<p>The National Energy Code of Canada for Buildings: 2025 (NECB) sets technical requirements that address the protection of the environment in the design and construction of new buildings and in subsequent alterations. The 2025 edition of the NECB includes the following updates:</p>
<ul>
<li>Expansion of the environment objective to address greenhouse gas emissions;</li>
<li>Introduction of a harmonised framework that aims to reduce the operational greenhouse gas emissions of buildings, offering provinces and territories a harmonised pathway to reduce emissions over time by choosing the performance level that best suits their needs;</li>
<li>Introduction of energy efficiency requirements for the alteration of existing buildings, offering building officials a harmonized framework to enforce code requirements in retrofits;</li>
<li>Updated requirements to account for the impact of thermal bridging through the building envelope Introduction of an energy use intensity path for compliance with energy performance tiers, providing builders with an additional option to demonstrate compliance that recognizes the inherent efficiencies of smaller, more compact housing forms; and</li>
<li>Inclusion of projected climatic data, which anticipates climate trends over the next 50 years, so buildings are better prepared for future climate conditions in Canada.</li>
</ul>

National Energy Code of Canada for Buildings: 2025

<p>          The summary of this document was written by researchers at the <a href="http://lse.ac.uk/grantham" target="_blank"> Grantham Research Institute </a> .           If you want to use this summary, please check <a href="https://www.lse.ac.uk/granthaminstitute/cclw-terms-and-conditions" target="_blank"> terms of use </a> for citation and licensing of third party data.</p>

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An aim to achieve a quantifiable outcome within a given time-frame, set by an institution such as a national government.

Policy instruments are techniques or tools used by governing authorities to promote certain policies in order to achieve predetermined goals. Put simply, instruments are how a government tries to achieve its goals, with this taxonomy being focused on national policy instruments.

Risk is the potential for adverse consequences resulting from the dynamic interplay between (climate-related) hazards, exposure, and vulnerability of affected human or ecological systems.

Groups  of people who are adversely affected by climate change or the response to it

A set of principles, processes, and practices that build economic and political power to shift from an extractive economy to a regenerative economy.

Justice is the ethical and political framework that addresses fairness, including issues of responsibility, rights, and structural inequity.

Renewable energy means all forms of energy produced from renewable sources in a sustainable manner.

Fossil fuel is a generic term for non-renewable energy sources such as coal, fossil gas, and oil (including crude oil, and petroleum products), that can be used for electricity and heat generation. Fossil fuels are hydrocarbons formed from pressurised and heated organic material buried over millions of years.

Molecules in the atmosphere that play a key role in the greenhouse effect by trapping heat radiating from Earth’s surface.

Area of the economy in which actors engage in identical or related activities.

In human systems, the process of adjustment to actual or expected climate change and its effects, in order to moderate harm, increase resilience or exploit beneficial opportunities. In natural systems, the process of adjustment to actual climate change and its effects; human intervention may facilitate adjustment to expected climate change and its effects.

The management and allocation of funds, assets and investments to meet various objectives

Codes and standards are regulatory instruments that specify minimum standards to protect health and safety. This ranges from performance standards, which prescribe outcomes while allowing flexibility to achieve compliance, to the more prescriptive approach of technology-specific standards.

A ban is a legal action that prevents the sale or supply of a product or service, or that recalls a product from the market. Examples are bans on SF6, greenwashing, fossil fuel advertisement or single-use plastics.

A company that is owned wholly or partially by the state, typically operating in key sectors.

Actions or measures to adapt freshwater systems to climate change.

Actions to adapt and increase the resilience of rural and urban infrastructure and settlements to climate change.

Actions or measures to adapt freshwater, coastal and marine systems to climate change.

A long-lived, colourless gas, chiefly emitted from fossil fuel combustion, deforestation and cement production.

Agriculture mitigation refers to practices used to mitigate greenhouse gas emissions at every level of the agrifood systems, from production to consumption.

Replacing technologies that burn fossil fuels directly with alternatives powered by electricity.

Actions to reduce emissions in energy generation and supply.

Technologies that capture and hold energy in reserve for later use.

Extreme weather refers to events where a weather variable exceeds (or falls below) a threshold. Meaning it is significantly different from the average or usual weather pattern.

Air pollution involves harmful contaminants in the air, affecting both indoor and outdoor environments. It can lead to health issues like respiratory diseases and heart problems, and climate impacts such as global warming. Pollutants can damage plants, trees, habitats, and water bodies like rivers and lakes.

Production of electricity and heat from solar irradiation.

Fossil gas, commonly known as natural gas, is a fossil fuel consisting chiefly of methane with smaller amounts of other hydrocarbons and trace gases, found in underground deposits.

Jobs that contribute to preserving or restoring the environment. We include jobs which require a high amount of green skills or which spend much of their time on green activities, as well as jobs transforming polluting industries.

The activities of industries that transforms raw materials into finished goods through industrial processes.

The activities of industries involved in the production, distribution, and sale of energy, including electricity, gas, and renewables.

Activities that involve planning, designing and building infrastructure, residential, and commercial structures.

This sector involves activities to move goods and people, alongside the storage of products.

This sector creates and distributes information and entertainment through television, radio, print, and digital platforms.

This sector provides communication services, software development, and IT solutions.

This sector involves activities that impart knowledge and skills to individuals, including formal schooling, vocational training and educational support.

Activities of government agencies and institutions that provide public services, enforce laws and manage public resources.

This sector involves the distribution, treatment, and conservation of water resources.

the fair distribution of risks and opportunities of climate change and the transition to a regenerative economy, cognisant in particular of disproportionate impacts on vulnerable communities and the working class

Procedural justice means ensuring that decision making is safe, transparent and inclusive, emphasizing the agency and influence of vulnerable groups and those most impacted.

Climate change can have a range of impacts on technological system. Extreme weather events can cause infrastructure failures like power outages or damage to roads and bridges, as well as the impacts from waste following natural disasters. Human activities also cause technological impacts, such as the risks posed by oil spillage and leaks.

Any substance with chemical properties that can cause physical harm to people or damage the environment, including ammonia, carbon monoxide, phosphine, chlorine, arsenic, cadmium, mercury, pesticides, dioxins, microplastics, benzene, asbestos, aflatoxins, fluoride, methanol, and toxins from marine sources.

Slow onset events evolve gradually from incremental changes over many years or from increased frequency or intensity of recurring events. As defined in the Cancun Adaptation Framework (2010), slow onset events include risks and impacts from rising temperatures, desertification, biodiversity loss, land and forest degradation, glacial retreat, ocean acidification, sea level rise, and salinization.

National Energy Code of Canada for Buildings: 2025

Policy instrument

Risk

Impacted group

Just transition

Climate justice

Renewable energy

Fossil fuel

Greenhouse gas

Economic sector

Adaptation/resilience

Finance