When asbestos is discovered in a building we assess the best way to manage it. Sometimes complete removal poses more risk than a targeted approach. Therefore containment can offer a safe and efficient alternative for handling asbestos materials in occupied spaces. We at Envirotech, an abatement & remediation company in Calgary, guide clients through each step of containment planning and execution so that occupants can continue their activities with confidence.
Understanding Asbestos Containment
What Containment Entails
Asbestos containment involves isolating materials that could release harmful fibers so they cannot migrate into occupied areas. In other words we seal off surfaces or enclose them behind durable barriers to prevent disturbance. For example we might apply specialized encapsulants over crumbling insulation or install rigid panels around sections of piping. Above all our goal is to keep asbestos fibers locked away rather than inhaled by workers or residents. Meanwhile clear signage and locked access points reinforce the integrity of the barrier.
Why Containment Differs from Removal
Containment and removal tackle asbestos risk in distinct ways. Removal means extracting all affected materials and disposing of them off site. However containment leaves the materials in place behind an engineered barrier. In that sense containment can be less invasive and allow for continued building use. That is to say removal often requires vacating areas for several days while demolition occurs. Conversely containment can be completed more quickly while still reducing exposure risk. As a result it often serves as a practical interim solution.
Key Situations for Choosing Containment
Low Disturbance Environments
Containment makes sense when the asbestos resides in areas with minimal activity. For instance a ceiling tile in a rarely accessed attic room can remain sealed rather than removed. In addition if renovation is not planned for several years containment can provide reliable protection until a full removal project is viable. Likewise spaces such as crawl spaces or storage closets can be contained to limit fiber migration. Above all we recommend evaluating how often a space is used when deciding on this approach.
Historic or Occupied Spaces
In the same vein older heritage structures often contain unique materials we want to preserve. Complete removal could damage decorative plaster or original millwork. Consequently containment enables us to maintain architectural integrity. Further occupied buildings like schools or medical clinics cannot tolerate lengthy closures. Therefore containment can be scheduled during off hours and remain in place until a full project is practical. In short containment balances preservation and safety for sensitive environments.
Best Practices for Effective Containment
Establishing Secure Barriers
To start we build robust barriers around asbestos containing materials. That means using fire rated panels and sealed joints rather than basic plastic sheeting. For instance we might install metal channels to anchor containment walls and then paint them with specialized sealant. Moreover we ensure floor to ceiling coverage and allow for inspection ports. Most importantly all seams receive multiple coats of encapsulant to create an airtight seal that stands up to humidity and temperature shifts.
Monitoring and Maintenance
Containment is not a one and done effort. Instead it requires regular checks to confirm integrity. In other words we schedule visual inspections on a monthly basis and log any wear or damage. Above all we focus on areas exposed to vibration or foot traffic since those are most prone to seam failure. In addition we train staff to report scratches or punctures immediately so repairs can be made before fibers escape. That ongoing attention keeps containment reliable over its full service life.
Air Quality Sampling
To clarify we often pair containment with targeted air monitoring to verify protection levels. For example we place particle counters just outside the barrier to detect any unintentional fiber release. Subsequently specialized lab analysis confirms airborne asbestos remains below safe thresholds. In addition we may conduct clearance sampling after initial installation and then annually. As a result property managers gain quantitative data on containment performance rather than relying solely on visual checks. For detailed protocols we refer to our asbestos abatement in Calgary guide to ensure every step meets regulatory standards.
Common Mistakes to Avoid
Containment projects can fail when basic steps are overlooked. First many teams skip the task of isolating HVAC systems. Consequently air pressure changes can pull fibers through containment seams and spread them throughout the building. In addition using substandard encapsulant or applying only a single coat often leads to early breakdown of the barrier. Moreover failing to secure access points with lockable doors invites accidental breaches by untrained personnel. To sum up we always block off supply and return vents, apply at least two full coats of sealant, and lock entry to containment zones.
That is to say many budget driven projects reduce upfront costs but end up costing more in repairs and replacement encasements. In other words putting proper resources into high quality materials and skilled labor pays dividends over time. Further it is common to forget about perimeter scrutiny. For instance cracks around window frames or baseboards can provide escape routes for fibers if left unsealed. Above all we recommend a detailed check list for every containment job to avoid these pitfalls.
Knowing When to Upgrade to Full Removal
Containment does not remain the best choice forever. In fact if renovation plans accelerate or building use intensifies removal may become more cost effective. Firstly significant structural upgrades often disturb multiple asbestos areas at once making full abatement logical. Secondly if a material begins to deteriorate beyond repair containment can no longer guarantee safety. In addition when property changes hands such as in a sale some regulations require complete removal. Consequently we revisit the containment strategy periodically and adjust based on evolving needs and compliance updates.
Take Action
If you need a clear assessment of your options our team at Envirotech can help you weigh containment against removal. We walk you through each scenario so you understand long term implications. To discuss containment solutions and ensure the health of your occupants please Contact Us.
FAQ
What is asbestos containment
Asbestos containment is the process of isolating materials that can release harmful fibers rather than removing them. It uses barriers and sealants to prevent disturbance and reduce exposure risk.
How long can containment last safely
With proper materials and regular maintenance containment can last for many years. Typically inspections every three months and annual air tests keep the barrier in top condition.
Can containment be a temporary solution
Yes containment often serves as an interim step until full removal can be scheduled. It secures asbestos until budgets or operational plans allow for comprehensive abatement.
What are signs of containment failure
Visible cracks, peeling paint, or loose panels signal a breach. In addition sudden changes in air test results may indicate fiber migration outside the barrier.
Do I need testing after containment installation
We recommend clearance tests after installing containment and then yearly sampling. That confirms the barrier works and air remains free of asbestos fibers.