SUSTAINABLE BUILDINGS
Asset Classes
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Offices
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- Not applicable
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Enclosed Shopping Centres
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- Not applicable
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Open Air Retail
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- Not applicable
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- Not applicable
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Light Industrial
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- Not applicable
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Multi-Unit Residential Buildings
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- Not applicable
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- Not applicable
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Health Care Facilities
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- Not applicable
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- Not applicable
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Universal
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- Not applicable
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Focus Area
Topic
Question #
Question
Has a Condition Assessment of the envelope and envelope components been completed in the past five years?
Applicability
All asset classes
Owner occupied building
Tenant occupied building
Answer & Scoring
- Yes = Points as indicated below
Select all that apply:
- Thermal Scan = 1 point
- Air Tightness Test = 1 point
- Condition Assessment of Envelope = 3 points
- No = 0 points
- Not applicable – Building was built within the past 3 years with 2 or more of the listed high-performance features = 0/0
Max of 5 points
Requirements
- The Thermal Imaging Scan and Air Tightness Test must:
- Cover all roof and wall components
- Identify areas where higher-than-normal thermal transfer occurs
- The Envelope Assessment must:
- List all envelope components (including but not limited to roof, walls, windows, doors, floors, underground walls, exterior sealant and caulking, structural components, etc.)
- Provide a summary of the performance of the building envelope in terms of water infiltration and condensation, moist air transfer, air flow and heat transfer
- Indicate required replacement date, highlighting components that will require replacement in the next 10 years
If your building has been built within the past 3 years, demonstrate that 2 or more high-performance building envelope features have been implemented:
- Building envelope commissioning completed
- Air sealing with whole building air leakage test completed demonstrating better than typical industry air tightness
- Interior/exterior shading, identifying whether there are automated shading controls
- Triple-paned glazing, including high-performance window assembly OR triple-paned windows with low-emissivity coating, including high-performance window assembly
- Electrochromic glazing or other types of dynamic glazing
- Built-in photovoltaics
- Green roof covering at least 30% of the available roof space
- Reduced thermal bridging to minimize heat transfer through strategies such as continuous insulation and thermal breaks
- Foundation insulation that is 20% better than current code
- Roof insulation that is 20% better than current code
- Wall insulation that is 20% better than current code
- Natural ventilation when outdoor conditions are favorable
For Open-Air Retail, demonstrate that the requirements have been met for 20% of the buildings on-site.
Documentation
Provide the following as applicable to the option(s) selected:
- Thermal Imaging Scan
- Air Tightness Test
- Building drawings
- Signed and/or stamped cutsheets
- Condition Assessment Report of Envelope (excerpt from Building or Property Condition Report containing relevant information is sufficient)
Suggested Lead
Third-party
Value
- The performance of a building is directly related to the performance of the envelope
- A poorly performing envelope can lead to significant energy losses increasing the cost of operations
- Complete an envelope condition assessment to identify components that require updates or replacing in the next 5 to 10 years
- When envelope components need to be replaced, building management should consider upgrading the component to higher performing versions
- To gather further information about the envelope performance, thermal scanning and air tightness testing can be done at the building for additional points. This service will identify areas in the envelope where higher-than-normal heat or air losses occur. Recommendations on how to reduce future energy losses will be made by the service provider
RELATED Questions:
Description
The Condition Assessment contains a list of tactical and strategic items that are used to gather a better understanding of how the building is operating in its present state and how funds need to be saved and/or allocated to repair or replace various items. Tactical items are those that will require attention within the first five years of the report’s completion. Strategic items are those that are looked at after five years and are typically reviewed in the 10-year capital asset management plan.
References
Adapted BB 3.0 Question
Question 01.02.04 — Has a thermal imaging scan of the roof or walls been performed within the past five years?
Question 09.02.01 — Has a property condition assessment (PCA) report been completed for this building within the past five years?