Six tips on polycarbonate sheets fixed installation

  1. The fixed nail head diameter of polycarbonate sheet should be more than 1.5 times of the diameter of the screw shank and with waterproof glue. In order to reduce the pressure, Do not nail head the direct oppression plate surface.
  2. Screws installed on the polycarbonate sheet should not be too tight, otherwise it may lead to stress, causing the local board crack.
  3. Do not use waterproof adhesive PVC pad or asphalt waterproof adhesive tape as waterproof glue. Choose neutral glass glue as sealant but never use acidic glue.
  4. In the middle of the process, you should fix one side and then construct along the same direction otherwise it would cause the intermediate stress concentration, the product deformation or cracking.
  5. Due to the coefficient of linear expansion of the PC sheet is about six times larger than the metal material, so the sheet must be first drilled and then fixed with self-tapping screws in the middle aperture. Otherwise the PC sheet will crack or shrinkage deformation due to the remove and the weather change.
  6. If increase a layer PC flat sheet or phototherapy watts below the corrugated sheet, in the fixed point add metal bar on the below PC sheet in case of causing cracks.

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