Comments on: Misinformation about RAAC could do more damage than good https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/ Civil engineering and construction news and jobs from New Civil Engineer Thu, 07 Mar 2024 10:07:50 +0000 hourly 1 https://wordpress.org/?v=6.0 https://www.newcivilengineer.com/wp-content/themes/mbm-mops-2017/images/logo.gif New Civil Engineer https://www.newcivilengineer.com 125 75 Civil engineering and construction news and jobs from New Civil Engineer By: Richard Henley https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4708 Thu, 07 Mar 2024 10:07:50 +0000 https://www.newcivilengineer.com/?p=275213#comment-4708 “Poor understanding by decision makers” – in my experience this could appear to the case too many times. Why? Is it an inevitability. Could those who would like to help improve informed decision making be on a “fools errand”?

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By: Richard Henley https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4707 Thu, 07 Mar 2024 10:07:07 +0000 https://www.newcivilengineer.com/?p=275213#comment-4707 In reply to Anon Anon.

“Poor understanding by decision makers” – in my experience this could appear to the case too many times. Why? Is it an inevitability. Could those who would like to help improve informed decision making be on a “fools errand”?

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By: Billy Brand https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4706 Thu, 07 Mar 2024 09:18:01 +0000 https://www.newcivilengineer.com/?p=275213#comment-4706 In reply to Neil Gardner.

Thanks Neil.

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By: Anon Anon https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4705 Wed, 06 Mar 2024 12:46:39 +0000 https://www.newcivilengineer.com/?p=275213#comment-4705 As a consultant who has been assessing many RAAC roofs (to the IStructE latest guidance) and designing RAAC remediation schemes for the last few years:

1. Condition is not the most critical factor for the sudden failure encountered in 2018 – the adequacy of reinforcement anchorage at the end bearing is.

2. The DfE have decided that all RAAC roofs should be replaced. This is despite in many cases that they have been made structurally redundant since 2019. This has typically been achieved by installing a full supporting deck beneath the RAAC, such that the RAAC is not required to have any strength at all and is totally redundant. This is clearly a waste of scarce taxes which could be better used on the many other maintenance backlog items within the school estate, driven by a poor understanding of the issues by decision makers.

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By: Neil Gardner https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4703 Wed, 06 Mar 2024 11:14:18 +0000 https://www.newcivilengineer.com/?p=275213#comment-4703 Thank you Billy, an excellent and informative article.

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By: Billy Brand https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4702 Wed, 06 Mar 2024 10:15:02 +0000 https://www.newcivilengineer.com/?p=275213#comment-4702 In reply to Richard Henley.

Thank you for your comment, Richard. I agree with your points. My argument is that there are buildings that are hundreds of years old constructed out of many different materials which are still performing adequately, whereas some buildings are inherently dangerous as soon as they are completed due to poor design or construction. This is why we need to review on a case-by-case basis so we (a) ensure safety of building users but also (b) not unecessarily evacuate or demolish what may be perfectly adequate structures.

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By: Richard Henley https://www.newcivilengineer.com/latest/misinformation-about-raac-could-do-more-damage-than-good-05-03-2024/#comment-4700 Wed, 06 Mar 2024 10:09:08 +0000 https://www.newcivilengineer.com/?p=275213#comment-4700 A good point well made.
I have been reflecting, since this RAAC panels matter first came to public notice, where to 30 year lifespan came from.
Perhaps it has become a surrogate for the possibility of degradation becoming structurally critical tends to come to light around 30 years after original manufacture.
This of course is a matter for the use of all new building materials that have only been in use for a few decades.

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