Sustainable Building Practices Study Notes

Audio and Presentation Issues

  • Apologies for audio and gear delay.

  • Options available for audio issues if problems persist.

Class Overview

  • Welcome to CT 355 Sustainable Building Practices.

  • This session is focused on sustainable building, materials and resources.

  • Reminder that the previous week had no class; next week will also have no class.

  • Exam 2 due next week, available until Monday midnight after this class.

Course Structure Changes

  • Review of syllabus changes due to dropped session; only 13 modules for 14 class sessions.

  • Queries about schedule changes permitted at the beginning of class.

Key Concepts for Discussion

  • Overview of five key concepts in sustainable building practices.

    • Sustainable Development Framework

    • Management of Facility Life Cycle

    • Engineering Professional Ethics

    • Material Life Cycle

    • Impact and interest of clients over individual interests.

Important Legislative References

  • Virginia Code requires engineers to protect public health and safety.

  • Professional ethics from associations like NSPE and American Society of Civil Engineers relevant to sustainable development and professional practice.

Lead Version Five Requirements

  • Discussing material sustainability and Lead Version 5:

    • Required items include planning for zero waste operations and carbon load discussions.

  • Overall focus on reducing environmental impact via resource management.

    • Emphasis on reuse and recycling in construction processes to gain maximum LEED points.

Sustainable Materials Key Focus

  • Need for understanding materials and resources for design specific conversations.

  • Presented lifecycle of building materials:

    • Extraction: Removal from the environment (e.g. sand, trees, water).

    • Transformation: Manufacturing processes transforming raw materials into usable forms (e.g. steel from iron, coal).

    • Distribution: Transportation to job sites (e.g. how materials are moved).

    • Use and Disposal: Installation into buildings and eventual disposal methods.

Lifecycle of Materials

  • The importance of a closed-loop cycle in material use and reuse processes.

  • The embodied energy of materials defined as energy necessary to produce them throughout their lifecycle.

    • Energy consumption needs quantified (e.g. 5 gigajoules/m² for energy content).

    • Breakdown of energy consumption within a building's structure.

  • Building materials breakdown:

    • Envelope via structure (50% energy).

    • Services (25% energy).

    • Construction and site works (7% energy).

    • Finishes (ideal energy distributed).

Sustainability in Engineering Practices

  • Discussed how minimizing materials used reduces overall energy and maximizes sustainability.

    • Not over-engineering materials or applications prevents waste in construction.

    • Reusability of building components for sustainable practices.

  • The importance of durability in materials selection to ensure long-lasting structures.

    • Examples: Durable surfaces vs temporary finish materials.

Addressing Safety and Maintenance in Materials Selection

  • Consideration of sound attenuation, volatile organic compounds, and maintenance in materials to ensure occupant comfort.

    • Examples given of carpet vs laminate vs concrete depending on location usage and traffic.

    • Choice of materials impacts health and safety standards in buildings.

Conclusion and Guidelines for Sustainable Practices

  • Emphasis placed on reducing unnecessary demolition and optimizing construction waste diversion.

    • Sustainable deconstruction practices recommended.

    • Itemize building components to minimize waste (segregation).

  • Examined how clients can be educated about the benefits of sustainable practices.