Grade 2 listed building RAAC Appraisal

RCS conducted RAAC Options Appraisal on this multi-floor Grade II listed building, saving the local authority an estimated 90% on the proposed roof replacement.

Client situation

• A highly complex, multifloored, Grade 2 listed building which was built in the mid-1970s.
• A structural assessment carried out by a multi-disciplinary construction firm led to a proposal to remove the RAAC panels and install a new roof at a total cost of approximately £60m.
• Engaged RAAC Consulting and Solutions (‘RCS’) to provide a review of the proposed scheme, using their specialist knowledge of RAAC and Options Appraisal methodology.

Sector:
Local Government

Services provided:
RAAC Structural Assessment
RAAC Options Appraisal
RAAC Remediation Implementation

Location:
South-East England

“The specialist expertise of RCS has been a source of huge comfort to us and we can see they will save us £millions.”

RAAC Approach

• Conducting an Options Appraisal – comprising a structural analysis of the RAAC, assessment of specific site conditions and comprehensive data gathering of stakeholder priorities, relating to specific criteria.
• Working with a specialist partner to perform a series of tests on a selection of the RAAC panels, based on a sampling approach.
• All inputs will be worked through a structured process involving client stakeholders and relevant RCS specialists, including those currently leading the research into RAAC on behalf of the UK government.

Outcome

• It is expected that RAAC panel and roof replacement will be unnecessary.
• The best fit and best value for money solution is likely to be a mixed scheme comprising a range of remediation methods, at far lower cost.
• Planned benefits include excellent levels of structural integrity supporting the planned building lifespan, while significantly reducing the total cost of remediation, minimising timeframe and disruption, and allowing adjacent works to boost the thermal efficiency of the building.