FUNDAMENTALS OF REGULAR CHIMNEY INSPECTION CLASS II

What is a Class II inspection?

Class II chimney inspections are inspections that are done hands with a man on the chimney testing the construction of the chimney with hand tool and other non-destructive equipment. These inspections are done by experienced professionals who have performed this kind of work on a regular basis for at least 5 years.

What is involved in a Class II inspection?

The following topics must be addressed in a Class II inspection:

  • Introduction
  • Terminology
  • The purpose of and subject of inspections
  • Who is the qualified person
  • Qualified Engineering review
  • What is not the qualified person
  • What is being inspected
  • Preparing for the inspection
  • Non-Destructive inspection tooling
  • Destructive inspection tooling
  • Class of Inspection
  • Class 1 Inspections
  • Class 2 Inspections
  • Class 3 Inspections
  • Class 3 inspections, Monitoring Chimney Conditions
  • Class 3 inspections, Other possible indicators in of this class of inspection
  • Preparing the Bid Request Documents
  • Inspection sample outline
  • Inspection List of what to inspect

An example of one of these topics on one of these topics is Column Mapping of cracks and spalling seen below.

COLUMN MAP OF CRACKS AND SPALLING

  1. Total linear feet of hairline cracks _____________ .
  2. Total linear feet of cracks under 1/8 _____________ .
  3. Total linear feet of cracks under 3/8 _____________ .
  4. Total linear feet of cracks over 3/8 _____________ .
  5. Estimated Crew Repair Time 1. 2. 3. 4. above.

COLUMN ESTIMATE FOR SPALLING WORK

  1. Total number of serious spalled areas ____________.
  2. Total number of minor spalled areas ______________.
  3. Total number of Spalls with exposed rebar ___________.
  4. Estimated Crew Repair Time 1. 2. 3. direcatly above.

COLUMN MAP OF SPALLING AND CRACKS

  1. Map for Exterior Cracks and Spllling N, W, S, E.
  2. Map of Internal Cracks and Spalling N, W, S, E.
  3. Map of liner Cracks and Spalling N, W, S, E.