EXTERIOR THRESHOLD CONSIDERATIONS

Thermal Breaks
  • Provide a thermal break between the interior slab and the exterior sidewalk/slab
  • 1/2" expansion Joint is not considered a Thermal Break
  • If a Thermal Break is included at the Threshold, the Threshold must be wide enough to span the gap.

Waterproofing
  • The mastic used to set the Threshold must be compatible with the rigid insulation
  • Cold fluid applied waterproofing to be applied in below grade conditions