Why Asbestos Is Still a Concern in Calgary Homes
Even though asbestos has been banned for decades, it remains present in many Calgary properties built before the 1990s. That is to say, its presence isn’t always obvious. You may not notice anything unusual until a renovation stirs up hidden material.
Therefore, understanding when and where asbestos might exist in your home is key to making safe decisions. Whether you’re buying an older property, renovating a basement, or planning demolition, knowing what to look for can save you serious health risks and legal trouble.
Common Places Asbestos Was Used in Calgary Construction
Most older homes in Calgary were built with materials that contained asbestos because it was cheap, strong, and heat-resistant. For instance, it was mixed into plaster, insulation, and even flooring tiles.
However, it’s not always easy to spot these materials just by looking. To clarify, asbestos was often hidden under layers of newer renovations or painted over. Here are some of the most likely spots where asbestos could still be hiding:
1. Attic Insulation
Vermiculite insulation is a major red flag. It looks like small, lightweight pebbles, often shiny or grey-brown in colour. Vermiculite from a specific mine in the US was contaminated with asbestos and widely sold in Canada.
In other words, if you see this type of insulation in your attic and your home was built before the mid-1980s, it’s worth having it tested. Most importantly, never disturb it yourself. Moving it around can release harmful fibres into the air.
2. Drywall and Joint Compound
In homes built before 1990, drywall sheets and especially the joint compound used to seal the seams may contain asbestos. You won’t see the fibres, but sanding or demolishing these areas could be hazardous.
Moreover, contractors working on ceilings and walls should always assess the risk before beginning any project. If you’re unsure about the age of the wall finish, assume caution and consider asbestos removal in Calgary as a first step.
3. Floor Tiles and Adhesives
Some vinyl floor tiles from the 1960s to the 1980s contain asbestos, especially 9×9 inch tiles. Likewise, the glue used to bond them to the subfloor might also be contaminated.
While the tiles might seem harmless when undisturbed, breaking, sanding, or removing them without proper protection can release fibres. If you’re planning to refinish or replace old flooring, it’s wise to test before doing anything.
Signs Your Property Might Contain Asbestos
Spotting asbestos isn’t just about identifying materials. Often, it’s about understanding the timeline of the building and what types of upgrades may have taken place. That is to say, some signs are indirect but still worth paying attention to.
1. Age of the Building
If your property was built before 1990, there’s a decent chance it contains asbestos in some form. Further, if it hasn’t undergone major renovations since then, it may still have original hazardous materials in place.
On the other hand, if renovations were done after 1990, but before 2010, it’s possible that some asbestos-containing materials were disturbed without proper removal procedures. That’s why documentation matters.
2. Lack of Renovation Records
If you’re not sure what’s been done to the property, this can be a clue in itself. For example, if you’ve bought an older home and the seller didn’t provide documentation on past asbestos testing or removal, assume nothing.
In these cases, it’s safer to proceed as though asbestos might be present. Before starting a major project, get in touch with a professional to discuss testing options.
3. Visible Damage to Old Materials
Cracked ceiling tiles, broken drywall, and aging duct tape around heating vents may all be signs that older materials are degrading. This becomes more concerning if they date from an era when asbestos was common.
Consequently, worn or crumbling materials pose a greater risk of fibre release. You may not feel symptoms right away, but long-term exposure—even at low levels—can be harmful.
Practical Steps for Calgary Homeowners
Even if you suspect your property might contain asbestos, you don’t need to panic. Most importantly, asbestos is only dangerous when disturbed. That said, it’s crucial to handle any concerns methodically.
Step 1: Do Not Disturb Suspect Materials
Above all, avoid touching, cutting, drilling, or removing anything you think might contain asbestos. Once fibres are airborne, they can stay suspended for hours and settle deep in the lungs if inhaled.
Instead, mark the area and make a plan to assess it properly. If you have contractors coming in, let them know what you suspect so they can use appropriate precautions.
Step 2: Arrange for Professional Testing
Asbestos testing is usually fast, affordable, and accurate. A small sample is taken in a safe manner and sent to a lab for analysis. Similarly, some testing companies offer rush service if you’re on a renovation timeline.
Testing provides peace of mind. It also helps you avoid costly mistakes down the road if you remove materials without knowing the risks. In some cases, it’s the only way to confirm the presence of asbestos.
Step 3: Follow Removal Protocols if Needed
If asbestos is confirmed, the next step is removal. This is a job best left to trained professionals who follow strict procedures to contain, clean, and dispose of the material safely.
After that, a final clearance test is done to ensure your space is safe again. Although removal can seem inconvenient, it’s a one-time process that protects your health and property value.
Asbestos in Less Obvious Places
Some areas don’t get mentioned often, but they still pose a risk. For example, old hot water tanks and boilers may be wrapped in asbestos blankets or covered with old pipe insulation.
Similarly, window putty and some older roofing shingles contain asbestos. While these are usually outside the main living space, repairs can release fibres if you’re not prepared.
If your home has original windows, roofing, or mechanical systems from before 1990, it’s smart to factor in testing during any maintenance.
A Hidden Danger During DIY Renovations
Renovation TV shows make it look easy to tear down a wall or rip out a ceiling. But in real life, older Calgary homes often hide risks behind the surface. Therefore, doing demo without asbestos awareness can backfire quickly.
Even one day of exposure during a DIY project can release thousands of fibres. That exposure doesn’t cause symptoms right away. In fact, diseases from asbestos often develop years or decades later.
To avoid this, plan ahead. Knowing what to test and when to call in help can make a big difference in your home’s safety and your long-term health.
Legal and Insurance Considerations
In Calgary, property owners are responsible for ensuring asbestos is managed safely. If someone is exposed during construction or renovation, you could be held liable. Likewise, some insurance policies require disclosure before coverage.
Therefore, identifying asbestos early protects you legally and financially. When in doubt, consult documentation and request a professional evaluation before starting work.
The Role of a Certified Asbestos Professional
A trained professional does more than just removal. To clarify, they understand building materials, historical construction techniques, and local safety codes. This allows them to spot problems others might miss.
They also have access to protective gear, air filtration systems, and proper disposal channels. Most importantly, their goal is to leave your home cleaner and safer than it was before.
If you’re unsure how to start, reach out for guidance. Even a brief conversation can point you in the right direction and help you avoid common mistakes.
FAQ
What year did homes in Calgary stop using asbestos?
Most homes built before 1990 have a higher chance of containing asbestos. After 1990, its use declined significantly, but some materials may have remained in circulation for a few years.
Can I test for asbestos myself?
Technically yes, but it’s not recommended. Improper sampling can release fibres. It’s safer to hire a trained professional to do it under controlled conditions.
Is it dangerous to live in a house with asbestos?
Asbestos is only dangerous when disturbed. If it’s sealed and in good condition, it may not pose an immediate risk. However, any renovation or damage can change that.
Do I need to remove all asbestos from my property?
Not necessarily. If the material is intact and unlikely to be disturbed, it can sometimes be left in place with monitoring. Removal is advised when damage or changes are expected.
What should I do if I find asbestos during a renovation?
Stop work immediately and contact a qualified asbestos professional. They’ll assess the situation, test the material, and create a safe plan for removal if needed.