Home > News > News > PVC Construction method


PVC Construction method

  • Author:dongsheng-eva
  • Release on :2017-02-23
Construction method

Cold sticking adhesion
It's applied to side wall of basement, basement roofing. PVC sheet can be bonded tight by special adhesive with the base course, playing the role of insulation,protection and buffer.

Melt adhesion
1. The PVC waterproofing membrane should be paved smoothly without bending, drooping, strain, wrinkles, damage etc.
2. The solder side shall be cleaned and kept dry before seam welding. The angle between welding tip and welding direction should be 45o. Compression roller and welding tip parallel with a distance of about 5mm. Bright-colored melting appears around welding tip. Solder skips, skip welding, scorch and infirm welding shall be forbidden.
3. At single-seam welding, the lap width shall be no less than 60mm for roofing project and no less than 100mm for underground project. As to double-seam welding, the reserved lap width depends on different welding machines. 
4. The closing end of sheet is fastened by special trim strip, with maximum distance of no less than 900 mm between nails. Sealing compound and cement mortar are used for final sealing and covering.