Insulation of the foundation polystyrene foam, polyurethane foam and foam - protection of structures
- 05 Jul 21:15
Foundation, as well as the walls, floor and roof of the house, exposed to freezing, because the concrete, from which it is erected, it is very easy to conduct cold.In good old tradition of many homeowners prefer to spend the foam insulation of the foundation, but this is acceptable only if there is no threat of flooding totally foundation of the house or the owner of the cottage is limited in finances, because the foam can perhaps be considered the most accessible insulating material.Among the huge variety of synthetic materials for the insulation is still considered the best insulation made of extruded polystyrene, which has no analogues anywhere in the world.Despite the higher price (when compared to a conventional foam) insulation extruded polystyrene is more practical and reliable.
Insulation of the foundation - to be or not to be?↑
Very often in the spring, many owners of country houses show cracks on the foundation, which appear as a result of misalignment or structural deformation caused by frost heave.To eliminate these defects, of course, possible, but the cost of such works is quite high.The cause of the imbalance and structural deformations of the foundation, in fact, is simple.As a consequence of the winter cold soil, saturated with moisture, it is exposed to frost heave.
water, freezing, increases its volume and results in swelling of soil under the building foundation, which in turn leads to the fact that the concrete slab as it were begin to be pushed out of the soil.As a result of these changes, and there are cracks and distortions.In addition to the swelling deformation of the foundation and may cause the spring thaw.During this process, the soil becomes softer and more pliable, which causes subsidence of the foundation.
avoid these troubles can be partially, if you set the foundation on a sand cushion thickness of about 10 cm and used for dusting nepuchinisty reverse primer, for example, the same sand.The cost of such work is relatively low, but, as noted above, these measures are only partially solved the problem.And in order to completely eliminate the possibility of cracking and deformation of the foundation you need to take care of any insulation of the foundation insulating material, such as polystyrene foam, or foam.
basement insulation using styrofoam ↑
themselves lagging foundation is very simple and will be able to cope with them, even the most distant from the construction people.
So, on the perimeter of the house removed a layer of soil thickness of approximately 0.5 meters and a width of about 1.5 meters.The resulting trench sand scattered by 20 centimeters and carefully tamped it down or improvised means.After that is laid on a sandy base plate of expanded polystyrene in the entire width of the trench.To be safe, they are glued using bituminous mastics, petroleum bitumen or other adhesives.
joints between sheets to fill with foam or cold asphalt mastic, in the event of penetration of moisture to the foundation, it does not enter.When all the work is finished installing insulation polystyrene plates can be filled with sand.A layer of sand must be at least 30 cm. The price issue is relatively low, because you can dig a trench itself, and insulating materials themselves are not so much.
Important: heat loss in the corner areas is much higher, so a layer of polystyrene foam in the corners of the house to be 1.5times greater than along the flat surfaces.
Warming foundation polystyrene foam around the perimeter of the building not only prevents freezing of the soil and prevents deformations and cracks in the foundation of the house, but also contributes to the thermal insulation of the basement, if any.
This technology insulation can also be used for thermal insulation of basements, because if you have a desire to convert the cold basement, for example, in a warm gym, not necessarily remove all the soil layer adjacent to the base and hang it insulation full height, it will be enoughonly perform polystyrene insulation as described above.
Warming foundation ↑
polyurethane foam polyurethane foam - a modern thermal insulation material, which is ideal for insulation of foundations, cellars and ground floors.He has a number of advantages:
- durable and safe;
- has a low coefficient of thermal conductivity;
- has excellent waterproofing properties;
- environmentally friendly;
- in spraying leaves cracks and joints;
- quickly applied to walls and foundations;
- does not require any special hardware.
spraying polyurethane foam technology completely eliminates the possibility of marriage for installation and allows for perfectly even coverage without gaps.joints and irregularities.When spraying polyurethane foam as it merges with the surface of the foundation, filling all voids.
Thus, a strong, solid, airtight stove, but due to lack of air gap, closed-cell foam structure and its low permeability, the formation of condensation inside the insulation is reduced to zero.
course, insulation of the foundation with polyurethane foam - one of the most effective methods of insulation, but at the cost of it is superior and polystyreneand foam.
We also offer you the video of the insulation of the foundation in this way:
method foundation insulation foam ↑
foam - the cheapest thermal insulation material.It has a porous structure, low thermal conductivity and vapor permeability and low density.Apply foam needed only if your house is on a hill and the threat of flooding of the basement does not threaten you.
Just as in the case of the starting polystyrene foam insulation of the foundation followed with trenches which to dig around the perimeter to a depth of about 50-60 cm. Thereafter, the foam sheets are glued using a waterproof bituminous mastic and then sprinkled sand.
foams can be warmed not only the foundation but also the basement, floors and walls of the house.
Important: carry out the installation of any insulation need 6-7 days after the end of the waterproofing of the foundation.If you start sooner insulation, solvents contained in waterproofing compounds can damage the structure of expanded polystyrene or foam.
insulation foundation - an important step on the way to his own comfort and comfort, so do not neglect them, and you need to treat the process seriously.