Designing the Right Single Ply Roofing System

Tall Upstands

For upstands with a height greater than 500mm an intermediate linear horizontal fixing is required, to be repeated every 500mm.

Possible detailing:  

  • Strip of PVC laminated steel fixed to the wall (see below),

  • Perforated metal rail fixed through the membrane covered and sealed by a 100mm + width of Monarplan membrane strip,

  • Lower flashing strip is fixed to wall by a perforated rail or screws and washers then the upper strip is overlapped and welded to the lower flashing,
  • Fully adhered.  

Tall Upstands - Monarplan GF Adhered Single Ply Roofing System

Key
  1. Monarplan FM single ply roofing membrane.
  2. Insulation.
  3. Vapour control layer.
  4. Substrate.
  5. Coated metal.
  6. Hot air weld min. 40mm.
  7. Mechanical fixing bar.

There are many more alternative methods of detailing upstands.
Contact Icopal’s Technical Services Department for detailed drawings or more information.

 

Video demonstrating a typical installation of a tall upstand

 

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