{"id":9716,"date":"2025-08-13T04:10:48","date_gmt":"2025-08-13T08:10:48","guid":{"rendered":"https:\/\/batisseurs-outremer.com\/?p=9716"},"modified":"2025-08-13T04:10:48","modified_gmt":"2025-08-13T08:10:48","slug":"batiment-les-10-elements-douvrage-les-plus-sinistres-selon-laqc","status":"publish","type":"post","link":"https:\/\/batisseurs-outremer.com\/en\/batiment-les-10-elements-douvrage-les-plus-sinistres-selon-laqc\/","title":{"rendered":"Construction: The 10 Most Frequently Damaged Structural Elements According to the AQC"},"content":{"rendered":"

The 2025 edition of the Construction Quality Observatory, published by the Agence Qualit\u00e9 Construction (AQC), presents a new Sycod\u00e9s report based on an analysis of claims recorded between 2022 and 2024. This report identifies the ten structural elements most affected by defects across all building types\u2014single-family homes, multi-family housing, and commercial spaces. A true technical barometer, this \u201cFlop 10\u201d highlights persistent weaknesses in waterproofing and the management of critical areas, despite advances in methods and materials.<\/strong><\/em><\/p>\n

\u2014<\/p>\n

Single-Family Homes: Roofing and Finishes Take Center Stage<\/strong><\/h2>\n

In terms of headcount, the blanket made of small pieces<\/strong> (tiles, slate, concrete) remains in first place. From 2022 to 2024, 54,7 %<\/strong> The observed defects relate to specific areas (valleys, eaves, ridges), far ahead of wind resistance (12,6 %<\/strong>). As Catherine Labat, head of the Observatories Division at the AQC, points out, \u00abDefects at singular points remain the Achilles\u00bb heel of covers, and addressing them requires expertise that is becoming increasingly scarce in the field.\"<\/em>.<\/p>\n

Second in terms of headcount, the sanitary facilities<\/strong> are on the rise, particularly those related to walk-in showers and water leakage issues. The interior flooring<\/strong> round out the podium, representing 14 %<\/strong> claims reported during the period.<\/p>\n

In terms of cost, internal water supply and drainage systems, as well as underground walls, account for the largest share due to the extensive work they require.<\/p>\n

Multifamily Housing: Increase in Claims Related to Bathroom Fixtures<\/strong><\/h2>\n

In multi-unit housing, the sanitary facilities<\/strong> take the lead in terms of headcount, rising from 5,5 %<\/strong> for 2015\u20132024 at 7,9 %<\/strong> for 2022\u20132024. This increase is attributed to recurring implementation issues, often related to waterproofing problems.<\/p>\n

The heavy facades<\/strong> (concrete, masonry)<\/em> account for 13 % of workforce-related issues and 11 % in terms of cost. The most common causes include defects in joint treatment and increased exposure to the elements in sensitive areas. The interior wall and ceiling coverings<\/strong> are also listed in the Top 10 Failures, with issues related to adhesion defects or material incompatibilities.<\/p>\n

In terms of cost, the roofing made of large metal panels<\/strong> (zinc, steel)<\/em> plays an important role, as repairs often require partial or complete disassembly.<\/p>\n

Commercial Buildings: Lightweight Facades and Roadways Take Center Stage<\/strong><\/h2>\n

For business premises, the lightweight facades<\/strong> rank first in terms of both workforce size and cost. The problems are concentrated at specific points (joints, window surrounds, roof-to-facade connections).<\/em><\/p>\n

The road maintenance<\/strong> ranks second in terms of cost, illustrating the impact of repeated heavy loads and operating conditions on coating wear. The interior flooring<\/strong> round out the top three, with claims that occur less frequently but are often costly when a complete replacement is required.<\/p>\n

Cross-sectional Analysis \u2013 What the Top 10 Flops Reveal<\/strong><\/h2>\n

Beyond the specific characteristics of each type of building, two major observations stand out. First, waterproofing<\/strong> This remains a critical issue, whether it concerns roofing, facades, or interior finishes. Furthermore, the management of specific issues remains a structural weakness, sometimes reflecting a lack of coordination on the construction site.<\/p>\n

As Johan Dutheil, Executive Director of the AQC, points out, \u00abBehind every problem lies a lack of coordination or oversight, and that is often what determines the durability of a structure.\u00bb<\/em>.<\/p>\n

The recurrence of certain issues underscores the importance of continuing education and adapting practices to advances in techniques and materials. For those in the construction industry, this \u201cFlop 10\u201d list serves as a working framework for identifying priority areas for action and optimizing the quality of construction projects.<\/p>\n

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Click here to view The 2025 EDITION of the CONSTRUCTION QUALITY OBSERVATORY by the AQC<\/a><\/strong><\/em><\/p>\n

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L\u2019\u00e9dition 2025 de l\u2019Observatoire de la qualit\u00e9 de la construction, publi\u00e9e par l\u2019Agence Qualit\u00e9 Construction (AQC), livre un nouveau bilan Sycod\u00e9s fond\u00e9 sur l\u2019analyse des sinistres enregistr\u00e9s entre 2022 et 2024. Ce rapport identifie les dix \u00e9l\u00e9ments d\u2019ouvrage les plus touch\u00e9s par des d\u00e9sordres, tous types de b\u00e2timents confondus \u2014 maisons individuelles, logements collectifs et […]<\/p>\n","protected":false},"author":15,"featured_media":9722,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[257],"tags":[2179,2181,2182,2180,746,1873,1571],"class_list":["post-9716","post","type-post","status-publish","format-standard","has-post-thumbnail","category-statistiques","tag-aqc-2025","tag-bilan-sycodes","tag-defauts-construction-france","tag-flop-10-batiment","tag-pathologies-batiment","tag-sinistralite-construction","tag-statistiques-btp"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t