Start with what you actually observed. Photographs, measurements, labels and accessible conditions are stronger than conclusions without supporting documentation.
State limitations. Concealed areas, inaccessible flues, weather, roof access, missing labels and scope restrictions can materially affect what an inspection can establish.
Use precise language: observed, could not verify, appears consistent with, requires further evaluation. Reserve definitive conclusions for conditions the evidence supports.
Use the official source
VerifySweep summarizes concepts for professional education. It does not reproduce or replace copyrighted code or standard text. Consult the official publication for exact requirements.
Educational content only. Codes, standards, listings, manufacturer instructions and local amendments can change which requirement applies to a specific installation.