Construction Products, Windows, Doors & Fenestration worked example

IGU Seal Failure Exposure at 21% expected seal failure occurrence share: a worked example

This scenario runs the igu seal failure exposure calculation on the strong side: 21% expected seal failure occurrence share, with every other input held at its documented default. budgeting warranty or quality exposure for sealed glass units

The inputs for this scenario

  • IGUs at risk of seal failure: 680 IGUs (unchanged)
  • Average seal failure claim cost: 165 $ / IGU (unchanged)
  • Expected seal failure occurrence share: 21 % (raised for this scenario; the documented default is 18)
  • Fixed seal failure campaign cost: 12,500 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable seal failure exposure = IGUs at risk of seal failure × average seal failure claim cost × expected seal failure occurrence share) to the inputs above produces each figure below.
  • At this operating point the engine returns 36,062 $ for total igu seal failure exposure, the number this scenario is built around.
  • At this operating point the engine returns 53.03 $ / piece for expected exposure per at-risk igu.
  • At this operating point the engine returns 23,562 $ for variable seal failure exposure.
  • At this operating point the engine returns 12,500 $ for fixed seal failure campaign cost.

How this compares with the baseline

  • Against the tool's baseline example, where expected seal failure occurrence share sits at 18% and the headline result is 32,696 $, this scenario comes in 10.29% above the baseline at 36,062 $.
  • Use it when a defective spacer, sealant, or desiccant lot is identified, or when field fog claims start clustering and you need to reserve dollars or justify a proactive reglaze. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • total IGU seal failure exposure: 36,062 $ (headline result)
  • expected exposure per at-risk IGU: 53.03 $ / piece
  • variable seal failure exposure: 23,562 $
  • fixed seal failure campaign cost: 12,500 $

Run it with your numbers

  • Every input above is editable in the live IGU Seal Failure Exposure calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.