Traditional vs. Sustainable Building Materials: Cost And Performance

by | Jul 1, 2024 | Sustainability, Sustainable Development

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In the construction business, the decision between traditional and sustainable building materials considerably impacts cost and performance. Traditional materials such as steel and concrete have been preferred for durability and familiarity. However, they are frequently associated with environmental costs and high energy usage. Conversely, sustainable materials such as bamboo, repurposed steel, and rammed earth provide environmentally acceptable solutions that minimise carbon footprints and enhance energy efficiency.

While initial costs vary, sustainable materials frequently result in long-term savings and improved building performance. This comparison highlights the shifting objectives in building, which must balance economic considerations with environmental responsibilities.

What are Sustainable Building Materials?

Sustainable building materials like recycled, sustainable, or biodegradable materials have minimal environmental impact. They aim to lower waste, energy consumption, and greenhouse gas emissions while improving indoor air quality, health, and comfort. Sustainable materials include bamboo, hemp, cork, recyclable glass, metal, or plastic, and low-VOC paints and varnishes.

Traditional vs. Sustainable Building Materials: Cost And Performance

What are the Traditional Materials?

Traditional materials, such as synthetic, non-renewable, or poisonous materials, have a significant environmental impact. They are intended to meet practical, aesthetic, and economic objectives but often overlook environmental and social concerns. Traditional materials include vinyl, polyester, nylon, acrylic, PVC, formaldehyde, and lead-based paints and finishes.

What are the Cost Differences?

The cost of sustainable and traditional materials varies according to availability, demand, quality, durability, maintenance, and lifetime. Sustainable materials are generally more expensive upfront than standard materials but less expensive in the long run. This is because sustainable materials have a longer lifespan, use less energy and water, and produce less waste and emissions. Traditional materials, on the other hand, typically have a lower initial cost but a higher long-term price. Traditional materials deteriorate quickly, consume more energy and water, and produce more waste and pollutants. When comparing traditional versus sustainable building materials, it is critical to consider both price and performance. Here’s a detailed look at both sides:

Category Traditional Materials Sustainable Materials
Initial Costs $125 to $200 per sq. ft. $150 to $250 per sq. ft.
Energy Efficiency 20-30% annual energy savings
Maintenance Costs Higher maintenance costs Up to 20% lower maintenance costs
ROI (10 years) 5-10% 10-15%
Carbon Footprint 0.9 tons of CO2 per ton of cement Up to 50% lower emissions
Market Premium Up to 10% higher resale value
Construction Cost (10,000 sq. ft. office) $1.5 million $1.8 million

Traditional Building Materials

  • Concrete is mostly used due to its strength and durability. Costs vary according to type and local availability.
  • Steel is known for its strength and flexibility. Although it is very pricey, it is extremely durable and resistant to natural disasters.
  • Wood is commonly used in residential buildings. It is generally inexpensive; however, prices vary greatly depending on the type and quality of wood.
  • Brick and mortar are durable and provide good thermal mass. Construction techniques that need a lot of labour might lead to expensive costs.

Sustainable Building Materials

  • Bamboo grows swiftly and is renewable. Prices are generally lower than traditional hardwoods but vary depending on local availability and processing.
  • Recycled steel reduces environmental impact. The recycling process frequently makes used steel more expensive than new steel.
  • Straw bales are low-cost and provide good insulation. Labour expenses may be more significant due to specialised construction procedures.
  • Rammed Earth, which is made from natural resources such as soil and clay, involves Labour expenses that can be significant initially, but energy efficiency saves money in the long run.
  • Hempcrete is made from hemp fibres and lime. It is generally more expensive initially, but it provides good insulation and longevity.

Also Read: Best Green Building Consultant Jobs In The USA

What Factors Affect Their Selection and Performance?

The selection and performance of sustainable and traditional materials for a project are determined by its aims, context, and constraints. The client’s vision, values, and budget, the project’s location, climate, and restrictions, and the user’s demands, preferences, and behaviour must all be considered. Factors to examine include the material’s qualities (e.g., colour, texture, pattern, and acoustics), compatibility, usefulness, adaptability, sourcing/transportation/installation procedure, and maintenance/repair/disposal.

Using sustainable materials in commercial interior design projects can provide numerous benefits, including improved client brand image and reputation, improved user health and productivity, long-term cost and resource savings, and contribution to social and environmental responsibility. However, there are certain hurdles to adopting sustainable materials, such as locating trusted sources and suppliers, convincing stakeholders of the benefit of sustainable materials, balancing sustainability with other design goals, and maintaining current with trends and advances.

How do Sustainable Materials Contribute to Green Building Certifications?

Sustainable materials are vital in green building certification systems like BREEAM (Building Research Establishment Environmental Assessment Method), LEED (Leadership in Energy and Environmental Design), and others. These certifications are intended to analyse and recognise buildings that satisfy particular standards for sustainability, energy efficiency, and environmental responsibility. Here’s how sustainable materials help with these certifications:

  • Resource Efficiency

Use materials derived from renewable sources, such as bamboo and cork, which regenerate quickly and can be obtained sustainably. Incorporating materials with high recycled content, such as recycled steel, glass, and concrete, minimises the requirement for virgin resources and contributes to waste reduction. Durable and long-lasting materials lessen the need for frequent replacements, preserving resources throughout the building’s life cycle.

  • Energy Efficiency

Sustainable insulating materials, such as cellulose, wool, and straw bales, increase energy efficiency by minimising the need for heating and cooling. Materials like rammed earth and recycled concrete can retain thermal energy, resulting in a more constant indoor temperature and lower energy use.

  • Environmental Impact

Using energy-efficient components, such as locally sourced materials, minimises the building’s overall carbon impact. Materials that release minimal or no volatile organic compounds (VOCs) and other toxic substances improve indoor air quality while reducing environmental pollution.

  • Waste Reduction

Prefabricated and modular materials can help reduce building waste. Materials designed for disassembly and reuse at the end of their life cycle adhere to circular economy concepts.

  • Water Efficiency

The use of porous paving materials reduces stormwater runoff and promotes groundwater recharge. Incorporating water-saving fixtures made of sustainable materials, such as low-flow faucets and toilets.

  • Innovation and Design

New and novel sustainable materials, such as bio-based composites and advanced engineered wood products, can help achieve higher certification levels. Using living roofs or green roofing systems that include vegetation and sustainable materials improves energy efficiency and stormwater management.

  • Certification Specific Criteria

Regionally sourced materials contain recycled content and meet low emissions and environmental criteria that are prioritised. The program focuses on responsible material sourcing, lifetime impact evaluations, and using materials that improve energy efficiency and indoor environmental quality.

In short, sustainable materials are essential for green building certifications since they help to reduce environmental impact, increase energy and resource efficiency, and improve indoor environmental quality. These materials enable buildings to attain higher certification levels while also demonstrating the concepts of sustainability and environmental management.

Conclusion

In the debate over traditional and sustainable building materials, it is clear that each has unique benefits and challenges. Traditional materials, such as concrete and steel, provide established durability and familiarity but frequently come with high environmental costs. Sustainable materials, such as bamboo and recycled composites, offer environmentally friendly alternatives that help to minimise carbon footprints and conserve resources. However, these sustainable choices may need more support for mass availability and long-term performance evaluation. Finally, the decision between these materials is based on balancing urgent construction needs with long-term environmental impact, encouraging the industry to adopt more innovative and ethical building techniques.

Also Read: AI In Green Buildings And Sustainable Construction

Author

  • Dr. Elizabeth Green

    With over two decades of experience in sustainability, Dr. Elizabeth Green has established herself as a leading voice in the field. Hailing from the USA, her career spans a remarkable journey of environmental advocacy, policy development, and educational initiatives focused on sustainable practices. Dr. Green is actively involved in several global sustainability initiatives and continues to inspire through her writing, speaking engagements, and mentorship programs.

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