Greenhouse Gas Emissions for Selected Building Elements

Groups: 
  • Design Projects
Category: 
  • Materials

Basic

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Motive:

Construction materials production accounts for a large proportion of the building and construction sector's climate footprint. Reduced energy consumption in buildings means that emissions from materials are becoming more important in climate footprints in comparison with energy consumption. In addition to this, energy efficient solutions for buildings can entail the use of more materials and thus also increase the greenhouse gas emissions from materials in absolute terms.

Argument:

Comparing different concepts and solutions with respect to the materials chosen in a building can provide information that helps you make choices that reduce the building's climate footprint. Comparisons are made using greenhouse gas accounts (LCA) that assess potential environmental impacts, e.g. greenhouse gas emissions over a product's or building's life cycle, from extraction of the raw materials to production and disposal.

Requirement Specification: 

Greenhouse gas accounts must be established during the execution of a project with alternative materials/elements for the following building elements:

  • load bearing system
  • outer walls
  • decks

Greenhouse gas calculations must be performed as part of project management and used to recommend the most climate-friendly alternatives. You must document how the calculations have affected the actual choice of materials/elements.

The calculations for the alternative building elements must be presented in a report.

The calculations must encompass the entire life cycle of the alternatives, from cradle to grave, in accordance with the Norwegian standard, NS 3720 - Method for greenhouse gas calculations for buildings.

The alternatives compared must have the same function.

Advanced

Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Motive:

Construction materials production accounts for a large proportion of the building and construction sector's climate footprint. Reduced energy consumption in buildings means that emissions from materials are becoming more important in climate footprints in comparison with energy consumption. In addition to this, energy efficient solutions for buildings can entail the use of more materials and thus also increase the greenhouse gas emissions from materials in absolute terms.

Argument:

Comparing different concepts and solutions with respect to the materials chosen in a building can provide information that helps you make choices that reduce the building's climate footprint. Comparisons are made using greenhouse gas accounts (LCA) that assess potential environmental impacts, e.g. greenhouse gas emissions over a product's or building's life cycle, from extraction of the raw materials to production and disposal.

Requirement Specification: 

Greenhouse gas accounts must be established during the execution of a project with alternative materials/elements for the following building elements:

  • load bearing system
  • outer walls
  • decks
  • inner walls
  • outer roof

Greenhouse gas calculations must be performed as part of project management and used to recommend the most climate-friendly alternatives. You must document how the calculations have affected the actual choice of materials/elements.

The calculations for the alternative building elements must be presented in a report.

The calculations must encompass the entire life cycle of the alternatives, from cradle to grave, in accordance with the Norwegian standard, NS 3720 - Method for greenhouse gas calculations for buildings.

The alternatives compared must have the same function.

Related links: 

Published: 07. Feb 2018, Last modified: 31. May 2019