When selecting windows for a building project, along with performance and adapta

admin

试卷: LEED v4 GA模拟题A卷[查看]
When selecting windows for a building project, along with performance and adaptability, what else should the project team consider?

A: Embodied energy of the windows
B: The social context of the windows
C: Leverage points in the windows
D: Reusing old windows

参考答案: A

本题解释:
A:Embodied energy is an accounting methodology which aims to find the sum total of the energy necessary for an entire product lifecycle. This lifecycle includes raw material extraction, transport, manufacture, assembly, installation, disassembly, deconstruction and/or decomposition.
For example consider a clay brick. This includes the energy to extract the clay, transport it to the brick-works, form the brick, fire it in the kiln, transport it to the building site and put the brick into place. It also includes all the indirect energy required, i.e., all the energy required to manufacture the equipment and materials needed to manufacture a brick, e.g. trucks, kilns, mining equipment, etc. All have a proportion of their energy invested in the brick.
When selecting a building material there are three things that should be considered:
1. Performance - How will the material perform compared to other alternatives? Consider insulation - should the project use foam insulation, batt insulation, or something else for the best insulating properties?
2. Adaptability - Can the insulation be reused in the future when the building is at the end of its life or will it need to be disposed of?
3. Embodied energy - How much energy went into manufacturing each type of insulation being considered. Was the insulation sourced close by or was manufactured in an environmentally unfriendly plant and then shipped from overseas?
B:Windows do not have a social context.
C:A leverage point is a tipping point in a system where a small change can lead to large changes in results.
D:LEED does not encourage reusing old windows since they are usually less energy efficient.