Pvc Roofing Welding

This hot air welder lst wp1 is of advanced heating function it is powerful stable and easy to be operated which is suitable for pvc tpo cpe and other polymer waterproofing membrane roof constructions.

Pvc roofing welding.

Pvc membrane and flashings are different than epdm and asphalt flat roof produ. About our roofing industry welding machines are you looking for pvc membrane welding machines that are not only reliable but also easy to use so that you can take pride in your roofing craft. Likewise in hot weather you need to lower the welding temperature accordingly. A change of colour or the formation of ashes on the nozzle or the welding zone indicates that the welding temperature is too high.

This ensures superior seam strength and makes the membrane resistant to leaks and wind blow off. All roof products deteriorate over time and pvc has a tendency to shrink pulling the seams lifting corners and potentially causing leaks. A pvc roofing membrane can be installed in three different ways. When there is a risk of wrinkles or sliding of strips and sheets it is advisable to provisionally stitch spot weld or pre weld the two sheets every 20 30 cm.

Older pvc roofs in cold weather are prone to shattering. The weld must have a minimum width of 40mm. Pvc membrane is used new and re roofing applications. Pvc roofing membrane generally contain a high molecular weight solids phase flexibility agent that will not migrate from the sheet and gives good physical properties appearance and color after installation and years of exposure to the elements.

While cold weather doesn t delay installation you can even weld pvc in the rain you do have to adjust the welding temperature upward to compensate.