How not to make a blind area around the house: common mistakes

Often they do not pay attention to the blind area. The foundation was erected, a house, windows, doors, a roof were installed. Then they leave a blind area and after a while they complain about a broken foundation, cracks in the walls, etc. All problems can be avoided if you make protection for the foundation.

There are two types of blind area: soft and hard. About the soft option we wrote here. Let's talk about mistakes and what they can lead to when constructing a blind area.

If you notice constant puddles after rain on the surface of the blind area, then it means not made a tilt. It will be correct to make a slope of 2-3 cm. one meter of the width of the blind area. But it all depends on the type of soil subsidence. The maximum slope should not be more than 10 cm. the width of the blind area is 1m.

Paving slabs and any other blind area design can not be wound for the finish of the base. After a while, the plinth finish may crack and be destroyed in parts.

Therefore, it is recommended to make a gap between the wall and the blind area of ​​1-2 cm. Fill this gap with sealant or other material.

What should be width blind areas? Maybe you can save money and make a narrow blind area? Many people think so. Experts recommend making a width of 20 cm. more than a roof overhang.

Cracks. Do not make mistakes in preparing the solution. Use cement (M400). The proportions for the solution are as follows: sand (2), cement (1), fine crushed stone (3 parts). And then water is added.

Reinforcement of the blind area. Some do not reinforce with reinforcement. But the concrete blind area is a movable structure, therefore it is recommended to use a mesh. This will increase strength, add rigidity to the concrete, and prevent cracking. However, if the soil is hard, then reinforcement can be dispensed with. And when the soil is loose and loose, then it is imperative to strengthen the blind area.

In addition, it is necessary to lay wooden bars. These expansion strips will prevent the concrete from cracking. Instead of bars, you can use expanded polystyrene.

Insulation of the blind area. On heaving, clayey soils in winter, heaving occurs and this is the cause of the destruction of the foundation structure.

If the waterproofing of the soft blind area is not done correctly, then it will allow moisture to pass through and this will negatively affect the foundation of the house. Therefore, a profiled membrane is laid with an overlap on the walls.

More on the topic: rubber crumb blind area.

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