Metal roofing aluminum-magnesium-manganese plate ventilation noise reduction net manufacturers, steel frame building 6mm sound insulation wire mesh 8mm noise reduction net.
The thermal insulation of the aluminum-magnesium-manganese alloy roof panel requires that the temperature of the inner surface of the enclosure structure is not lower than the indoor temperature, so as to ensure that the surface does not condense.
1. Cause of condensation.
Caused by the surface temperature of the object being lower than the temperature. In the steel structure, the metal enclosure plate is connected to the purlin by fasteners, and if no special treatment is taken, condensation will occur at the parts where these metals are connected. When there is an inner lining plate, the temperature of the inner lining plate decreases due to the cold bridge, and it is difficult for water vapor to pass through the inner lining plate, so there are obvious water droplets on the inner lining plate.
2. Condensation and condensation hazards.
The thermal insulation performance of the insulation cotton is inferior, and the water vapor may cause the veneer to drip and cause the veneer to rust; The contact of water vapor with steel components can lead to rust and shorten the life of the roof.
3. Anti-condensation design.
Set up the vapor insulation layer: it should be arranged on the side where the water vapor flows in, so the heating house should be arranged on the inside of the insulation layer, and the cold storage building should be arranged on the outer layer of the insulation layer. Polypropylene sandwich veneer is ideal, while aluminum foil veneer is easy to use moisture. rust and should be avoided. Set up ventilation layer or vent channel: If there is a ventilation layer between the outside of the insulation layer and the roof panel, the steam infiltrated from the room can be carried away by the air flow that is constantly exchanged with the outdoor air, and the insulation layer can play a role in air drying.