Here’s an example scenario: a facilities manager at an office building in the Augusta area was dealing with a routine plumbing repair. A hot water line in the mechanical room had developed a slow leak, and the plumber wanted to cut out a three-foot section of pipe to replace it. Before the plumber arrived, the facilities manager noticed the pipe was wrapped in a thick, chalky white insulation that was flaking at the joints.
He made the right call and stopped the job. The material was tested before any work proceeded. It came back as chrysotile asbestos, which is the most common type of asbestos (chrysotile is white asbestos, one of six regulated asbestos minerals). Had that plumber cut into the line without precautions, he would have released fibers throughout the mechanical room and into the return air for the whole building.
Pipe insulation is one of the most common asbestos sources in commercial buildings built before about 1980, and one of the most likely to be disturbed by routine maintenance. If you own or manage an older commercial property in the CSRA, this is material you need to know about before a work order turns into an exposure incident.
Why Pipe Insulation Was So Often Made With Asbestos
Asbestos had properties that made it almost perfect for insulating steam and hot water pipes. It was cheap, it did not burn, it resisted moisture, and it could be molded into preformed sections or applied as a wet paste and wrapped with cloth. Between roughly 1920 and the late 1970s, asbestos pipe insulation was installed in millions of buildings across the United States, including essentially every commercial structure built with central steam heat or hot water distribution.
The EPA’s general asbestos ban actions in 1989 cut back new installations, but existing insulation was grandfathered in. Removal was not required as long as the material was in good condition and undisturbed. That means decades of older buildings in Augusta and across Georgia still have asbestos pipe insulation in place today, often entirely original to the building.
The OSHA regulations for asbestos in construction (29 CFR 1926.1101) treat asbestos pipe insulation as “presumed asbestos-containing material” (PACM) in any building built before 1981, unless testing proves otherwise. Under federal law, a contractor working on that pipe insulation in a pre-1981 building must assume it contains asbestos until laboratory testing says otherwise.
What Asbestos Pipe Insulation Looks Like
Asbestos pipe insulation takes several common forms, and recognizing them is the first step to not disturbing them.
Corrugated or Air-Cell Insulation
This is the white, accordion-style corrugated material wrapped around pipes in older buildings. It was usually covered with a thin cloth or paper jacket that has often deteriorated or been torn off over the decades, exposing the corrugated layer. When you see white, ridged insulation that looks like flattened cardboard wrapped around a pipe, treat it as asbestos until tested.
Preformed Block or Sectional Insulation
Molded half-cylinder sections that fit around straight pipe runs, often with metal bands or wire securing them. The material is typically chalky, crumbly, and light gray or white. Joints between sections were usually sealed with asbestos-containing cement or tape.
Elbow and Fitting Insulation (Mudded Fittings)
Elbows, tees, and valve bodies were usually insulated with a wet paste of asbestos and cement called mud, wrapped with cloth or canvas. These “mud packs” are especially fiber-rich and often in poor condition because they are harder to protect and more prone to damage during maintenance. Any lumpy, cloth-wrapped insulation at a pipe joint in a pre-1981 building should be presumed to contain asbestos.
Paper or Felt Wrap
A thinner fiber-paper wrap was sometimes used on cold water lines or as a secondary insulation layer. It looks and feels like rough paper. In older mechanical rooms, it crumbles easily.
Where Commercial Buildings Tend to Have It
Certain locations in older commercial buildings are almost guaranteed to have asbestos pipe insulation unless the building has been through a documented abatement:
- Mechanical rooms and boiler rooms — steam and hot water distribution pipes, boiler breechings, heat exchangers
- Above drop ceilings in corridors and offices — horizontal supply and return lines running throughout the building
- Kitchens and cafeterias — hot water supply, dish machine supply lines, steam lines to cooking equipment
- Behind access panels in bathrooms and janitor closets — riser pipes carrying hot water between floors
- Unconditioned spaces like basements, parking levels, and utility tunnels — where the insulation has often been damaged by physical contact, moisture, and rodents
Damage makes the risk worse. Asbestos is only dangerous when fibers become airborne, which happens when the material is disturbed. Crumbling, torn, or water-damaged insulation is releasing fibers passively. The CDC’s Agency for Toxic Substances and Disease Registry documents the link between asbestos fiber exposure and multiple cancers including lung cancer, mesothelioma, and laryngeal cancer.
What Triggers Contractor Exposure
Almost any work touching the pipes triggers potential disturbance. In older commercial buildings, these routine jobs are the most common exposure scenarios:
- Plumbing repairs that cut, grind, or unbolt insulated pipe sections
- HVAC work that disturbs insulation on nearby chilled water or steam lines
- Electrical work that requires drilling or running new conduit through insulated pipe bays
- Demolition or renovation of partition walls, drop ceilings, or mechanical chases
- Roof work that involves insulated pipe penetrations or roof-mounted equipment
- Simply bumping into deteriorated insulation while moving equipment through a mechanical room
Any of these without an asbestos survey and proper controls is a violation of both federal OSHA regulations and the EPA’s NESHAP rules (40 CFR 61, Subpart M), which require notification and licensed abatement for regulated asbestos-containing materials disturbed in renovation or demolition.
The Survey Requirement Most Property Managers Don’t Know About
Under OSHA, the owner of a building constructed before 1981 must notify contractors and tenants about the presence or presumed presence of asbestos-containing materials in the building. This obligation does not go away because the owner personally does not know the materials are there. Lack of a survey does not waive the presumption.
For commercial buildings in Georgia, the practical implication is this: if your building was built before 1981 and you have not done an AHERA-style survey (Asbestos Hazard Emergency Response Act, the standard for commercial and school asbestos surveys), you should assume pipe insulation is asbestos-containing and treat it accordingly. That means:
- Labeling known or presumed ACM (asbestos-containing materials) in mechanical rooms and above drop ceilings
- Providing survey results to every contractor who bids on work in the building
- Prohibiting non-trained workers from disturbing presumed ACM
- Maintaining an operations and maintenance (O&M) plan for in-place asbestos
A current asbestos survey costs far less than a single exposure incident and gives you the documentation you need to manage contractors appropriately.
Your Next Steps
- If your commercial property was built before 1981 and does not have a current asbestos survey, get one done before your next scheduled maintenance work.
- If your facilities or maintenance team is already aware of asbestos pipe insulation in the building, confirm they know exactly where it is, label those areas, and keep the documentation accessible to contractors.
- If a contractor ever reports that they disturbed suspect insulation during a job, stop work, isolate the area, and test the material before anyone else enters. Exposure can continue after the disturbance stops, because fibers stay airborne for hours.
If you manage an older commercial property in the CSRA and want to understand what you actually have in your building before the next work order comes in, the EnviroPro 360 team can help you plan a survey and manage known materials safely. Reach out any time.
