
{"id":405,"date":"2020-07-22T12:42:00","date_gmt":"2020-07-22T12:42:00","guid":{"rendered":"https:\/\/blog.proclima.com\/int\/?p=405"},"modified":"2025-10-16T06:00:52","modified_gmt":"2025-10-16T06:00:52","slug":"8-old-floor-joists-in-refurbishment-projects","status":"publish","type":"post","link":"https:\/\/blog.proclima.com\/int\/2020\/07\/22\/8-old-floor-joists-in-refurbishment-projects\/","title":{"rendered":"Intelligent, effective solutions for joints&nbsp;(8\/8) \u2013 Old floor joists in refurbishment projects"},"content":{"rendered":"\n<p><em><em>Continuation of Part<\/em><\/em> 7<em>: <a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/15\/7-particular-challenges-on-refurbishment-projects\/\">Particular challenges on refurbishment projects<\/a><\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Old floor joists in refurbishment projects \/penetrations of masonry\/joists<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-gallery aligncenter has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/anschluss-mauerwerk-sanierung-2.jpg\"><img decoding=\"async\" data-id=\"8664\" src=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/anschluss-mauerwerk-sanierung-2.jpg\" alt=\"\" class=\"wp-image-8664\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/anschluss-mauerwerk-sanierung.jpg\"><img decoding=\"async\" data-id=\"8665\" src=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/anschluss-mauerwerk-sanierung.jpg\" alt=\"\" class=\"wp-image-8665\" \/><\/a><\/figure>\n<figcaption class=\"blocks-gallery-caption wp-element-caption\">Professional sealing of joist penetrations with wide adhesive tape that can be used both on timber and on mineral subsurfaces \u2013 and don\u2019t forget to pretreat the surfaces!<br>Copyright: Harry Paticas\/arborealarchitecture.com<\/figcaption><\/figure>\n\n\n\n<p>Typical leaks can be found at the joist bearings of timber roof joists in the masonry structure. The bricks between the joists are generally not plastered. On refurbishment projects, joints with the old masonry can lead to leaks; on new buildings, non-mortared butt joints between bricks can cause leaks. Even if a layer of plaster has been applied, airtight joints to the joists are generally neglected. This is indicated by air currents through the joints between old wooden floorboards detected during blower door tests.<\/p>\n\n\n\n<p class=\"has-light-gray-background-color has-background\">This series of articles summarises typical, challenging joint situations and shows how technicians can find practical solutions for these challenges. It also provides an overview of the detail features for which prefabricated solutions are available that allow tradespeople to achieve airtightness in a quick, easy and reliable manner.<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/luftstroemung-dielen-altbau.jpg\" alt=\"\" class=\"wp-image-8670\" \/><figcaption class=\"wp-element-caption\">Air entry through the joints of these old wooden floorboards is indicated by the bulging of this sheeting during a blower door test. The causes of this problem are joist penetrations in the floor area and\/or unplastered masonry areas.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Summary: detail features are becoming more sophisticated<\/strong><\/h2>\n\n\n\n<p>A good, careful tradesperson can still find a solution for all situations using adhesive tape and adhesive from a tube. Prefabricated elements provide planning certainty and guarantee quick, cost-effective installation.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/Tabelle_Details_Loesungen.pdf\"><img loading=\"lazy\" decoding=\"async\" width=\"724\" height=\"1024\" data-size=\"1654x2339\" src=\"https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-724x1024.png\" alt=\"\" class=\"wp-image-484\" srcset=\"https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-724x1024.png 724w, https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-212x300.png 212w, https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-768x1086.png 768w, https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-1086x1536.png 1086w, https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN-1448x2048.png 1448w, https:\/\/blog.proclima.com\/int\/files\/2020\/06\/Bauanleitung_Anschluesse_einzeln_1.4_EN.png 1654w\" sizes=\"auto, (max-width: 724px) 100vw, 724px\" \/><\/a><figcaption class=\"wp-element-caption\">Prefabricated solutions and solutions implemented by tradespeople for joints on new buildings and refurbishment projects.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Overview of the series<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/06\/03\/1-typical-leaks-cable-feed-throughs-for-electrical-installations\/\">Typical leaks: cable feed-throughs for electrical<\/a> (released on June 3rd 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/06\/10\/2-the-challenge-sealing-cable-looms\/\">The challenge: sealing cable looms<\/a> (released on June 10th 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/06\/17\/3-the-challenge-cables-passing-underneath-joists\/\">The challenge: cables passing underneath joists<\/a> (released on June 17th 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/06\/24\/4-the-challenge-pipe-feed-throughs\/\">The challenge: pipe feed-throughs<\/a> (released on June 24th 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/01\/5-care-required-at-the-corners-of-plastic-windows\/\">Care required at the corners of plastic windows<\/a> (released on July 1 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/08\/6-problem-with-skylights-adhesive-bonds-at-corners\/\">Problem with skylights: adhesive bonds at corners<\/a> (released on July 8th 2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/de\/2020\/05\/anschlusse-clever-loesen-sanierung\/\">Particular challenges on refurbishment <\/a><a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/15\/7-particular-challenges-on-refurbishment-projects\/\">p<\/a><a href=\"https:\/\/blog.proclima.com\/de\/2020\/05\/anschlusse-clever-loesen-sanierung\/\">rojects<\/a> (released on July  15th  2020)<\/li>\n\n\n\n<li><a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/22\/8-old-floor-joists-in-refurbishment-projects\/\">Old floor joists in refurbishment projects<\/a> (released on July 22th 2020)<\/li>\n<\/ol>\n\n\n\n<div class=\"wp-block-group has-light-gray-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">This Series was written by Jens L\u00fcder Herms and Holger Merkel<\/h2>\n\n\n\n<div class=\"wp-block-media-text alignwide\" style=\"grid-template-columns:22% auto\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/Jens-Lueder-Herms.jpg\" alt=\"Jens L\u00fcder Herms, Zimmerer &amp; Diplom-Ingenieur (FH), Exportmanager und Anwendungstechniker\" class=\"wp-image-8539 size-full\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>Jens L\u00fcder Herms, carpenter and graduate engineer, Export Manager and Application Technology specialist, pro clima Research and Development,, <a href=\"https:\/\/www.proclima.de\">www.proclima.de<\/a>. He provides insights into his work on <a href=\"https:\/\/twitter.com\/luederHerms\">Twitter<\/a> and <a href=\"https:\/\/www.instagram.com\/jens.lueder.herms\/\">Instagram<\/a>.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right\" style=\"grid-template-columns:auto 22%\"><div class=\"wp-block-media-text__content\">\n<p>Holger Merkel, Blower-Door-Messdienstleister, Holger Merkel, provider of blower door measurement services, speaker at the pro clima <a href=\"https:\/\/kaenguru.me\/\">Knowledge Lab<\/a> and instructor for certification courses.. He has documented examples of leaks in his most recent project <a href=\"https:\/\/www.zieht-wie-hechtsupp.de\/\">www.zieht-wie-hechtsupp.de<\/a>. He also publishes specialist articles on issues such as blower door tests on <a href=\"https:\/\/www.airtight-junkies.de\/\">www.airtight-junkies.de<\/a>.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"https:\/\/blog.proclima.com\/de\/files\/2020\/04\/Holger-Merkel.jpg\" alt=\"Holger Merkel, Blower-Door-Messdienstleister, Referent der pro clima Wissenwerkstatt und Leiter von Zertifizierungskursen\" class=\"wp-image-8540 size-full\" \/><\/figure><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Continuation of Part 7: Particular challenges on refurbishment projects Old floor joists in refurbishment projects \/penetrations of masonry\/joists Typical leaks can be found at the <a href=\"https:\/\/blog.proclima.com\/int\/2020\/07\/22\/8-old-floor-joists-in-refurbishment-projects\/\" rel=\"bookmark\">&#8230;<\/a><\/p>\n","protected":false},"author":37,"featured_media":411,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[12,115],"class_list":["post-405","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pro-clima","tag-airtightness","tag-airtightness-sealing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Intelligent, effective solutions for joints (8\/8) \u2013 Old floor joists in refurbishment projects<\/title>\n<meta name=\"description\" content=\"Typical leaks can be found at the joist bearings of timber roof joists in the masonry structure. 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Er organisiert gr\u00f6\u00dfere Event und Messen von pro clima, wie die internationale BAU in M\u00fcnchen und Schulungstouren. Dabei k\u00fcmmert er sich auch um die Veranstaltungstechnik. Daniel ist auch Teil des Digital Teams. Er ist u.a. Moderator bei den Online-Seminaren der pro clima Wissenswerkstatt, filmt und produziert bei Events und unterst\u00fctzt die Social Media Auftritte.\u00a0 In seiner Freizeit organisiert er Camps f\u00fcr Jugendliche und Treffen, bei denen Jugendliche gest\u00e4rkt werden.\",\"url\":\"https:\\\/\\\/blog.proclima.com\\\/int\\\/author\\\/daniellaubscher\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Intelligent, effective solutions for joints (8\/8) \u2013 Old floor joists in refurbishment projects","description":"Typical leaks can be found at the joist bearings of timber roof joists in the masonry structure. 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