Solutions to the condensation phenomenon of space frame engineering

If the space frame design is not comprehensive in the early stage, it will cause the textile, paper, and other industries to prevent condensation, and the design of the space frame plant will be very passive after the completion of the use of the space frame warehouse. Therefore, the space frame structure should be prevented from condensation.
The thickness of insulation cotton cannot be underestimated, and the roof is made of glass wool with a thickness of 150 or more. The temperature of the board is lower than the dew point due to condensation, and there is water vapor in the room. A professional data is: the difference between the surface temperature of the board and the room temperature is generally within 3 degrees, and the thickness of the insulation cotton is thicker and better. There is also a ceiling to form an insulation layer, similar to the principle of a thermos, the air insulation layer is not bad, and it is also a very good insulation method.
The room should be ventilated frequently. If the indoor humidity is high, make a few natural ventilators to exhaust the air. The humidity can be reduced, but the disadvantage is that the indoor temperature will be lowered;
indoor veneers are required to be smooth and not sharp. The lower veneer of the roof panel should be made as flat as possible; the purlins are made of Z-shaped steel lapped type, and the Z-shaped steel lower wing plate is warped, similar to a gutter, and can drain the condensation water in time.
The vapor barrier of the space frame is required to face indoors, because glass wool absorbs water greatly, and the heat preservation effect is greatly reduced after water absorption. Now some colleagues strongly recommend thermal insulation cotton + polypropylene veneer, but now there is such a product: anti-condensation coating. Based on ensuring the thickness of the insulation cotton, it is difficult to apply condensation-proof paint.