Vertical Instability

Vertical instability is rocking floor panels which do not rest securely on the pedestal head or grid system. Panels move up and down when weight is applied.

    Causes:
  • Missing gaskets
  • Missing stringers
  • Missing pedestal pads
  • Dirt/Debris on pedestal/grid caused by lateral instability
  • Subfloor dirt/particulates forced on grid by air conditioning
  • Removing stringers, not replacing properly
  • Removing panels, not replacing properly
  • Swollen woodcore panels
  • Warped panels
  • Moving equipment on floor too soon after installation
  • Tipped pedestal

 

    Consequences:
  • Reduction in plenum pressure from air conditioning
  • Tripping hazard for personnel
  • Edge trim is exposed, subject to breaking (If edge trim is broken, laminate surface is exposed to chipping)
  • Dirt/Debris drops into subfloor
  • Subfloor dirt/particulates forced on grid by air conditioning
  • Permanent panel damage