Asbestos shows up in commercial buildings more often than a lot of property owners expect. While it’s especially prevalent in structures built before the 1980s, asbestos can still be found in more modern structures as well due to its safety properties. Historically used for strength, fire resistance, and insulation across countless building systems, which is why it still comes up so much during renovation and demolition projects today.
Even though asbestos isn’t widely used anymore, older commercial properties can still contain multiple types embedded in insulation, flooring systems, roofing materials, and mechanical components. Understanding what those types are and where they tend to appear is key to staying compliant with Colorado regulations before any construction work begins.
If you think your commercial property might be in need of asbestos abatement services, read on.
The Six Types of Asbestos
Historically, asbestos has been categorized into six mineral types. Each variant was used differently depending on its specific heat resistance, flexibility, and availability.
- Chrysotile (White Asbestos): The most widely used form in commercial buildings, commonly found in roofing, drywall compounds, vinyl flooring, ceiling tiles, and pipe insulation.
- Amosite (Brown Asbestos): Frequently used in pipe insulation, cement sheets, ceiling tiles, and thermal insulation in industrial and commercial systems.
- Crocidolite (Blue Asbestos): Used in high-risk applications like spray-on fireproofing, cement products, and steam pipe insulation due to its heat resistance.
- Tremolite: Not typically used intentionally in construction materials but often found as a contaminant in talc, vermiculite insulation, and some plaster or insulation products.
- Anthophyllite: Rare in commercial use but occasionally found in insulation materials, roofing products, cement, and talc-based compounds.
- Actinolite: Present in some older insulation systems, drywall products, roofing materials, and textured coatings, sometimes as a contaminant in other mineral-based materials.
While each type has different physical properties, Colorado regulations treat all asbestos-containing materials the same once they are identified in a commercial structure.
Where Asbestos Is Most Commonly Found in Older Commercial Buildings
Asbestos distribution in commercial buildings is often tied to how the structure was built and maintained over time. It was not limited to one system or material, which is why inspections are required before most renovation or demolition work under Colorado law.
In commercial environments, asbestos is most commonly found in:
Mechanical and Utility Systems
Pipe insulation, boiler wrap, duct insulation, and HVAC system components were some of the most heavily asbestos-dependent materials in commercial construction. These systems are especially important during renovation because they are frequently disturbed during upgrades or replacements.
Under Colorado demolition regulations, any removal of load-bearing systems or structural components can trigger asbestos requirements even if the work is not a full building teardown. Mechanical systems often fall into this category when they are integrated into structural elements or require partial demolition to access.
Flooring Systems and Adhesives
Vinyl asbestos tile and the black mastic adhesives used to install flooring are extremely common in older commercial spaces like offices, schools, and retail buildings. These materials are often intact but become hazardous during flooring replacement or subfloor preparation.
During renovation, removal of flooring may fall under regulated asbestos activity if materials exceed trigger levels or risk becoming friable during removal. In demolition scenarios, flooring systems cannot be crushed, pulverized, or recycled if asbestos-containing materials are present, and must be removed in a controlled manner before structural teardown proceeds.
Roofing and Exterior Assemblies
Roofing felt, shingles, tar systems, and cement panels often contained asbestos for weather resistance and durability. These materials are especially relevant during partial demolition or exterior renovation work.
Colorado demolition rules require that asbestos-containing materials be removed before activities like burning, implosion, or full structural destruction. Roofing systems are often included in this requirement because they can release fibers when shattered or mechanically broken during demolition.
Walls, Ceilings, and Fireproofing Materials
Ceiling tiles, textured coatings, joint compounds, and spray-applied fireproofing were widely used in commercial interiors. These materials are often hidden behind finishes, which makes them a major factor in inspection requirements before renovation begins.
When demolition involves removing interior structural components or load-bearing sections, asbestos in wall and ceiling systems must be identified and handled under regulated procedures if thresholds are exceeded. Even smaller renovation projects can trigger compliance if materials are disturbed during cutting, scraping, or removal.
Cement, Siding, and Structural Panels
Asbestos cement products were widely used in siding, exterior panels, and some structural components due to their strength and fire resistance. These materials are particularly important in demolition projects because they often break apart during mechanical removal.
Colorado regulations specifically prohibit certain destructive practices, such as crushing or pulverizing asbestos-containing materials during demolition. This means cement-based asbestos products must be carefully handled and removed before heavy demolition equipment is used.
Why Asbestos Location Matters in Colorado Projects
In Colorado, asbestos compliance is not just about whether material exists, but how and when it will be disturbed. That distinction is what drives inspection, permitting, and notification requirements before work begins.
For example, under Colorado Air Quality Control Commission Regulation 8, Part B, any renovation or demolition that disturbs regulated asbestos-containing materials requires proper inspection, potential abatement by a certified contractor, and a ten working-day notification period before work can begin.
Even if asbestos is not visibly present, demolition work still requires formal notification and inspection because hidden materials can be uncovered once structural components are removed.
Final Takeaway
Commercial buildings are layered systems, and asbestos was used across nearly all of them at some point in construction history. From insulation wrapped around pipes to flooring adhesives beneath finished surfaces, it can appear in unexpected places.
That’s why Colorado regulations focus heavily on inspection, notification, and controlled removal before renovation or demolition begins. Understanding where asbestos is likely to be found helps project teams plan ahead, stay compliant, and avoid costly delays once work is underway.
If you own a commercial building in need of asbestos abatement, look no further than Mile High Environmental Services. At MHES, we specialize in removing residential, commercial and other complex asbestos removal projects. Get in touch with us today to start your consultation.
Commercial Asbestos FAQs
What are the most common types of asbestos in commercial buildings?
The most common types found in commercial buildings are chrysotile, amosite, and crocidolite. Chrysotile was used most widely across roofing, flooring, and insulation materials, while amosite and crocidolite were often used in pipe insulation and fireproofing systems. The remaining types are less common but may still appear as contaminants in older building materials.
Where is asbestos most likely to be found in a commercial property?
Asbestos is most commonly found in pipe insulation, flooring adhesives, ceiling tiles, roofing materials, drywall compounds, and cement products. Mechanical systems and interior finishes are especially common sources in older buildings. These areas are frequently impacted during renovation or demolition, which is why inspection is required before work begins.
Why is asbestos so common in older commercial buildings?
Asbestos was widely used because it was inexpensive, durable, and highly resistant to heat and fire. It was incorporated into nearly every major building system, including structural, mechanical, and finishing materials. Buildings constructed before the 1980s are most likely to contain multiple asbestos-containing products.
Do all asbestos types require removal during demolition?
Yes, if asbestos-containing materials exceed regulatory trigger levels or may become friable, they must be removed before demolition proceeds. Colorado regulations also require notification and a waiting period before work begins. In some cases, even non-friable materials must be removed if demolition methods could disturb them.
Can asbestos stay in place during commercial renovation?
Sometimes asbestos can remain in place if it is non-friable and will not be disturbed during renovation. However, if there is any chance it will be cut, broken, or exposed, regulated removal procedures apply. A certified asbestos inspection is required to determine the proper approach before work starts.
