Pre-demolition audits and surveys provide an understanding of key products and construction materials that can be reused on/off site, reclaimed or recycled prior to the demolition or major refurbishment or redevelopment of the site. Sweco’s specialists can determine if, in the case of demolition or refurbishment, reuse of key products or construction materials as per the waste hierarchy is feasible.
Pre-demolition audits (also referred to as pre-redevelopment audits) are surveys undertaken on existing buildings, structures and hard-standing surfaces prior to demolition or major redevelopment. Their aim is to promote resource efficiency and minimise the environmental impact by reducing construction waste and diverting waste away from landfill as part of a Circular Economy (CE). The main focus of a Circular Economy is to place primary emphasis on retaining, reusing or recycling materials prior to demolition or redevelopment for as long as possible.
Key benefit of an audit
A pre-demolition audit will help you maximise the recovery of materials and work to the following waste hierarchy:
Prevention
Preparing for Reuse
Recycling
Other Recovery
Disposal
This will ensure best practice in resource efficiency is adopted by the appointed contractor in order to aid the provision of their waste management plan.
Due to the environmental impact of landfill waste, since April 2008 any construction project in England costing over £300k requires a Site Waste Management Plan (SWMP).
A Pre-redevelopment waste audit can be used alongside the SWMP as required for meeting the BREEAM Wst 01 Construction Waste Management standard, Successful demonstration of construction resource efficiency and the diversion of resources from landfill can gain up to 4 BREEAM credits.
In addition, the Pre-demolition audit is required to support the circular economy statement as part of the planning stage of redevelopment.
Sweco will work in accordance with the BRE Pre-Redevelopment Waste Audit Code of Practice and incorporate the following steps within the PWA:
Collection and examination of available information
Site survey to collect further information
Estimation of types, amounts and weights of materials
Assessment of suitability of material for reuse/recycling/other waste management method
Recommendations for materials management, recycling and target setting
Support for hazardous waste removal
This will ensure that the management of materials from the demolition/refurbishment process is in line with the waste hierarchy and will therefore provide advice on the maximum reuse and open/closed loop recycling of materials to minimise waste.
Together with our clients and the collective knowledge of our engineers, consultants and other specialists, we co-create solutions to address urbanisation, capture the power of digitalisation, and make our societies more sustainable. With international multi-disciplinary teams, we can call on the right insight and technical capability at the right time from across Buildings, Infrastructure, Advisory & Planning and Compliance.
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