What Are The Specific Construction Steps Of PVC Waterproofing Membrane?

Polyvinyl chloride waterproofing membrane is also called PVC waterproofing membrane. Through the previous articles of the editor, you should be familiar with it, and many people have chosen it in the construction, but the editor found that everyone does not know its construction. How to operate the steps specifically, the editor has organized the following articles, and interested friends can read it together!

1. Remove debris and debris from the surface of the base layer.

2. Lay a layer of polyethylene film, and the polyethylene film is lapped with self-adhesive tape.

3. Lay extruded foam insulation board, and use special fasteners to fix the insulation board.

4. Pre-laid PVC waterproofing membrane: Arrange the PVC waterproofing membrane on the thermal insulation layer according to the elastic wire control position, the laying direction of the membrane is perpendicular to the corrugation direction of the profiled steel plate, and arrange the naturally loose membrane on the thermal insulation layer according to the outline .The coil should be kept flat and straight, not twisted, the overlap width is 120mm, and appropriate cutting should be done.

5. Fixing of PVC waterproofing membrane: Fasteners and gaskets fix the membrane at a distance of 30mm from the edge of the membrane as indicated by the marking line.

6. Coiled material lap: One pair of coiled material is lapped on another piece of coiled material, so that the fasteners and gaskets are covered under the waterproof layer. Use a welding machine to weld each lapped edge, such as double welds Inflatable testing is required.

7. Node processing: Cut the coil sheet suitable for the corresponding node, and use a hand-held welding gun to weld the sheet on the large-surface coil.

8. The end of the PVC waterproofing membrane: the end part is fixed with a bead and sealed with a sealant.