The reason for using vapor barrier in the foundation

The reason for using vapor barrier in the foundation

Floor covering protection The concrete foundation of your building may be stone. Material concrete It is porous. Water vapor always comes from an environment with high relative humidity below building to an area with low relative humidity - even through concrete - is transmitted In the lower part of the foundation, there are water and alkaline salts that cause The pH of the environment increases. Water under the slab can form through the slab The steam spreads, then condenses under the floor, which can cover the floor destroy Diffusion of water vapor through the concrete slab can also result To change the shape and color of the floor covering material and lead to repairs Expensive or even replaced. Protection of materials on concrete exposed to moisture When the materials on the concrete are exposed to moisture, they partially block the passage of steam. humidity with It moves at a lower speed and eventually starts to condense and collect under the floor. This water accumulation It can damage sensitive materials Prevent mold growth The presence of water in any environment leads to growth It gets moldy. If not installed A high performance vapor barrier below Foundation, a way to protect The building against the moisture entered into Your building does not exist. The presence of moisture It can be in your concrete foundation Your indoor air quality is affected put negative Vapor barrier under the slab can To prevent the entry of radon gas under the slab which can lead to lung cancer help. The same floor covering adhesives Can be affected by liquid water and environment be placed with high pH (causing Your floor covering will also disappear can with indoor air quality cause problems Concrete protection Common salts found in cement (alkaline) react with certain forms of amorphous silica that exist in some types of aggregates. data and form a gel. When the internal relative humidity of the slab reaches 80% or more, the gel expands. The result can be Destructive enough to seal the joints and cause irreparable cracking on your board. The only controllable variable is humidity. If you use Portland cement concrete, you will have alkaline salts in the slab. Depending on your geographic location, you may not be able to remove reactive silica from your aggregates. but may You can control the amount of water entering your slab by using a high performance vapor barrier.