How To Weld Pvc Roofing

Immediately begin moving the machine along the lap to prevent scorching of the membrane.

How to weld pvc roofing.

Lift the overlapping membrane sheet and insert the blower nozzle between the overlap. However the standard pvc roofing membrane is about 50 mils. Pvc is relatively light and can be purchased in milages between 36 and 90 mils as mentioned before a mil is 0 001 of an inch. Weld the 18 457 mm pieces together and then allow the membrane a few minutes to cool.

The hot air welding of all seams and flashing is used on all pvc roof installations. Welding operation automatic welders. The welds are tested by pulling the weld apart by hand. This video shows the process of flat roof installation of an ib pvc flat roofing membrane and hot air welding the seams using leister hand welder and hand roller.

45 mils equal 0 045 inches. Hot air welding makes material overlaps last a lot longer than those on epdm rubber roofs and other torch applied or glued flat roof systems. Position the automatic hot air welding machine with the pressure wheel approximately 3mm over the weld edge to ensure a sealed edge. Cut a 1 25 mm wide strip across the welded material.

Good welds require a lot of force but it s the way the weld comes apart that s the key.