How to provide waterproofing basement?
Basements are actively used for various purposes: winter storage and supplies are stored in personal basements, and premises under apartment buildings are often used for small shops, cafes, gyms and workshops, etc. Since basements are practical and versatile for various purposes , they need to be properly prepared for use. One of the most important moments in this case is waterproofing the basement from the inside from the groundwater. Without it, the walls will quickly collapse, as the concrete absorbs moisture well, and after that, with the onset of cold weather, cracks form in the walls. There are several types of waterproofing.
It is used when there are no means for drainage in the basement and when groundwater is located at the level of the walls. Thanks to her, you can prevent the ingress of additional moisture in the basement, often used in conjunction with the horizontal.
Before starting a vertical waterproofing, the surface of the walls is cleaned with a scraper, the dirt is removed, then anti-mildew, microbes and fungi are applied.To do this, use the canvas in the form of rolls, making the overlap between them not less than 10 cm. Ultimately, the surface of the walls must become dry and clean.
- If the waterproofing is used ruberoid, then the seams are applied suitable mastic.
- Bitumen mass is a good tool. It is applied using a special roller or brush, and also use a spray gun.
- A flat membrane membrane is fixed or glued with special screws and welded.
It will be useful if there is water around the building that quickly accumulates water, or underground water flows under the floor. Groundwater flow patterns may change, the amount and frequency of precipitation may increase, and fast-melting spring snow will affect soil quality. To warn your basement against high humidity, especially if there is a prospect of further use of the room as a residential, you must make horizontal waterproofing. It uses flat membranes with a width of 10-50 cm, which prevent the ingress of water from the ground near the building.
This is one of the main types of insulation that a basement room needs if you plan to use it for a long time. Together with the vertical waterproofing horizontal provides the room a solid protection.
This waterproofing will be needed in the following cases: if water disposal is not established, no external means for waterproofing are provided, and if groundwater flows at a depth of at least 10 meters. The mechanism is simple: special materials are pressed to the surface of the earth groundwater flows, so that water does not fall into the basement. Used for waterproofing roll seals, rubber and membranes and bitumen. To enhance the result, a barrier is made; clay is placed in a trench near the walls.
This protects the premises from falling into the interior of precipitation and water from flooding. As the material used bituminous plastic. If anti-pressure waterproofing was previously installed, then free-flow is no longer required. Non-pressure waterproofing is carried out in the event that groundwater is located at a lower level compared to the foundation.
Injection and anti-capillary waterproofing
If there are cracks in the room through which water flows, it is necessary to carry out injection waterproofing. To do this, use special compositions and equipment with which you can eliminate cracks by injection. First poured the floor, and then the walls, forming seams. To prevent meltwater from showing through, special fixers, for example, polyurethane resins, are applied to the seams.
Anti-capillary waterproofing helps to prevent water from entering through the capillaries; injection is also used for this. The technique is the same: with the help of special devices, the voids in the walls are filled with liquid, which solidifies and then prevents water from seeping back into the room.
To provide high-quality protection to your basement, you first need to decide how long and why you will use it, also take into account the weather and soil conditions and then decide on a suitable waterproofing method.