V16 — system diagnostic

Rodents, bats and building exclusion

Find entry points and repair the envelope without trapping animals in cavities or creating a health risk.

Checked: 2026-08-22

VERT / GREEN

Inspect thresholds, foundations, soffits, vents and penetrations; remove easy food and shelter.

JAUNE / YELLOW

Successful exclusion depends on species, season and nest/colony location.

ROUGE / RED

Bat contact, maternity colony, inaccessible animal or major contamination: do not improvise.

Pre-decision triage

Useful tools / data

  • Light and exterior inspection
  • Photos of evidence and entry points
  • Appropriate exclusion mesh/materials

What the professional checks

  • Identify species and activity period
  • Plan one-way exits where appropriate
  • Decontaminate and repair envelope without blocking ventilation