Hogwood Industrial Estate, Finchampstead, Wokingham, Berkshire, RG40 4QQ+44 118 430 8430
RAAC assessment in Woodley, Berkshire

RAAC Assessment in Woodley

Structured Carbon carries out RAAC structural assessments for buildings in Woodley and across Berkshire. Unusually, the surveyor and the assessing engineer are one team: Neil Smuts (MCIOB, MInstNDT, FRCSP), President of the UK Concrete Scanning Standard and a Fellow of the Register of Concrete Scanning Professionals, gathers the evidence, and John Staves (CEng FIStructE, MIoD), a chartered structural engineer and one of the UK's leading specialists in RAAC, assesses it. Nothing is lost in translation between the two.

  • Assessed by John Staves, CEng FIStructE MIoD, a chartered engineer who specialises in RAAC
  • Built on survey and scanning evidence from Neil Smuts, MCIOB MInstNDT FRCSP
  • Panel-by-panel: what can stay in use, what needs propping, what needs monitoring
  • Strengthen-or-replace answered honestly, with the cost picture

Based in Finchampstead, Wokingham. Woodley is local to us.

RAAC assessment in Woodley, Berkshire, by Structured Carbon
Thousands of m²of RAAC surveyed, with GSSI and Proceq radar and ultrasonic instruments read by the man who leads the national scanning standard
1 to 2 daysis usually how soon we can be on site in Berkshire; the report follows within five working days of the visit
Under 15%of replacement cost is where a bespoke CFRP scheme frequently lands across the RAAC tenders we cost
£10m PIprofessional indemnity held to a maximum of £10 million; every assessment signed by a Fellow of the IStructE

How John Staves assesses RAAC

The assessment takes the survey record for the building in Woodley, panel by panel, and turns it into engineering conclusions. Each panel is classified on its condition, bearing, cracking, deflection and exposure to water, with reference to the current Institution of Structural Engineers guidance on RAAC. The assessment states which panels can remain in use as they are, which need propping or restricted use now, which should be monitored, and which need intervention.

It then answers the question the budget depends on: can this roof be strengthened in place, or does it need to come out? Where strengthening is viable, the assessment says so and sets out what the scheme would need to achieve.

Why the assessment decides the budget

RAAC is not a single condition. Planks that have been kept dry, bear properly on their supports and show no deflection behave very differently from planks that have been wet for decades or sit on a bearing that is too short. The assessment separates the two for your building in Woodley, and it is the difference between them that decides whether strengthening in place is on the table. Across the RAAC tenders we cost, a bespoke CFRP scheme engineered for that exact roof frequently comes in at well below 15 per cent of the cost of full replacement. On one tender, a roof costed at around £40 million to replace was priced for strengthening at under £4 million.

Where it is, the same team designs and delivers it. Where it is not, we say so.

From inspection to a management and remediation strategy in Woodley

Which school RAAC surveyors can also provide a management and remediation strategy following inspection? The answer is a team where the surveyor, the inspecting engineer and the designer of the strengthening are the same people. For schools, academy trusts, NHS estates, councils and building owners in Woodley, the engineering inspection and structural assessment end in a written strategy: what is managed, what is monitored, what is strengthened, and in what order. Priced per building; a visual survey alone starts from £395.

The buildings in Woodley this applies to

We know Woodley well: it is a large post-war residential town east of Reading built on the former Woodley aerodrome, with the Headley Road business area, with a town built almost entirely in the post-war decades, so its schools, halls and shopping precinct are of the RAAC period, and around 28,000 residents under Wokingham Borough Council. Ask the RAAC assessment question of any flat-roofed building here that predates the mid 1990s, because that is where RAAC planks were used.

Prioritising buildings in Woodley

Not every building in Woodley needs a RAAC assessment, and we would rather tell you that than sell you one. The ones that do are flat-roofed, date from the 1950s to the mid 1990s, and have never had RAAC confirmed or excluded by scanning. Under Wokingham Borough Council that generally means a town built almost entirely in the post-war decades, so its schools, halls and shopping precinct are of the RAAC period. Ranked by occupancy and by the consequence of a failure, that list usually puts schools, health buildings and places of assembly first, then offices and industrial units.

The assessment report

The assessment is written to be used, not filed. For each panel in the building in Woodley: what it is, what condition it is in, how it classifies against the Institution of Structural Engineers guidance, and what should happen to it. For the building as a whole: the immediate actions, the monitoring position, and the strengthen-or-replace recommendation with its reasoning. Signed by John Staves (CEng FIStructE, MIoD), a chartered structural engineer and one of the UK's leading specialists in RAAC. Where no survey exists yet, we start with the RAAC survey in Woodley.

Turnaround, sign-off and insurance

For a building in Woodley, we can usually be on site in Berkshire within one to two days, and the report follows within five working days of the site visit, depending on the size of the survey and the level of detail required. Every assessment is signed by a Fellow of the Institution of Structural Engineers, which is what trusts, NHS estates, insurers and funders look for. Professional indemnity insurance is held to a maximum of £10 million, with public and employers' liability arranged on a per-site basis. Berkshire, Hampshire, Surrey, Oxfordshire and Buckinghamshire are local to us, and we work across the UK.

Who does the work

Two named specialists, one team

Neil Smuts, MCIOB MInstNDT FRCSP

Survey, scanning and monitoring. President, UK Concrete Scanning Standard

Neil leads the survey, scanning and monitoring side of every Structured Carbon project. He is President of the UK Concrete Scanning Standard, a member of the Chartered Institute of Building and the Institute of NDT, and a Fellow of the Register of Concrete Scanning Professionals. LinkedIn

John Staves, CEng FIStructE MIoD

Structural assessment and CFRP design

John is a chartered structural engineer and one of the UK's leading specialists in RAAC. He carries out the structural assessment and designs every strengthening scheme. John received both the Regional and the National Innovation Award at the HSBC Commercial Banking and Federation of Small Businesses Small Business Growth Awards for his work on RAAC repair. LinkedIn

Meet the team

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One of the team will come back to you within one working day. If it is urgent, call +44 118 430 8430.

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Questions from Woodley

RAAC assessment FAQs

What are the RAAC risk categories?

The Institution of Structural Engineers guidance places each RAAC panel in a risk category based on its condition, bearing, deflection, cracking and exposure to water, from panels needing no immediate action to panels needing action now. The assessment states the category for every panel in the building and what each category requires.

What does a RAAC structural inspection cost?

It is priced per building, because size, access and the level of detail required vary enormously; a large hospital estate and a village hall are not the same job. As a guide, a visual RAAC survey starts from £395. A full engineering inspection of a large or complex building, a hospital for example, is priced per building once we know its size, access and the level of detail required.

Who carries out the RAAC assessment?

John Staves (CEng FIStructE, MIoD), a chartered structural engineer and one of the UK's leading specialists in RAAC. He carries out all of the structural calculations and assessments for Structured Carbon.

Do I need a survey before an assessment?

Yes. The assessment is an engineering judgement on evidence, and the evidence comes from the survey. If your building in Woodley has not been surveyed, we do that first, led by Neil Smuts, and deliver the two together.

Can you assess from someone else's survey?

Sometimes. If an existing survey records what the assessment needs, panel by panel, we can work from it. Where it does not, we will say what is missing rather than assess on thin evidence.

What guidance is the assessment based on?

The current Institution of Structural Engineers guidance on RAAC, which is the reference used across the UK for classifying panels and deciding actions.

Will the assessment tell me to replace the roof?

Only if that is the right answer. Some panels are beyond strengthening and the assessment will say so. Many roofs can be strengthened in place with bespoke CFRP at a fraction of replacement cost, and the assessment sets out whether yours is one of them. Where strengthening is right, it is done with the UK's first CFRP system designed specifically for RAAC, insurer approved and extensively tested.

Found RAAC in a building in Woodley, or waiting on a survey? Send us what you know and a chartered RAAC engineer will tell you what the next step should be.