The environmental impact of the construction process can be minimised with careful onsite management such as implementing waste minimisation and environmental management plans. This represents an important opportunity to save materials and money.
During the construction of a house there is a significant opportunity to save materials and recycle. This also presents an opportunity to save money in materials.
...20% of New Zealand’s waste in land fills and 80% in clean fills is attributable to the building industry with a cost of over $80m a year.
It is estimated that 20% of New Zealand’s waste in land fills and 80% in clean fills is attributable to the building industry with a cost of over $80m a year1. Landfills use up valuable land area and may also release harmful chemicals into the local environment. Methane is produced during the breakdown of some types of waste; this gas has a Global Warming Potential2 (GWP) 21 times that of carbon dioxide. By employing good management practices onsite construction waste can be dramatically reduced, for example:
- Designing for standard sizes to avoid cut-offs.
- Offsite prefabrication (allows greater use of efficient cuts lists and reuse of off cuts)
- Keeping the design simple.
- Ordering the minimum amount of materials required for the job.
- Recycling all site waste.
- Providing contractors with clear guidelines on waste management practices and ensuring that they buy-in to these practices.
Environmental management on site is important if you wish to minimise the impact of the construction process on the surrounding environment. An environmental management plan (EMP) can be used by the contractors to ensure that environmental accidents are minimised and there are effective procedures in place to deal with accidents should they occur. For example, EMP's often include procedures to avoid contaminated construction run-off entering local waterways. As part of construction EMP procedures regular checks should be carried out to minimise the chance of accidents occurring.
During construction we will have both an environmental management plan and waste minimisation plan in place to minimise the environmental impact of the construction process.
Design Opportunities Matrix
The matrix below shows the key opportunities related to the construction management in the left column and the project goals listed along the top. The coloured boxes indicate the goals that the design considerations contribute towards. The matrix is colour coded as follows:
- Indicates that the design feature has a positive effect on the goal
- Indicates that the design feature has a negative effect on the goal
- Indicates that the design feature can have a negative or positive effect on the goal
The sections of the website listed in the top menu bar are evolving and details on the design initiatives will be added to these sections as we develop the design and build the house.
|Design Feature||Energy Efficiency & GHG||Low Embodied Energy||Water Conservation||Health & Comfort||Waste Minimisation||Low Pollutant Emissions||Durability|
Onsite environmental management [more]
Efficient material use [more]
Waste minimisation and recycling [more]
- Source to be defined