The thermal conductivity of the floor moisture-proof film is poor because common moisture-proof mats are often non-porous and covered with air-impermeable plastic film or aluminum foil reflective.
The non-porous, moisture-resistant mat covered with a breathable film has poor thermal conductivity, which prevents heat from the underfloor heating below from being transmitted to the floor to warm the room. This results in a situation in which the underfloor heating remains on for a long time, but the room is not warm. At the same time, a large amount of heat from underfloor heating is trapped below, which will cause heat accumulation and the underground temperature to be too high, which has certain hidden dangers.
Installing underfloor heating requires the installation of a layer of membrane, which is a moisture-resistant membrane.
When installing underfloor heating, the floor slab contains a lot of water. When the ground is heated, a large amount of water will overflow. It is very important to avoid moisture during the flooring process. moisture-proof membrane is very important.
Usually, the installation process is simply to lay a layer of moisture-proof carpet under the floor, and the joints of the moisture-proof carpet are also tightly sealed with adhesive tape. However, when the geothermal temperature is high, the tape will be degummed after being heated, and the joints of the waterproofing and moisture-proof pads will become breathable, causing moisture-proof failure.
Therefore, a layer of plastic film (thickness about 0.1 mm) should be laid on the floor, overlap the joints by 200 mm and seal them tightly with adhesive tape, which can get a good effectmoisture resistant.
Detailed information:
When installing underfloor heating, no mulch moisture resistant mulch has been used or the moisture resistant mulch has been damaged. Or improper installation will cause the floor to deform due to moisture.
The moisture-resistant membrane must be laid flat and cover the entire floor. Joints must overlap by at least 200 mm and be tightly glued with waterproof tape. The part close to the wall must be more than 50 mm above the floor. floor and be connected to the wall with adhesive tape. The body is tightly stuck together; it is recommended to lay an additional layer of moisture resistant film on the floor on low floors and in damp areas (note that moisture resistant film does not do this). not aluminum material).
Adding a layer of heating film between the underfloor heating and the floor canut dissipate heat more evenly and quickly through the heat dissipation holes to avoid heat loss, while ensuring heat conduction and preventing moisture from rising to the ground. Aluminum clad film can ensure that melting, shrinkage, spraying and harmful gases will not occur at high temperature.
Baidu Encyclopedia - Floor Heating
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