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We live in a time of atmospheric changes, rising temperatures, and melting ice caps. Simply trying to use less energy and produce greener products is no longer enough – we have to look at our entire lifestyles and adapt. One of the best things we can do to help the planet is to make buildings sustainable, and the first step in doing that is understanding the life cycle of sustainable buildings.
The life cycle of a sustainable building is the process by which a building is designed, constructed, operated, and decommissioned in a manner that is environmentally responsible and resource-efficient. It includes all aspects of construction, operation, and eventual demolition.
Sustainable buildings are becoming increasingly popular as we strive to minimize environmental impact. But what exactly is a sustainable building and how does it differ from a traditional building? In this blog post, we’ll look at the life cycle of a sustainable building and explore its many benefits.
What Is a Sustainable Building?
A sustainable building is designed using principles that minimize the negative impact on the environment. This includes using renewable materials and construction methods that minimize pollution. Sustainable buildings also incorporate features that improve energy efficiency, such as solar panels.
The term “sustainable building” encompasses a broad range of topics related to the design, construction, operation, and maintenance of structures with a minimal negative impact on the environment and human health. To be truly sustainable, a building must be designed and built using an integrated approach that considers all aspects of the project, from site selection to materials selection to energy efficiency to water conservation.
There are many different ways to measure the sustainability of a building. Still, most experts agree that the three most important factors are reducing energy consumption, water consumption, and indoor air quality. By making small changes in each of these areas, we can significantly impact the overall sustainability of our built environment.
What Is Life Cycle Management in Sustainability?
The life cycle of a product or system is the total time from its conception and design to its eventual disposal or recycling. Life cycle management (LCM) is a holistic approach to managing a product’s life cycle to reduce environmental impact and cost.
LCM is an essential tool in sustainable development because it considers the whole life cycle of a product or system, not just its individual parts. This means that LCM can help to reduce environmental impact at every stage of a product’s life, from manufacture to use to disposal.
LCM is a crucial tool for sustainability because it helps businesses and organizations identify and address their products’ and processes’ environmental and social impacts. By taking a life cycle approach, businesses and organizations can find ways to reduce the adverse effects of their products and processes while still providing value to their customers.
The 8 Stages of Sustainable Building Life Cycle
The life cycle of a sustainable building begins with the planning and design phase. At this stage, architects and engineers determine the best way to minimize the environmental impact of the building.
The construction phase is next. This is the stage when the building is built according to the sustainability standards set out in the planning and design phase. Once the building is completed, it enters the operating phase (i.e., the period when its occupants use it on a daily basis). The building is then decommissioned when it is near its end of life.
Of course, the actual life cycle is more fleshed out than these four phases. There are “sub-steps” in each phase, and each plays an important role in the success of a sustainable building endeavor.
Here’s a rundown of each stage of the sustainable building life cycle:
1. Raw Material Extraction and Processing
The first stage of the sustainable building life cycle is raw material extraction and processing. This includes sourcing materials like wood, metal, glass, and concrete from sustainably managed forests, mines, and quarries.
After the raw materials are extracted, they need to be processed into the finished product. This usually involves manufacturing processes like casting, molding, and milling. The goal of this stage is to minimize the environmental impact of the building project. This includes reducing greenhouse gas emissions, waste, and water consumption.
Processing raw materials require a lot of energy and can cause environmental pollution. However, there are ways to minimize these impacts. For example, using recycled materials or using more energy-efficient methods of processing raw materials can help reduce the environmental effects of this stage of the sustainable building life cycle.
2. Manufacturing and Building Materials
The second sustainable building life cycle stage is manufacturing and building materials. In this stage, builders use eco-friendly materials to construct the buildings. There are many different types of eco-friendly materials that can be used in construction.
Some of the most popular sustainable materials include bamboo, recycled plastic, and recycled glass. Sustainable building materials are often more expensive than traditional materials. However, they are becoming more affordable as supply increases in response to the high demand.
Builders also use green construction methods to minimize the impact on the environment. Green construction techniques include using recycled materials, favoring renewable energy sources, and reducing waste.
After the building is constructed, it is crucial to maintain the structure properly to prolong its life cycle. Regular cleaning and maintenance can help to extend the life of a building and keep it looking its best.
3. Transportation to Construction Site
The third sustainable building life cycle stage is transportation to the construction site. This stage includes various activities, all of which must be planned and coordinated to minimize the environmental impact of the construction project.
The first step in this stage is determining the most efficient transportation route. This involves considering several factors, such as traffic patterns, road conditions, and weather. Once the route has been determined, the next step is to choose the most appropriate mode of transportation.
Several transportation options are available, including trains, buses, cars, and trucks. Public transportation is usually the most environmentally friendly option, but this may not always be practical. If public transportation is not an option, the next best option is generally carpooling or using hybrid vehicles.
Once the transportation has been arranged, the next step is transporting the materials to the construction site. This stage of the process can significantly impact the environment, so it is essential to be as efficient as possible. Materials should be loaded onto trucks to minimize wasted space and fuel consumption.
4. Utilization in Construction of Building
The fourth stage of the sustainable building life cycle involves using materials to construct the building. The materials used in construction must be environmentally friendly and have a long life span. The construction process must also be efficient to minimize waste.
The main objective of this phase is to ensure that the building is constructed per the approved plans and specifications. Since the planning stage emphasizes minimizing the environmental impact of the construction process, building to plan makes the building sustainable.
After the building is constructed, it must be adequately maintained to ensure its sustainability. This includes regular cleaning and repairs, as well as monitoring of energy use. If the building is not correctly maintained, it will not be able to achieve its full potential lifespan.
5. Operational Use of Building (Including Its Occupants)
The operational stage of a sustainable building’s life cycle is critical in reducing its environmental impact. The practical use of the building includes the activities of the occupants, which interact with the building systems. The occupants use the building for its intended purpose, and as they do so, they impact the indoor environment and the building’s energy use.
Occupants play a vital role in this stage, as they are the ones who actually use the building daily. Their behavior can go a long way to reducing the environmental impact of a building in the operational stage of the sustainable building life cycle. That’s why occupants must be aware of their actions’ impact on the environment and take steps to minimize their impact.
Occupants can do several things to reduce their impact, such as conserving energy, recycling, and using less water. By taking these actions, occupants can help to prolong the life of the building and make it more sustainable overall.
6. Refurbishment and Reuse of Building
It is essential to consider the end of a building’s life when it is first designed and constructed. This is because buildings can significantly impact the environment, both during their use and after they are no longer needed.
When a building is no longer fit for purpose, it can be refurbished or reused. Refurbishment means making changes to the structure or fittings of a building so that it can be used again. Reuse means using a building for a different purpose than initially intended.
Both refurbishment and reuse can prolong the life of a building and reduce its environmental impact. They can also save money compared to demolishing the building and starting from scratch.
If you are planning to refurbish or reuse a building, there are a few things to consider:
- The existing structure of the building: Is it sound and in good condition?
- The new use of the building: What changes will need to be made to accommodate this?
- The environmental impact: How will further usage affect energy consumption and waste production?
- The cost: Is it more cost-effective to refurbish or reuse the building rather than demolish it?
7. Demolition of Building at the End of Life
Once a building has reached the end of its useful life, it must be demolished in a safe and environmentally-friendly manner. The first step in demolition is to strip the building of all its materials. This includes removing any asbestos, lead paint, or other hazardous materials. These materials must be disposed of properly to avoid contaminating the environment.
After the hazardous materials have been removed, the rest of the building can be demolished. The methods used for demolition will vary depending on the type of building and its location. For example, a high-rise office building will be demolished differently than a wooden house.
Once the building has been completely demolished, the site must be cleaned up and restored to its original condition. This includes removing any debris, contaminated soil, or groundwater. The site must then be tested to ensure it is safe for future use.
8. Recycling and Disposal of Recovered Materials
The recycling and disposal of recovered materials is the final stage of the sustainable building life cycle. Once the building has been demolished, all of the salvageable materials will be recycled or reused.
Materials that cannot be recycled or reused will be disposed of in an environmentally responsible manner. This may include incinerating the material to generate energy or sending it to a landfill. However, it is essential to note that landfills are a significant source of greenhouse gas emissions, so it is much better to recycle or reuse recovered materials instead.
The goal of this stage is to minimize the waste generated from the demolition of the building. By recycling and reusing as much material as possible, we can reduce the negative impact of construction projects on the environment.
Why Life Cycle Management Is Important in Sustainable Building Practices
There are many reasons why building lifecycle management is vital to environmental sustainability:
- It helps prevent pollution and conserve resources.
- It can extend the life of materials and buildings, which reduces waste and ultimately saves money.
- It helps create a closed-loop system, where materials are reused or recycled instead of being sent to landfill.
While lifecycle management has many benefits, it is not without its challenges. Implementing lifecycle management practices can be costly and time-consuming. Support from the government is also far from where it should be, and the same can be said for public awareness.
The life cycle of a sustainable building is a complex and dynamic process. In this article, we’ve covered the major stages of the life cycle of a sustainable building. Hopefully, today’s discussion has given you a better understanding of the process and the challenges involved in creating a sustainable building.
- Iberdrola: The ‘green’ buildings are leading the way to more sustainable and efficient urban planning
- Barbulianno: 18 Eco-Friendly Building Materials That Help You Save Energy And The Earth
- Senseware: Top 10 Sustainable Building Methods
- Institution of Historic Building Conservation: Refurbishment
- Science Direct: Life Cycle Management