Delivering effective Waste Minimisation - Wrap

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12 Delivering effective Waste Minimisation Contractor The contractor’s main role is to develop the Site Waste Management Plan (SWMP). This focuses upon site and should address both waste reduction and waste management. It is the contractor who sees where waste is generated on site, in what quantity and who should be able to support the designer during the planning stages in looking for waste within the design. Key to this is early contractor involvement. Rather than just focusing upon a waste management strategy, the contractor should also identify a waste reduction strategy by which the total quantity of waste will be reduced. In particular, this strategy should reflect the considerations and design decisions taken earlier in response to waste reduction. The main contractor should also learn lessons for continuous improvement by gathering site waste data and comparing these against benchmarks and targets. It is good practice for a contractor to name an individual who is responsible for the development of the SWMP. Subcontractor The subcontractor is the party that actually orders, and handles the materials. For this reason the subcontractor has a large part to play in delivering the clients objectives and should be engaged early in the waste planning process. In particular, the earlier their involvement, the greater the impact their input may have. They must be encouraged and supported to do so. Some trades are able to provide very focused advice. For example, dry-liners and flooring contractors will be able to produce accurate estimates of materials required, and should be able to identify exactly what waste will be generated – in turn they will be able to recommend ways to reduce this waste. This information should be fed to the main contractor so that it can be incorporated in the SWMP. On completion, the subcontractor should provide accurate data on the actual level of wastage and useful feedback on why waste was generated and how it could be reduced.
Delivering effective Waste Minimisation 13 Guidance Note 1: Communication Overview Central to waste minimisation is communication. Effective communication during design and construction has a direct impact on the type and quantity of waste that is produced on site. Reducing waste should not be difficult on most projects – what is more challenging is that to achieve these reductions project teams need to think about waste differently. Waste needs to be raised up the agenda so that when design decisions are made, or logistics strategies developed, the impact upon waste is considered and action is taken. All team members need to understand and share a common goal – that of waste minimisation. Only by working together will this be possible. On a wider scale, there is a need for information dissemination between projects and industry including lessons learnt and new or alternative approaches to waste minimisation. Below are some of the key opportunities for reducing waste though communication. 1.1 Project requirements Setting project requirements is a ‘hard’ communication mechanism to ensure waste minimisation is considered throughout the procurement process. 1.1.1 Client policy The client can set an overarching environmental or procurement policy requirement to signal intention and provide a mandate for action in materials efficiency. The following statement is a model client policy: ‘As part of its commitment to sustainable construction, [Organisation name] aims to improve its efficiency in the use of material resources. One targeted outcome is to continuously reduce the quantity of waste arising and increase the recovery of materials for reuse and recycling on all construction projects. Therefore, in its procurement, [Organisation name] will set requirements for its projects to incorporate good practice Waste Minimisation techniques and to plan and implement good practice waste management and recovery in accordance with WRAP guidance.’ Communication opportunities • Project requirements Design opportunities Procurement opportunities Logistics opportunities Project timeline 1.1.2 Project brief The catalyst to waste reduction is the client. As part of the pre-project brief and outline concept, the client needs to establish that waste is an important issue and challenge the project team to deliver a project that uses materials efficiently. This can be achieved through: requiring the design team to identify and reduce waste wherever possible; and requiring the main contractor to develop and implement a SWMP which includes waste minimisation measures. Model forms of words for project briefing can be found in WRAP, Achieving effective Waste Minimisation. • Ways of working 1.1.3 Appointments The involvement of stakeholders with the knowledge, capabilities and willingness to reduce construction waste is essential. Second to client buy-in, appointment of appropriate designers and contractors is a key requirement to fulfil the waste minimisation agenda. Both project briefing and setting robust contractual requirements are ‘hard’ communication mechanisms which ensure the appropriate approach to waste minimisation is taken. For example, reviewing temporary works through an independent buildability review as part of the tender assessment stage can ensure that waste minimisation is considered before the contract award. The key to waste reduction is a change in mindset, rather than off the shelf solutions.
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