How To Weld Pvc Roofing

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

How to weld pvc roofing.

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. Lift the overlapping membrane sheet and insert the blower nozzle between the overlap. Welding speed is about 2 5 3 feet.

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

However the standard pvc roofing membrane is about 50 mils. Though the primary color of a pvc roofing membrane is white it can come in a variety of colors and hues. Welding operation automatic welders. The welds are tested by pulling the weld apart by hand.

Pvc the material on either side of the weld has a dull finish or there is brown discolouration hand welding the welding rod is completely flattened or smeared extrusion welding when probing the material in the preheated zone ahead of the welder there is significantly more than 0 5mm of penetration.