosing the right material.In particular, we will look at how to make foam insulation of walls with his own hands.He and inexpensive cost, and effect will be very significant.Tell us more about it this way.

How to make foam insulation of walls with their hands


  1. finished surface of the walls
  2. Fasten starter profile
  3. Glue heater
  4. Paving reinforcing layer
  5. Tips for thermal insulation of external walls of foam
  6. Video: Wall insulation foam

finished surface of the walls

insulation to get quality and last a long time, we must be well prepared to warm the surface.This process is quite long, and will have to exert a lot of force.But the result is worth the time and effort.

If you are warming new home, some things you do not need to perform.

# 1. first step would have to be rem

oved from the outer walls of anything that might hinder the work.This gutters, grids for ventilation, air conditioners, lamps, floodlights and wires.If the brick house is quite old, it is on its facade can be ornaments, cornices and window framing.They have to sacrifice, gently knocking.

# 2. In that case, if the wall is plaster, check its strength - prostuchim surface.All irregularities and deviations check with a plumb line, the rules or the cord of sufficient length.All errors shallow note not to miss a single blemish.As a rule, when checking it turns out that the walls are far from ideal.Not only are they not very smooth, but the plaster in some places rests on "parole".Do not handle the insulation, these defects were discovered.First, remove the pieces of plaster, and then do some work with a chisel, knocking concrete sagging and excess mortar between the bricks.

# 3.If facade was painted with oil paint, then she can not stand it.In this case it is necessary to peel the paint.Due to its reduced adhesive properties of the surface.Well, that must be removed without fail mold fungus, grease and rust, as well as hydrochloric plaque, probably everyone knows.

# 4. If the walls are large enough bumps and cracks (more than 2 millimeters), then they must be primed.For this purpose, Primers, deep penetration, wielding a special brush called CEILING.It will do the job faster and more accurately.When the primer dries well, it can be applied to cement plaster for outdoor work and putty the cracks.

# 5. In the case where the bumps are very large - more than 1.5 centimeters - and first gruntuem them.And then put the beacon on which we put a plaster structure.

# 6.The walls are covered with primer brick once, from cellular concrete 2 times.Cover can be a big brush or roller.

Sometimes part of the communication is left on the surface of the wall, closing their insulation.To avoid damaging them, scoring the dowels for fixing polystyrene, it is necessary to draw up a detailed plan of their location.

Fasten starter profile

After studying the project, we calculate the location of the lower limit of the walls that need to be insulated foam.Now we take the level of the hydraulic, measuring out the border on all internal and external corners of the house.We stretch the cord on these points.Here are some of this line we are to set the starting profile, which will be held on the lower row of plates of the heat insulating material.Otherwise, as long as the adhesive has dried, the plates can move.

size Homepage trims choose according to the width of our thermal insulator.Fasten her six-millimeter plug-nails, having them every 30 or 35 centimeters.Bursting element for precast dowels are nails, which should be worn washers.Joints home strips at the corners of the house, or making an oblique cut, or by using a corner connector.To fluctuations in temperature is not deformed structure, placed at the ends of the cap between the profiles plastic connectors.With Connections profiles overlap unacceptable.

Starting profile
to check the level of a safety net start fixing profile.

Glue heater

Knead glue to glue

not too thickened and dried up, it is necessary to use the whole hour and a half - two.So do the right amount of adhesive mixture on the spot.To do this, we take a large plastic bucket and pour water into it.Then slowly it sypem adhesive.Not to get lumps, to put on a drill mixer nozzle, turn it on small turnovers and stir until the mixture until there are no lumps.We wait 5 minutes for the swelling of the adhesive, and then for 2 minutes again include drill and mix.If after a while the glue is slightly thickened, it is necessary just to mix it again without adding water to it.

Apply adhesive to the slab foam

According to technology wall insulation foam from the outside, apply the adhesive to the heater can be in many ways.It all depends on how smooth the walls of our house.

Method 1 - applied when differences of the surface reach 1.5 centimeters.In this case, we put the adhesive mixture on all sides of the foam slab, retreating from the edge of 2 centimeters.Of the same thickness (2 cm) and should be an adhesive layer.To keep pace with the plate in the central part of the plate, in the place (area of ​​0.5 square meters) of 5 - 7 times uniformly placed adhesive beacons diameter of about 10 centimeters.

Adhesive application
example glue.

Method 2 - used when the irregularities of the walls are less than 1 centimeter.Along the perimeter of the plates, and in their central part plot the adhesive strip width of 3 to 4 centimeters.As a result, the adhesive composition should be coated from half to 60% of the surface.When the heater is pressed against the wall, the glue is distributed and takes all the space.

Important: To avoid air pockets never make solid adhesive strip.They should take the form of a dotted line.

Method 3 - used when the wall almost flat, and the error is not more than 5 millimeters.In this case, we arm a special notched trowel, causing them to glue on all base plates.The size of the tooth comb - centimeter per centimeter.

Terms installation of insulation on the walls

After the adhesive is applied, you can not hesitate.Within 20 minutes all necessary plates glued in place.First, putting a plate of expanded polystyrene, a little shifting them away from the place where they need to be glued.This distance should be 2 - 3 cm.Then with the help of building insulation regulations or trowel pressed against the adjacent plates.Clay, who will speak from the inside and foam at the corners, you must immediately remove.

Glue sheet
We put a sheet offset presses and to the next.

correct installation of each foam plate check using a spirit level.Also, we use the cords and the control rule, specifying any deviations from the plane.

Check level
Each sheet check the level.

boards should be laid firmly at a distance of no more than 2 millimeters apart.If you have gaps greater width they need to be repaired.To do this, take a foam construction, or long, narrow pieces of foam.Glue in the joint should not be, and the difference in thickness of the joints may be no more than 3 millimeters.

Important: if you move the plates until the glue is not frozen, they may stick bad.Therefore, when you need to fix some flaws, it is better to remove the plate.Removing it from the layer of adhesive mixture, fresh smear glue and put the sheet back into place.

When installing the heater working from the bottom up, starting from the ground profile.We pay special attention to the lowest number of boards, which will be decisive.The easiest way to do so: to put the first and last plates, and between them pull the cord, attach it to the top of the sheets.On this cord and set the rest of the foam plate.Next lay out a series of offset joints.It must be at least 20 centimeters.However, even better put rows of insulation in a staggered manner, making the shift in half board.

Offset sheets
joints must be covered with foam, their glue for this offset.

Laying slabs closely watch how their joints correspond with openings for windows and doors.It is impossible that they were on the same vertical line lights.Optimally, if the joint opening extends or under or above it.This technology facade insulation foam provides that the amount of displacement must be at least 20 centimeters.

Sometimes such an option: the walls are made of the same material, and then was attached part of a different material.For example, combine brick, OSB, or foam.The junction of two adjacent insulation boards must be placed at least 10 inches away from the boundaries of these materials.If the walls have protrusions or recesses, which must be insulated, these places do not overlap as a heat insulator is less than 10 centimeters.

the corners of the house, both inside and outside the plate joined teeth, t. E. With ligation.To vertically formed not long seam, causing cracks on the insulation required entry to the adjacent wall.In the corners of the plate and on the slopes of foam are placed with a margin, which should allow to make the dressing.Once the glue on the corner grab sticking surplus slabs must be cut.To cut the foam gently, take a thin saw blade teeth with frequent or large knife.Cutting should be a line or a square of metal.

Ligation sheets
In the corners of the plate should bandage oneself together.

When you install insulation slopes insulation sheets up against the window and door openings.For this you will need a polyurethane sealing tape or adjacent profile.If you use a tape, it is glued directly onto the door frame.When it adjoins the insulation, it is squeezed, becoming thinner by about a third.Insulated window located on the front, give birth to a heater on its frame 2 centimeters, no less.Pre okleivayut polyurethane tape all windows.

In the case of the wall of the expansion joint at the location of the insulation do slit size of 1 to 1.2 centimeters.In this slot firmly insert the wiring of polyethylene foam, squeezing it to third.

dowels fix insulation

When the glue is dry (usually takes 3 days), you can proceed to the final consolidation of the insulation.For this purpose, flexible plastic dowel with a big hat in the form of a perforated umbrella.They are fixed precast nail or screw-pin.Nails can be metal or plastic.To prevent cold bridges is best to choose an option with plastic nails.The length of the anchors determines the thickness of the insulator and the material from which made the wall.Plug must be in the concrete to 5 centimeters in a brick - 9 centimeters, and for cellular blocks - 12 centimeters.

Important: dowel having a rod made of metal, should not be used.It is fraught with the advent of cold bridges.

Dowel anchoring in all the corners of the plate and in the center.In 1 square meter is between 6 and 8 dowels.Next to the slopes of doors and windows in the corners and around the cap fasteners need more.From the edges of the plates they must retreat by 20 centimeters.What specific additional anchors to take, and at what distance from each other to strengthen them, it depends on several factors.This, in particular, the size of the insulator sheet, the size of the house, the wind force and the quality of the dowels.

Before using the fixture for him Do the holes using the punch.

Drilling depth must be 1 or 1.5 centimeters longer than the length of the dowel.

Clearing hole of dust, hammering nails spacers with a rubber hammer.If the nails are not used, and the pins, they are screwed screwdriver.Hats dowels should not hang around much over the plane heater.This distance can be less than a millimeter.

You may be useful following materials:

  • How to choose a punch - punch selection criteria for a home or a permanent job.
  • As drilling concrete, metal, tiles and wood.

Do not forget that it is necessary to observe the mounting perpendicular to the surface of the walls.From time to time we check how firmly hold dowels gently trying to pull them.

Paving reinforcing layer

Installation auxiliary reinforcing mesh

To avoid cracks in the corners of window and door openings, these places have to glue pieces of reinforcing mesh size of 20 by 30 centimeters.This reinforcing mesh is mounted in the same way as the base layer for reinforcement.

When the foam insulation of facades at the bottom, up to two meters, it is necessary to lay an additional layer of reinforcing mesh.It will protect the wall from damage.

Installing perforated corners

To enhance the corners of the house, as well as slopes and decorative elements used perforated corners.They are made of plastic or aluminum, and the edges are fastened in reinforcing mesh pieces.To fix the corners of their smear glue (including grid), and then press down with a spatula to a heater.Pre-clipped corners.Clay, who will speak through the mesh and perforations should be smooth.In the corners of the profiles are joined together end to end, cutting off the grid and shelves at an angle of 45 degrees.

Bonded area
The glued area.

Mounting the main reinforcing layer

When an additional layer is dry, and all the corners are secured, you can do fixing the basic layer of reinforcement.To do this, use the special mesh facade made of glass.It is resistant to alkalis and is not stretched.The band of a mesh width of 5 centimeters can withstand loads up to 1.25 kN.

to paste the grid and to protect the insulation, use a special solution.It has no such composition as adhesive mixture but prepares about the same.

Before spending reinforcement plate foam should be sanded.This will smooth out the bumps in the joints of insulation boards.Polishing foam float and large sandpaper.After that, well cleaned and causes the surface of the insulation layer of the solution was 2 millimeters.

reinforcing mesh is cut into pieces, the size of which corresponds to the height of the wall.The solution was applied to the surface layer of upright walls equal to the width of the grid.To do this, use a grater or poluterok metal.Excess glue is convenient to shoot with a notched trowel, to form a groove.Then applied to the mesh wall, pushing it to its solution and pressing down with a float or a flat trowel.

Glue on the net
After leveling the grid should not be visible on the surface.

smoothes mesh neatly from the middle to the edges.Excess adhesive is distributed to the plane of the wall.

Important: Do not pull the net much to the insulation is not pressed.Its location - in the middle between the wall and insulation.

Once the grid will be stuck, do not wait for drying the solution and causes another layer of it, but leave a free edge 10 cm. Its thickness is the same as the previous - 2 millimeters.On the free edge width of 10 centimeters impose the second lane of the grid.The upper layer of the solution is to completely cover the grid, it should not be out from under him to look out.After that, all of the above steps are repeated with a second strip of mesh.Strips should overlap by 10 centimeters.

forward to tomorrow, and the next morning it is already possible to close up filler irregularities.Do not worry, she has not dried up completely.But if irregularities are large enough, then have to wait for drying and then further apply a layer of glue.

Tips for thermal insulation of external walls of foam

# 1. Remember that the outside wall insulation foam must be carried out at zero temperature is not below 5 degrees or above 25 degrees.It was not clear moments?