London ASBESTOS & LEAD TESTING
Asbestos and Lead are considered Designated Substances. This means that by law, materials that may contain either asbestos or lead, must be tested for their presence prior to being removed or disturbed.
Ontario Regulation 278/05: Designated Substance - Asbestos on Construction Projects and in Building and Repair Operations, governs the minimum requirement for testing, safe removal/abatement practices, and post-abatement clearance testing.
Under O. Reg 278/05, a building material is considered to be non asbestos if the minimum number of samples for that materials are found to contain asbestos in quantities less than 0.5%. Materials with asbestos content greater than 0.5% are considered an Asbestos Containing Materials (ACMs).
Any asbestos containing material that is going to be disturbed or removed, must be removed using proper asbestos abatement procedures. Friability is the most important factor for determining the proper abatement procedures to be used during asbestos removal.
Friability refers to a material that “when dry, can be crumbled, pulverized or powdered by hand pressure, or is crumbled, pulverized or powdered”.
Non-friable materials, such as joint compound containing asbestos, can be removed using Type 1 abatement if amount of drywall containing asbestos joint compound to be removed is < 10 Square Feet. If the amount of drywall containing positive joint compound to be removed, is > 10 Square Feet, then Type 2 abatement procedures must be used.
Friable materials, such as asbestos containing wall plaster, require Type 2 abatement if amount of asbestos containing plaster to be removed is < 10 Square Feet. Or, Type 3 abatement if amount of wall plaster to be removed is > 10 square feet.
Due to its friability and high volumes usually present in attics, asbestos containing vermiculite insulation must be removed using Type 3 abatement procedures.
For more information, please give us a call (613)366-5226.