Teach you how to prevent polycarbonate roof leaks?
1. Wrong use of sealant
During the installation process, we learned that the cause of water leakage in many projects is the incorrect use of sealant. PC solid sheet and PC sunlight sheet have very strict requirements for sealant, and one of the most important points is neutral silica gel. Many customers do not understand the situation and apply acid-base glass glue to form an incompatibility with PC solid sheet. Compatibility, resulting in water leakage of the board; another factor is the application of inferior sealants, because the sealant market is also very complex, and many customers do not know what sealant to use for sealing, so the PC board and the bead part have poor sealing performance. cause water leakage.
2. The coefficients between the reserved PC boards do not match:
We know that the characteristics of PC solid sheet and PC sunlight sheet are very important, which is thermal expansion and contraction. It is necessary to reserve space for thermal expansion and contraction between the plate and the plate.
3. Improper installation
Due to its low density and light weight, the weight of the same volume is only 1/12 to 1/15 of that of glass, so it is easy to handle and install. However, due to its light weight, it is necessary to consider wind load or wind load during installation. The deformation of the board surface caused by other external forces, so as to avoid the deformation or cracking of the solid board.
How is the endurance board sealed?
When installing a solid board, the sealing technology is a key factor that determines its installation quality and later use effect. Therefore, not only should a suitable sealing technology be selected for different working environments, but also for different parts of the solid board, the sealing process should also be different. the difference.
Whenever the hardboard is installed, it should be ribbed down to help drain the condensed water that would otherwise deposit in the tank and form green impurities at a particular temperature. In order to avoid moisture accumulation and dust contamination in the tank, attention should also be paid to the sealing of the edge of the solid board.
Before sealing this part, make sure that all edges are smooth, and at the same time blow the dust in the groove; secondly, the tape used for sealing should cover the solid board completely, and all the solid board should be covered before installation. The edge banding tape is replaced, because the edge banding tape of the solid board is only for protection during transportation and storage, not for water drainage and installation.
For the flat endurance board, the sealing method is relatively simple. It only needs to be sealed with a water release tape at the top slot, and the bottom slot is sealed with a perforated filter tape, and U-shaped profiles can be installed to wrap the bottom. A perforated filter belt will do.
Since there is a flat seal, there is naturally a curved solid board seal. Both ends of the solid board groove should be sealed with perforated filter tapes. When sealing, care should be taken to ensure that both ends are clean, otherwise it will not be conducive to the discharge of condensed water. In a specific environment, special attention should be paid to the standardized work of installation.
The installation of the endurance board mainly pays attention to the standardized sealing method, and also must provide suitable accessories to achieve an easier and more suitable installation scheme. Covered solid sheet installation accessories include corrosion resistant fasteners, custom gaskets and gaskets, compatible seals and adhesives, and more.
