RAAC roof replacement: the process, and the alternative
Replacing a RAAC roof takes the building, or part of it, out of use while the old roof comes off and a new one goes on. For some roofs that is right. For many, the planks can be kept and strengthened in place for a fraction of the cost.
- Replacement explained step by step
- Strengthening as the alternative
- An engineer's view of your roof, not a product
How a RAAC roof is replaced
The building is made safe, the area is decanted, the coverings and services are stripped out, the RAAC planks are cut out and removed, and a new deck is designed, built, waterproofed and finished. The building can be used again only once the new roof is complete.
When replacement is right
Where planks are beyond strengthening, or a building is being rebuilt for other reasons, replacement can be the right call. The survey and assessment tell you which planks are which, so replacement can be limited to the planks that need it.
When strengthening is the better route
Where the assessment shows the planks can be kept, bespoke CFRP strengthens them in place, with the building open. 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.
See how the two routes compare for the people who use the building in our guide to RAAC remediation versus replacement.
Roof replacement,answered
Does a RAAC roof have to be replaced?
What does RAAC roof replacement cost?
Talk tothe people who do the work
Tell us what you know about the building and what has been found so far. A RAAC surveyor and a chartered structural engineer read every enquiry.
- Phone+44 118 430 8430
- Email[email protected]
- Base6 Ivanhoe Road, Hogwood Industrial Estate, Finchampstead, Wokingham, RG40 4QQ
Thank you, that is with us.
We reply within one working day. If it is urgent, call +44 118 430 8430.