How To Weld Tpo Roofing

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How to weld tpo roofing. Roofing calculator roofers generally use one of two methods to adhere a tpo membrane to a roof. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. While tpo is easy to weld let s take a look at some best welding practices. For the pre weld you are going to start by placing your nozzle between the two tpo membranes at a 90 degree angle.

The nozzle has a slim end which opens up to a wider fitting. Tpo comes in a variety of sizes make sure you have a size that is big enough to cover the entire top of the wall. Heat welded seams provide superior strength. Standards csa b272 and iapmo ps 64.

Make sure equipment is properly set up and in working order. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope roofing system. If you do not have any walls then simply cut along the edges of the roof and weld down the edges to the tpo coated metal. Menzies 5 skin tpo direct weld for fast installation on tpo roofing systems.

How to correctly do heat welding of tpo on air extractor pipe salient features of the steinel hot air tool. Tpo roofing comes in 6 to 8 foot sheets that you lay out side by side and weld together. You will likely want to place the nozzle under the top layer just past that angle change on the pre weld see photo to the right. Installers are very important in ensuring welds are done well both in the overlaps and in the flashings.

Start by rolling out the tpo along the walls and cutting into sections where necessary to keep it straight.