Correct pie blind area insulated with extruded polystyrene: incremental algorithm

In the area of ​​private housing stable growth in popularity of energy efficient housing, in operation less costly heating and air conditioning

The material is part of a training course on the Swedish warmed plate. To pass the entire course can be Academy FORUMHOUSE

These homes are well-balanced, high-tech system, one of the components of which are the minimum heat loss. According to the results of thermal imaging surveys proved that a significant outflow of heat occurs in the basement area. Consequently, one of the most important stages of construction is to prevent heat loss through the node due to complex using specialized insulation material - of extruded polystyrene or as it is called in abbreviated form, XPS.

In this part FORUMHOUSE Academy course with the help of a specialist corporate TECHNONICOL, look at how to reduce heat loss through the bottom foundation and further protect it from waterlogging and freezing optimal way - by means of the device insulated blind area. Consider the article:

• What is the blind area
• Why do I need to insulate the blind area
• Apparatus insulated otmostki - incremental algorithm

What is the blind area

Otmostka - protective and decorative structural element, running in the strip-impermeable coating around the perimeter of the building adjacent to the foundation. While some developers do not attach importance to this element, considering it unimportant constructive, like misleading fraught with serious problems in the foreseeable future. The main purpose of the protective strips - drainage of rainwater and meltwater from the building. Even with a gutter system, not to mention the lack thereof, without blind area rainfall goes directly to the foundation, so that the base and the cap are constantly in a wet environment. That, in turn, leads to soggy carrier elements and, then deformation, and degradation. In the presence of the blind area, especially insulation, it is excluded.

Refusal of the blind area, in an attempt to save money, in the framework of general construction budget - undue risk for the house, taking into account our climate. Leaving the foundation without protection, it is not surprising appearance of dampness and mold on the walls, or cracks. In addition, the presence of the blind area of ​​the house looks presentable - finishing coat, you can pick up virtually whatever. This could be backfilling with gravel or gravel, concrete, pavement, and more. Yes, even the lawn, if you want greenery, as opposed to the usual paving. Blind area, is a versatile, multi-functional design:

• Protective barrier for the foundation;
• insulation base;
• protection of the facade of the rain splashing in the base part;
• pedestrian zone in all weathers;
• element of architecture or landscape design.

Why do I need to insulate the blind area

To prevent not only otsyrevanie non-insulated and damp-proof foundation, but also freezing and frost heave, which causes deformation and cracking, it is necessary to insulate the blind area. For this purpose, use specialized heat-insulating polymer material - XPSCharacterized by excellent thermal insulation properties, high compressive strength, biostability and minimum water absorption. Unlike most thermal insulation materials, it is designed for use in harsh environments. No direct contact with the soil and moisture or high loads, do not involve reduction Performance material. For at least half a century, the insulation will perform its functions properly.

Kirill Paramonov

Head of Technical Services "Thermal insulation materials XPS» Corporation TekhnoNIKOL

Otmostka insulated with XPS, protects the foundation from external influences, and reduces heat loss prevents frost heave, thereby maintaining the integrity of the structure. In the case of UWB foundation (Swedish insulated plate) for a device for the blind area average Russian bands often sufficient thicknessXPS of 50 mm.

One may refer to the experience of other countries, but before you draw a parallel, it is worth remembering that the same American architecture does without blind area because of the mild climate. In most states winter temperature seldom falls below zero. We have the same every season a large number of cycles of freezing and thawing (crossing over the 0 degrees), which provokes the destruction of humid designs. Plus, even in the Krasnodar region of freezing ground level of an average of 800 mm, which is the warmest region. If we turn to the experience of the Swedes, whose foundation ideology so well blended into the domestic realities, they have the need of warming otmostki no doubts.

Kirill Paramonov

The importance of the blind area as the protective component, undeniable, as regards the choice between non-insulated and insulated variant - it is obvious. Insulated blind area can reduce the impact of frost heaving forces throughout the lifetime of the building. Whereas the difference in cost if there is a constructive "cake" of energy-efficient insulation material with minimal water absorption (extruded polystyrene) is negligible. If you take the cost of materials for the blind area of ​​50 meters in length with a width of 1 meter, it will be less than ten thousand. This "drop in the ocean" will not affect the budget, but in the future will save much more.

And it is not only and not so much to reduce heat loss, although this figure is important in the long term, as about practicality. Impermeable circuit insulation resistant to moisture and stress, the barrier will remain reliable, even if the final coating lose tightness. Repair work will be kept to a minimum, while at the cracks in the concrete monolith laid on training, restore the canvas will be much more difficult and expensive.

Apparatus insulated otmostki: step algorithm

The durability of any construction depends not only on the quality of the materials used, but also on the compliance process. Very convenient that weatherization blind area and if you want to do yourself, follow simple instructions.

Substrate preparation

The first step along the perimeter of the width of the sheet of insulation (plus a small margin to the drain pipe) is selected topsoil layer with a thickness of 30-40 cm. To ensure the water drainage during excavation maintained base bias from the base is 5-10% (1% is 1 cm per meter of width). Simultaneously mounted storm sewers: gullies mounted at the corners and placed drainage pipe. The alignment layer is formed sand pillow with stratified dumping, wetting and tamper each layer. In finished form the thickness of the cushion should get at least 5 cm, by preserving the original bias.

Laying insulation and drainage membrane

Plates are placed XPS preparation closely to the base, thanks to the tool joint (L-edge) formed solid insulating circuit without cold bridges. Fixation of the insulation is required, it will be securely pinned following layers (membrane, drainage layer, topcoat or filling), and L-edge impede shifts in the process of further work. Above the heater, with a stop wall at 100-150 mm (height approach is tied to the thickness of the finishing layer), a two-layered stack profiled geotextile membrane, for generating a protective sealing layer as well as filtration and removal water. Laying sheets carried along XPS, compound web is made by connecting the "spikes" shaped membrane between themselves, the overlap is four "spike."

• Bend connected with the ends of the layer of geotextile.
• Tightly fix the studs in the grooves.
• Geoetkstil fix the seam specialized sided tape (width 50 mm), thereby the encapsulation compound.

Fixing to wall membrane / socle, made either by a double-sided adhesive tape, or on dyubelirovaniem fungi (in the absence of waterproofing). In this way, the blind area completely overlapped joint portion and the base plinth, and sealing the insulation is provided by an absolute circuit.

Apparatus protective layer

To ensure a good outflow of water and protect the geotextile from damage, on top of the drain shaped diaphragm operate podsypku gravel (fraction 20-40 mm), the thickness of the layer is 50-60 mm. In the event that the preferred soft insulation blind area, gravel backfill can act as a finishing layer. No principal differences, but the cushion thickness is increased to 100 mm, in the filling process are established and curbstones.

Apparatus topcoat

Insulated blind area on the basis of XPS and shaped bilayer membrane is universal and combined with any topcoat. If soft otmostki preferably gravel, rarely, lawn, the monolith as a decorative layer is usually paving and its analogs or the concrete.

• Paving and similar materials - on top of the protective layer of gravel, sand podsypku operate a layer several mm. Paving stones laid on a dry cement mixture with sand in the ratio 1: 5, starting from foundation, stitches (at least 2 mm) overwrites the same DSP. After laying the paving blocks and kerbstones, otmostku abundantly shed to solution strength and scored branded securely fixed coating. If the cake is not structurally shaped membrane and insulation carpeted plastic film, paving stones laid on the compacted sand bed without gravel layer. As an option - paving / analogues are placed on a sand preparation, the seams will be overwritten by the DSP.
• Pouring concrete - with this topcoat shaped membrane is replaced with polyethylene film, is laid over the insulation boards. Concreting can be performed directly on top of the film and on the layer of compacted sand preparation, in this case sand is also separated from the concrete film. To withstand regulatory protective layer reinforcing mesh is laid on supports, for concreting necessarily comply with expansion joints. Care otmostku concrete to complete setting the standard - are covered with the film and / or periodically moistened with water.

Output

Insulated blind area - a required element of the design, which device it is possible in the home. In the application of high quality materials and compliance mount technology coating is reliable and durable.

Kirill Paramonov

When used as a heaterXPSCARBONECO with the device increases the service life of the blind area home reduces heat loss through the foundation, due to the high heat-shielding properties of extruded polystyrene, in addition,XPS protects against freezing and frost heave. This type of material such asXPS is environmentally safe. It does not absorb moisture, does not rot, is not affected by mold or micro-organisms. Material was voluntaryLeaf of Life certificationand is recognized as an eco-friendly and relevant regulatory requirements.

Insulated blind area - reliable insurance against heat and frost heave for many years. Foundation, protected from all negative influences - the key to long years of quiet life in the house. In the video - a master class on the device insulated blind area.

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