Why do old wood windows fail lead inspections?

Old wood windows usually fail a lead inspection for one of three reasons: failing paint, rubbing, or slamming. Lead dust comes from paint that is breaking down or being ground off every time the window moves.

Where inspectors find it

  • Jambs, stops, and parting strips: the sash rubs these painted surfaces as it slides up and down.
  • Sill and stool: the sash hits these when it closes, and the impact chips the paint.
  • Sash: loose glazing and peeling paint.
  • Sash cord and pulleys: often painted over.
  • Weight pockets: lead dust collects inside.
  • Old sash locks and stays that drag on a painted jamb.

What fixes each one

  • Failing paint: strip and refinish, or seal intact paint with a non-lead coat.
  • Rubbing: tune the window, strip the rubbing surfaces, or cover them with jamb liners (metal window weatherstripping).
  • Slamming: strip and refinish the sill, or add a metal impact strip.
  • Painted cord and pulleys: replace the cord and strip the pulleys.
  • Weight pockets: vacuum with a HEPA vacuum and seal.

Intact, smooth paint that doesn't rub or get hit is not the problem. Damaged paint is.

Classic Door restores historic windows to fix these hazards while keeping the original sash. See how a lead-safe window restoration works or call (401) 266-4475.

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