Seamers run wedge welders and extrusion guns, make trial welds, fill out seam logs and fix defects. Experienced seamers hold industry certifications earned by logging large amounts of seaming, and master seamers are trusted to run crews. A seamer's initials go on every seam and patch, so poor work can be traced to its maker.
Put your best seamer on the boots and the sump, the new guy can run the floor seams with the wedge.
Also heard as
- welder
- welding tech
Related terms
Wedge
Installer shorthand for the hot wedge welder, or for the heated wedge inside it.
Gun
Installer slang for the hand-held extrusion welder used on patches, boots and detail welds.
Trial weld
Short test seam made on scrap geomembrane before production welding to prove the machine settings and the operator.
CQA
Construction quality assurance: independent monitoring and testing that a geosynthetic system was built as designed.