Minimum low temperature for dual hot-wedge seaming

From the GMA Techline

Does the Geosynthetic Research Institute (GRI) offer any guidance on the minimum allowable ambient temperature to perform double-track fusion welds of HDPE and LLDPE geomembranes?

(Jonathan | South Carolina)

Reply: We have GRI-GM9 Standard Practice “Cold Weather Seaming of Geomembranes” and it allows for seaming down to -15 C (5 F).

Bob Koerner | GMA Techline