SUSTAINABLE BUILDINGS
Asset Classes
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Offices
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Enclosed Shopping Centres
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Open Air Retail
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Light Industrial
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Multi-Unit Residential Buildings
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Health Care Facilities
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Universal
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Focus Area
Topic
Question #
Question
Has a Radon Risk Assessment been performed?
Applicability
Applicable to all buildings (systems or equipment in the owner or landlord’s control)
Answer
Yes or No
If no, for properties located in Canada, go to link, find the region where this building is located and enter the % of homes in that region with high radon levels: ____ %
Description
Radon is a colourless, odourless, naturally occurring radioactive gas present in soil, rock and water.
In outdoor environments the concentration of radon is low, and the associated health risk is negligible. However, radon can enter buildings through any openings that are in contact with the sub-surface soil and rock, and can accumulate to higher concentrations which results in a higher health risk for the occupants within.
Health Canada has identified elevated radon concentrations in every public health unit across Canada and as such, it is recommended that every building be tested in order to confirm if radon levels within are acceptable. The only way to know the radon concentrations that are present within a building is to test for it.
Requirements
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- Conduct testing in the following locations:
- Radon testing must occur in all occupied areas where the floors or walls are in direct contact with the ground or is over crawlspaces, utility tunnels or parking garages. Health Canada defines an occupied area as one that is occupied by an individual for four hours per day
- Unoccupied rooms should also be tested at the same time as occupied rooms if there are plans for them to become occupied in the near future
- If none of the ground contact floors are occupied, test all occupied rooms on the first occupied floor level above
- Measurement of occupied areas within a building is required for a minimum duration of 91 days. The testing period will occur entirely during the heating season.
- Use only measurement devices approved by C-NRPP
- Final analysis must be completed by a laboratory certified by the C-NRPP or similar. Not all measurement protocols require laboratory analyses (e.g., E-PERM Electrets) so long as the analyst is accredited to conduct that analysis through C-NRPP
- The radon risk assessment report must be signed by an individual certified by the C-NRPP or similar certification body
- Conduct testing in the following locations:
Documentation
- Radon Risk Assessment Report
Adapted BB3 Question
Suggested Lead
References
Crosswalk
Third-party
Other Notes
Scoring
3 Points