In construction private houses there are nuances, at first glance, seem not quite so important. In fact, just one of those little things add up not only a holistic architectural pattern, but the safety of your home. One of these nuances - blind area. In this article we will discuss HouseShief.ru, which need a blind area around the house, and what material and how best to do it.
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- 1 What is the blind area, and whether you can do without it
- 2 The functions of the blind area
- 3 Techie device blind area around the house
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4 What otmostku I choose palette options
- 4.1 Features concrete blind area around the house
- 4.2 The attractive blind area of gravel and crushed stone
- 4.3 Clay foundation protection
- 4.4 Soft blind area around the house of modern waterproofing materials
- 4.5 Beautiful: the blind area around the house from a stone blocks
- 5 What is insulated blind area around the house
- 6 How to make a blind area around the house: tips and video instructions
What is the blind area, and whether you can do without it
First of all, let's deal with the term. Blind area - a band covering, located on the perimeter of the building, and directly adjacent to it foundation. Make it a coating of durable moisture-proof materials, resistant to external influences.
The main task of the blind area around a private home - the protection of the foundation.
Are all foundations We need such a design? ribbon - definitely in need of strong protection, since the uneven subsidence of the soil in the immediate vicinity may cause the destruction of the house foundation. How about if a blind area need to pile foundation? If the foundation is based on metal stilts, they especially need to be protected from exposure to atmospheric moisture. Concrete piles are less afraid of the ground deformation, but they last longer with seal section. So the answer to the question of whether you can do without blind area, is clear: of course not.
The functions of the blind area
In the strip along the perimeter there are important functions:
- decorative - flat wide blind area in the country gives the site finished neat appearance;
- protection - a liquid impermeable layer prevents foundation from exposure to rain and melt waters;
- thermal insulation - a strip of concrete or asphalt does not freeze the ground, and foundation home stays warm;
- protivpuchinistaya - protection against the ingress of moisture and frost heaving solves the problem with soil. It is not deformed and does not create pressure on the foundation.
Among other things, gravel or concrete strip can be used as a pedestrian pathIf it is wide enough and has a slight slope.
Techie device blind area around the house
Protection of the foundation can be made of several kinds of materials: clay, concrete, Bricks, paving slabs, asphalt or a PVC membrane.
If you want high-quality construction - protection should consist of two layers: the underlying and upper. Underlying - it pillow of sand and gravel or gravel.
Note! The ground beneath the protective coating does not interfere with handle concentrated herbicide. He will prevent germination of roots and herbs.
The surface layer must not pass moisture. Its thickness - at least 10 cm.
Important! Reinforcing mesh must be a movement joint, that is, the gap between the cap and the blind area. This seam sealed with mastic or bitutmom.
Any protection is at an angle from the base to prevent water dripping from the house, and did not stand at its base. The right slope - about 15-25 °, but not less than 1,5 °. Rain and melt water will have an unobstructed outflow.
Now, on what should be the width of blind area, located around the house. The width of the blind area around the house according to the norms SNIP - greater than the width of the cornice roof at least 20 cm.
What otmostku I choose palette options
Everything for a guard band is not necessary to use only the concrete: there are many other options that are not as effective as cement fill.
Features concrete blind area around the house
Concrete visor - the most common variant of the foundation of protection. The cost of its arrangement is relatively low, and the service life with proper installation is several decades.
But there is this kind of coverage and cons. Such protection is unlikely to look like a decoration of the building, and eventually, collapsing from precipitation, and did become unsightly.
A flood formwork I have at one time to get a monolithic structure.
The attractive blind area of gravel and crushed stone
Rubble can be an excellent insulator for a building foundation. He is not afraid of frost, but due to the soft structure is not destroyed by shifting of the soil. Gravel is a blind area in a matter of hours. It is easy to make yourself.
Disadvantages posypnoy protection also make you think: it is difficult to clean from fallen leaves and other debris in the gravel quickly prorarstayut weeds. And moisture permeability in this design is quite large.
Clay foundation protection
Clay Castle - an ancient method of housing protection against moisture. It was used centuries ago, and is still in the course of this method. Clay not only protects the foundation from the penetration of rainwater and meltwater, but also perfectly warms structure. She is not afraid of changes in temperature and soil shifts, freezing and thawing cycles.
Deficiencies in a blind area of clay is extremely small and probably the most important of them - the appearance. But this problem can be solved and covered layer of clay colored gravel.
Soft blind area around the house of modern waterproofing materials
This type of protection involves the use of a different sort membrane materialsOffering modern manufacturers. Important in this arrangement the blind area - bury it in relation to the ground level, the right to organize and arrange on top of the slope of decorative grit or lay turf or roll lawn.
The soft material is not afraid to seasonal movements of soil and frost. Incidentally, it is a hydraulic protection prefer to owners of private houses in Finland and Norway.
Beautiful: the blind area around the house from a stone blocks
Make a perimeter around the house can tiles, Paving stones, brick or even cobblestones. Such blind area look very original, but do not forget that they should equip so that rain and melt water does not seep through them and trickled down the side. And to achieve this not only with the effect of piece goods.
The rest of this protection is showing excellent results: it is not afraid to soil deformation, frost and other external troubles.
Comment
Mikhail Starostin
Team leader repair and construction company "Home Premium"
"Do not try to seal the joints of masonry cement - he still crack due to ground movements. Make bottom layer of waterproofing and fill seams conventional sand. "
In the photo - the options blind area around the house made of tiles and pavers:
What is insulated blind area around the house
Any of these types of blind area can be supplemented with insulate layer. What is it for? In locations where low temperatures are very long, it is necessary. Freezing the soil containing much moisture is able to break even a durable concrete.
How to choose the right heater for this purpose? There are several materials that can be used:
- expanded clay aggregate - moisture resistant, durable and fireproof, it is perfectly insulate the foundation from the outside. It can be added directly into the concrete during pouring;
- polystyrene and polyurethane foam - these materials have excellent thermal insulation characteristics and can be used not only for insulating the walls and roof, but also the foundation. There is such a lot of treatment, and be sure to pour on top of the concrete blind area;
- penoplex - not the best choice for the blind area, because it is too fragile.
For otmostki soft layer of insulation can be placed between two layers of the membrane.
How to make a blind area around the house: tips and video instructions
For any type of arrangement of the blind area must first make a layout to the width of the roof and eaves digging a shallow pit, which will be laid and the insulating material. The depth of the trench - about 25 cm.
Treat the earth herbicides - use "Roundup", "Hurricane" or any similar drug. Do not be afraid to go too far - this treatment will serve you for many years.
If you do not want the bulk material is left in the soil Cover the bottom of the trench geotextile.
If you plan to concrete organization of the blind area - do not forget about the joints, subsequently to a blind area not pressed on plinth.
Important! After pouring the concrete for a week watering it with water, to avoid cracks from drying.
How to pour the blind area around the house and all the subtleties of the work - in this video:
So, without blind area, as you know, anywhere. This seems to be not such an important part of construction of the house, as it turns out, has a very practical purpose. What is it to do - decide for yourself, but remember: it must reliably protect the foundation from atmospheric moisture.
If you have experience in setting up the blind area - share them in the comments!