Why need home blind area, and how to make correctly: monolith, soft, insulated

Do I need a blind area as a protective and decorative element. Constructive species, implementation

Often during the construction of their own home, many underestimate the importance of the structural elements that are not directly affecting the parameters of the house. That is, if without the foundation, floors and roof, can not do, the unit of drainage system or a blind area in most cases lay "for later". And then, then no, the budget does not allow, and then "and so goes", "have no neighbors and normal", "decades of homes are without it and nothing." Yes, there are, and like, nothing, just "Let's go" foundation in tandem with cracked walls, too frequent occurrence. Although the most common cause of this condition houses just the accumulation of moisture in the base due to direct contact with the wet soil. So what explains their opposition opponents pavings, what arguments lead their supporters, and how to make blind area - we consider in the article, based on the experience of the participants of the portal.

Content

• Blind area - and against
• Purpose of the blind area
• Regulatory requirements for the blind area
• varieties pavings
• Insulated otmostka
• The cost of the blind area

Blind area - and against

The presence of a blind area provides construction standards, since it is considered to be mandatory elements of the building, but if for professionals is a truism, then there are other privateers point of view.

Mickas

Member FORUMHOUSE

Reviewed a bunch of American and Canadian literature on the construction of homes - I never met a blind area schemes. Apparently, this is a purely Russian invention. They are all simple and logical: waterproofing of the foundation, including pupyristoy membrane, drainage pipe below the foundation and backfilling with gravel. And there is no need to enclose the concrete trail around the house and sponsoring manufacturers. For me, the blind area of ​​the house does not complete, and looks like a launching pad for the Topol-M. This is only my opinion!

Recinto

Member FORUMHOUSE

Plus, all these dances with the blind area - it's just to make concerns and other mountain builders to unknowing customers.

Greider

Member FORUMHOUSE

For me, it spoils the blind area of ​​the building. Its importance is emphasized. There is nothing better when the right wall lawn begins. How much can you repeat the mantra "house gets finished appearance" and the removal of moisture? As for me, as a blind area is very spoils the appearance and composition of the house. It turns out some kind of support for the home. And there, in the land, as a rule, so much moisture as no rain from above not pour. Houses are hundreds of years without any blind areas and thermal insulation as well as whether to bother?

The fact that American technologies are not intended device blind area, it is quite logical.

UncleSam

Member FORUMHOUSE

Mickas, and you zaguglit what depth of frost penetration in the same California, and you will understand why.

Yes, and charges that the sole purpose of blind areas of the device is "pumping" money ushlymi manufacturers of specialty materials, to put it mildly, are not justified.

Rustex

Member FORUMHOUSE

Lord, listen to you - so perhaps the "managery" otmostku invented. Believe me, this technology is a much more old and time-tested. In order to "lawn of the house", made of soft blind area. Well, to build completely without blind area in our climate - I consider unnecessary risk for the home.

So is it worth the risk, if the blind area of ​​the device does not require highly complex manipulation and savings, the minimum on the background of general costs in the future can result in a much larger investment.

Purpose of the blind area

Otmostka foundation surrounds the entire perimeter and is wide, waterproof strip projecting overhang of the roof is not less than 20 cm. Its main purpose is to protect the base and cap of rain and melt water - the width of the blind area is enough to prevent infiltration of soil in close proximity to the base.

This reduces the load on vertical waterproofing and drainage system. Water is not only "wears away the stone," but also "always find a hole," and it is better to be safe than to pump the water out of the basement and try to eradicate mold antiseptics. In addition to the core, at the blind area and additional functionality.

• Architectural element - taste preferences are different, for the majority of the presence of a decorative "edging" in the facade still dignity.
• The pedestrian zone - even in good weather it is more convenient to bypass the house is not on the ground, and on the paved surface, but it works mostly with solid blind area. But when there are slush, and then backfilling stomp preferable.
• Thermal insulator - insulated variety of blind area is one way to prevent frost heave and soil under the foundation.

And if no border for the facade totally is not critical, as without track really do, then waterproofing the excess can not be. The presence of the surface in addition to the vertical, significantly increases the chances of the foundation bed of roses.

Regulatory requirements for the blind area

As with other elements of the buildings, the parameters of the blind area regulated by building codes.

• Surface requirements - impervious to water.
• Width - according to the Civil recommendations dating back to 1975. The more, the width of the blind area should be between 0.7 m and if we take the norm, designed for Moscow region in 2002 year, it is from 0.8 to 1.2 m on conventional soil and from 1.5 to 3 m in complex geological conditions. Also this parameter depends on the width of the overhang to cut with the drop did not fall to the ground, the strip should overlap the overhang 20 cm.
• Slope - necessary to prevent stagnation of water and its exhaust instant, the transverse inclination of the blind area is to be from 1 to 10%, of Moscow, this value of 10%. Slope value, expressed as a percentage, is the ratio of height to width, for example 1%, is 1 cm per meter of width of the highest point of the wall.
• Distance from web to a basement - 2 cm, since the shrinkage and Home otmostki be uneven, between the web and the foundation required expansion joint. This seam is relevant for concrete and similar coatings, for which the absence of deformation and fraught with loss of integrity.

varieties pavings

Long time been standard and blind area as a base on compacted soil (clay) and the preparation (sand, CBC, crushed stone), poured reinforced concrete layer. Often, it becomes simultaneously and finish, and its coating to impart high strength cement same type iron. Also popularity enjoyed various tiles, laid on top of a concrete slab, as a solution, and the dry mixture by pouring. Asphalt blind area met in the courtyards paved at one time was a real "plague" and every free meter, including the blind area, tried to roll up the asphalt. But in any case, the ball is ruled concrete.

Bonne

Member FORUMHOUSE

Better and more reliable there's nothing concrete. I poured concrete, zaarmiroval reinforcing grid, and on top of laid paving slabs. And does not sit down tiles from the water, and the water does not penetrate into the ground near the walls. Just imagine, for example, that if the membrane or polyethylene breaks, and all the water will collect rainwater in an artificial trench around the perimeter of your home! It's the end! Concrete comrades, just concrete. A top sypte though granite chips with gold dust.

As already mentioned BonneToday expanded choice and besides rigid blind area with a monolithic base, increasing distribution receives her soft variety, which is the difference between the permeability of the final coating. Instead of moisture from the concrete layer and the foundation soil is cut by a special "pupyrchatoy" or other non-specialized membrane material (banners, reinforced polyethylene). As a decorative coating for such konstruktive Sediment can be both species (gravel, granite screenings) and lawn coating, and any other material which is appropriate mode operation. Subject to the technology of stacking or polyethylene, or, especially, with membranes designed for such specifics, nothing will happen.

petro78

Member FORUMHOUSE

15 years ago, when there were no materials and information, he concluded that the concrete pour 10-15 m³ as a blind area is inappropriate. He invented his own way. Removed the soil around the perimeter of the house, paved with sand rammer and slope away from the foundation, spread the tent (the banner) to hollows foundation adjust to not slipped and rain water does not drenched tape poured over the sand and granitic rubble. Along the perimeter of the logs laid on the old building as a curb. Everything works fine. This season, replaced rotten logs on the curb, and paved the perimeter drainage and storm sewers. The only negative, rubble from the operation shifts (periodically need to pour and rake to level) and women in heels are uncomfortable.

One of the participants of our portal, with the nickname Balabollng, He likes to relax in Finland, where he had gone, and this past summer. He notes that the Finns use a soft, hidden otmostku everywhere cottage on the photo for more than twenty years.

Typically, the receiving trays stormwater installed simultaneously with the device blind area, regardless of the species. If necessary, also mounted prifundamentnaya drainage system. Instead of ready-made trays are used as the means at hand, for example, cut along asbestos or plastic pipes, as well as simply pits in the ground on which the water flows.

Insulated otmostka

As a monolithic and soft blind area can be insulated and, although not everyone understands the principle of action and its effectiveness on clay saturated soils is undeniable.

Mviktor

Member FORUMHOUSE

Do not understand how insulation may operate in the blind area, at a depth of 1.5 m and freezing as a negative temperature by a heater can not be critical.

Alexkorkhov

Member FORUMHOUSE

Insulation biases the freezing depth higher (1.5 meters, and, for example, 0.5). If this depth is sandy pillow, then the depth of freezing will be in the sand, and the sand is not heaving soils and will not inflate. It is in this sense of warming as the blind area, and any unburied foundation.

In soft insulation is laid on top of the blind area of ​​training, before the waterproofing layer, in normal, on top of the preparation before the reinforced concrete layer. As for thermal insulation of the foundation and base, and for insulating blind area using extruded polystyrene (Epps), characterized by high strength, durability, and minimal permeability. It does not rot, is not pressed, and even designed to direct contact with water, without losing its properties.

The cost of the blind area

The bulk of the participants in our portal to cope on their own and with a more global challenges, and the blind area for them is also not a problem. It is allowing solid savings, since the cost of hired services is impressive.

serg7575

Member FORUMHOUSE

I plan to blind area around the home, the overall perimeter of 42 m. The soil, sand, foundations, MZFL (lies on the ground). Master said that the work will cost 1500 rubles per linear meter, which is 63,000 thousands. In this case, the cost of materials calls 55 000 rubles. Somebody might say, all say that the work is not hard and should not exceed the cost of materials, and sometimes less. Question: Do I obegorivayut? Whether trying to inflate the value of the work?

Asuspajero

Member FORUMHOUSE

Based on materials calculators enough - count from the manufacturers on the site, and work on the issue on the Exchange can be set.

If you use one of the calculators offered, the cost of materials for the blind area length 50 meters, a width of 1 meter (pie includes specialized membranes), various types are following.

At the exact amount will also affect transportation costs and region of residence, and the cost of the materials may be different from the calculation laid down in the market, but the estimated costs visible. Also visible, and the difference between the non-insulated and insulated blind area, which and subject to the acquisition of the XPS is not the cheapest, It is less than 7000, and even with the possibility of adjusting this amount is not so large as to influence the choice constructive.

Asuspajero

If arrange blind area, it makes sense to lay the insulation and in the amount of the total cost is not so radically increases the cost of the process as possible repairs because of shifts caused by heave. Over the cake, in principle, everything is standard - around the house remove soil, sand making pillow, laid the XPS, on top of a profiled membrane with a layer of geotextile sand on it and the tiles on the DSP. The membrane and drainage and filtering function will execute, the XPS will protect from freezing.

Reduce costs is quite possible not only through work, but also through the use of membranes another brand instead of isolation. But is it worth it, given that the blind area should last more than one decade, the decision of the individual. Hard or soft, insulated or non-insulated - blind area is needed and this is not the case when there is a zero in on the champagne.

For soft blind area technology can also be made Sediment garden paths. If you need a full pedestrian zone, as a coating for monolithic blind area is perfect printed concrete. In the video - mounting bases and insulation slab foundation, the base and the blind area.

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