{"id":19251,"date":"2025-09-12T16:11:38","date_gmt":"2025-09-12T14:11:38","guid":{"rendered":"https:\/\/www.darda.de\/perforated-bricks"},"modified":"2026-04-14T09:44:03","modified_gmt":"2026-04-14T07:44:03","slug":"perforated-bricks","status":"publish","type":"page","link":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks","title":{"rendered":"Perforated bricks"},"content":{"rendered":"<div class=\"wissen-inhaltsbereich\">\n<p>Perforated bricks are widespread in new construction and in existing buildings. They combine low bulk density with good thermal insulation and are used in load-bearing as well as non-load-bearing masonry. For design, execution, repair, and deconstruction, it is crucial to understand how the hole structure influences <strong>load-bearing capacity<\/strong>, <strong>fastening techniques<\/strong>, and the <strong>work method<\/strong>. During conversions or selective demolition, perforated bricks frequently meet reinforced concrete components &#8211; depending on constraints, controlled methods using <em>concrete pulverizers<\/em> or <em><a href=\"https:\/\/www.darda.de\/en\/product-overview\/hydraulic-rock-and-concrete-splitters\">hydraulic rock and concrete splitters<\/a><\/em> may be considered, particularly in the application areas of building gutting, concrete demolition, and special demolition. In practice, the terminology also includes <em>hollow clay bricks<\/em> or <em>perforated clay units<\/em>, which follow the same principles described here.<\/p>\n<h2>Definition: What is meant by perforated bricks?<\/h2>\n<p>Perforated bricks are ceramic masonry units with predominantly vertical cavities. The perforations reduce weight and thermal conductivity, while the load-bearing webs transfer loads. Perforated bricks are typically laid using thin-bed mortar or lightweight mortar and are available in various formats and compressive strength classes. They serve as exterior and interior wall units for load-bearing walls, partition walls, and veneers; they are not reinforced and are often delivered as precision-ground bricks to enable thin joints.<\/p>\n<ul>\n<li><strong>Orientation and void ratio:<\/strong> Cavities are aligned vertically for bearing walls; the share of voids is optimized for thermal and structural performance.<\/li>\n<li><strong>Identification features:<\/strong> Many products carry markings that define the load direction &#8211; rotation by 90 degrees must be avoided in structural applications.<\/li>\n<li><strong>Strength and density:<\/strong> Strength classes and bulk density classes govern permissible loads, anchor selection, and acoustics.<\/li>\n<\/ul>\n<h2>Structure, properties, and typical formats<\/h2>\n<p>The perforation patterns are designed to create air chambers and to align the webs in the directions of load and compression. This results in specific properties: good thermal insulation, moderate sound insulation compared to heavier units, high fire resistance rating, but webs that are more sensitive to concentrated point loads and improper fixings. Typical formats range from handy bricks to large-format precision-ground bricks; the choice influences the number of head joints, installation time, and building physics performance.<\/p>\n<ul>\n<li><strong>Anisotropy:<\/strong> Load paths concentrate in the webs; sawing and drilling must track these webs.<\/li>\n<li><strong>Edge robustness:<\/strong> Arrises and thin webs are impact-sensitive &#8211; low-vibration handling improves quality.<\/li>\n<li><strong>Format effects:<\/strong> Larger units reduce joint proportion and thermal bridges; smaller units ease adjustments in refurbishments.<\/li>\n<\/ul>\n<h2>Properties and use in masonry design<\/h2>\n<p>The combination of perforations, bulk density, and strength class determines where and how perforated bricks are sensibly used. In exterior walls, thermal protection takes priority; in interior walls, structural safety and acoustic requirements do. The perforations lead to anisotropic load-bearing behavior: compressive strength is highest along the perforation axis and lower perpendicular to it. In existing buildings, mixed constructions with reinforced concrete columns, beams, and ring beams are often found.<\/p>\n<ul>\n<li><strong>Application focus:<\/strong> Energy-efficient exterior walls benefit from precision-ground units and thin joints; service cores and high-load zones favor more massive variants.<\/li>\n<li><strong>Interfaces:<\/strong> Connections to reinforced concrete require detailing for restraint, movement, and corrosion-safe ties or connectors.<\/li>\n<li><strong>Moisture management:<\/strong> Plaster systems and joint quality influence vapor diffusion and long-term durability.<\/li>\n<\/ul>\n<h3>Thermal protection and energy efficiency<\/h3>\n<p>The air trapped in the cavities reduces thermal conductivity. In combination with lightweight mortar and narrow bed joints, exterior walls can, depending on the energy target, function without additional insulation layers. Thermal bridges arise primarily at slab bearings, reveals, and mechanical fixings. Careful detailing, such as thermally optimized bearings and well-planned fixing points, is therefore essential.<\/p>\n<ul>\n<li><strong>Typical bridge zones:<\/strong> Slab supports, lintels, ring beams, window and door reveals, balcony connectors, and point fixings.<\/li>\n<li><strong>Mitigation:<\/strong> Thermal break elements, minimized joint thickness, insulating infills at reveals, and anchor solutions with reduced thermal conductivity.<\/li>\n<li><strong>Continuity:<\/strong> Consistent exterior plaster or ETICS where required, with sealed transitions at openings.<\/li>\n<\/ul>\n<h3>Sound insulation and acoustics<\/h3>\n<p>Sound insulation strongly depends on surface mass and web geometry. More massive variants achieve better values, while light insulating bricks excel in thermal performance. For installation chases, depth and width must be limited to avoid weakening sound insulation and the structural capacity of the webs.<\/p>\n<ul>\n<li><strong>Finishes:<\/strong> Dense exterior plasters and multi-layer interior linings improve airborne sound reduction.<\/li>\n<li><strong>Flanking:<\/strong> Connections at slabs, partitions, and fa\u00c3\u00a7ades demand attention to prevent flanking transmission.<\/li>\n<\/ul>\n<h3>Load-bearing capacity and fixings<\/h3>\n<p>The webs must not be overstressed by point loads. Mechanical anchors require suitable setting methods and access to load-bearing webs; chemical anchors demand thorough borehole cleaning and matched mesh sleeves. Static verifications are often required for medium to heavy loads. For high point loads, load-distributing rails or mounting plates offer advantages.<\/p>\n<ul>\n<li><strong>Setting principles:<\/strong> Drill in rotation mode, avoid blow-out of cavities, and clean boreholes systematically.<\/li>\n<li><strong>Distances:<\/strong> Observe minimum edge distances, embedment depths adapted to the web structure, and spacing to reduce group effects.<\/li>\n<li><strong>Proof:<\/strong> Pull-out tests on site and documented approvals for anchors in perforated brick masonry provide reliability for safety-relevant fixings.<\/li>\n<\/ul>\n<h2>Manufacturing, mortars, and joints<\/h2>\n<p>Perforated bricks are made from clayey raw materials that are formed, dried, and fired. The perforations are produced during extrusion. Thin-bed mortar reduces the mortar content and improves building physics parameters. Head joints in precision-ground bricks can be tight or executed with filler profiles. Lightweight mortar is used for leveling layers and for connections to uneven existing surfaces to mitigate thermal bridges.<\/p>\n<ul>\n<li><strong>Mortar selection:<\/strong> Thin-bed mortar for precision-ground units; lightweight or regular masonry mortar for leveling, compensations, and interfaces.<\/li>\n<li><strong>Joint function:<\/strong> Uniform bed joints distribute compressive stresses and enhance shear transfer; vertical joints must be closed consistently to limit convection.<\/li>\n<li><strong>Weathering:<\/strong> Proper curing and protected execution prevent shrinkage cracks and moisture ingress at exposed faces.<\/li>\n<\/ul>\n<h3>Formats and perforation patterns<\/h3>\n<p>Large formats reduce the proportion of joints and installation time but require suitable transport and setting aids. In refurbishments, smaller formats are more flexible, especially when adapting to irregular existing geometries. Perforation patterns range from straight to meandering webs; they influence cutting paths, drilling techniques, and the pull-out values of fixings.<\/p>\n<ul>\n<li><strong>Orientation marks:<\/strong> Follow manufacturer markings for load direction &#8211; do not rotate bricks in structural walls.<\/li>\n<li><strong>Tool paths:<\/strong> Plan saw and drill lines along load-bearing webs wherever feasible to protect the cavity structure.<\/li>\n<\/ul>\n<h3>Joint quality and connection details<\/h3>\n<p>Uniform bed joints contribute significantly to load-bearing capacity. Add-on components such as slabs, lintels, and ring beams must support the thermal and acoustic objectives. At the interface to reinforced concrete elements, restraint and cracking should be avoided by movement joints or defined connection details.<\/p>\n<ul>\n<li><strong>Tolerances:<\/strong> Even joint thickness and flatness are crucial for compressive strength utilization.<\/li>\n<li><strong>Connections:<\/strong> Slotted ties, movement joints, and compressible layers help control restraint and differential movements.<\/li>\n<\/ul>\n<h2>Processing: cutting, drilling, chasing<\/h2>\n<p>Working with perforated bricks requires adapted methods to avoid damaging the webs. For cuts, brick saws or cut-off grinders with low-dust extraction are suitable. For drilling, rotary feed without hammer action is advantageous for precise holes into the webs; for chases, keep them shallow, wide, and away from critical zones such as pier cross-sections. Run installations in joint areas wherever possible to preserve load-bearing webs.<\/p>\n<ul>\n<li><strong>Cutting:<\/strong> Wet cutting or tools with integrated extraction reduce dust and edge spalling.<\/li>\n<li><strong>Drilling:<\/strong> Use centering aids and slow feed to avoid web breakout; select bit geometry for hollow units.<\/li>\n<li><strong>Chasing:<\/strong> Prefer joint corridors; limit depth &#8211; wide and shallow chases preserve webs and acoustics.<\/li>\n<\/ul>\n<h3>Dust and noise protection<\/h3>\n<p>Mineral dust generation requires effective extraction, water supply or wet cutting, appropriate filtration, and personal protective equipment. Low-vibration methods contribute to occupational safety and protect adjacent components.<\/p>\n<ul>\n<li><strong>Engineering controls:<\/strong> Vacuum systems with suitable filter classes, water suppression, and sealed capture at the source.<\/li>\n<li><strong>Operational measures:<\/strong> Time windows for noisy work, monitoring of vibration at sensitive components, and clean work zones to avoid cross-contamination.<\/li>\n<\/ul>\n<h2>Deconstruction of perforated brick masonry<\/h2>\n<p>In selective deconstruction, perforated brick walls are often opened or removed next to reinforced concrete slabs, ring beams, or columns. Because the webs are impact-sensitive, a controlled, low-vibration approach is recommended. For adjacent concrete components, <strong>concrete pulverizers<\/strong> have proven effective, as they crush elements, expose reinforcement, and can replace separation cuts. For more massive masonry sections or foundations in mixed masonry, <strong>stone and concrete splitters<\/strong> can be considered, especially when vibrations and noise must be minimized. <a href=\"https:\/\/www.darda.de\/en\/product-overview\/hydraulic-power-units\">compact hydraulic power units<\/a> provide the required energy for these tools in the confined work environments of building gutting and special demolition.<\/p>\n<ul>\n<li><strong>Preparation:<\/strong> Survey load paths, scan for reinforcement and services, and plan sectioning to avoid unintended load release.<\/li>\n<li><strong>Interface management:<\/strong> Define separation lines to concrete and steel, protect retained components, and control debris fall.<\/li>\n<\/ul>\n<h3>Selective demolition in existing buildings<\/h3>\n<p>The procedure follows the sequence of load transfer. First, identify bearings, lintels, and ring beams. The wall surface is then released section by section. Where reinforced concrete connections are present, concrete pulverizers enable low-damage exposure before the masonry units are manually removed or reduced in size. For thick wall sections and areas with mastic asphalt or natural stone facing, stone and concrete splitters can accelerate removal without introducing impact energy.<\/p>\n<ul>\n<li><strong>Sequencing:<\/strong> Top-down and outside-in for panels; maintain temporary stability at all times.<\/li>\n<li><strong>Protection:<\/strong> Shield finishes and edges to be retained; manage dust with source extraction.<\/li>\n<\/ul>\n<h3>Openings and partial demolition<\/h3>\n<p>For door and window openings, temporary shoring of the masonry above is mandatory. After installing a lintel or beam, the panel is opened step by step. In the immediate vicinity of concrete elements, the use of concrete pulverizers reduces shock effects; the perforated brick masonry is then removed course by course. <em>Cutting paths, dust reduction, and clean separation by material type<\/em> are key objectives.<\/p>\n<ul>\n<li><strong>Shoring:<\/strong> Props, needles, and waling designed and verified for the interim state.<\/li>\n<li><strong>Execution:<\/strong> Pre-cut corners to avoid overbreak; remove units in controllable strips.<\/li>\n<\/ul>\n<h3>Handling mixed structural systems<\/h3>\n<p>In combinations of perforated brick walls with reinforced concrete columns, beams, or slab edges, different tools are required: concrete pulverizers for reinforced concrete, supplemented by <a href=\"https:\/\/www.darda.de\/en\/product-overview\/steel-shears\">steel shears<\/a> or multi-cutters for exposed reinforcement and sections, and hand-held tools for the brick masonry. This minimizes damage to retained components and increases the reuse rate of materials.<\/p>\n<ul>\n<li><strong>Load transfer:<\/strong> Avoid unintended untying of diaphragm actions; maintain bracing until replacements are installed.<\/li>\n<li><strong>Compatibility:<\/strong> Choose methods that preserve bearing faces and reinforcement cover in retained concrete.<\/li>\n<\/ul>\n<h2>Safety, environment, and disposal<\/h2>\n<p>During deconstruction, attention must be paid to stable intermediate states, dust minimization, and noise protection. When cleanly separated, perforated bricks can be recycled as material or used as recycled aggregate. Mortar residues and contaminants must be removed. Legal requirements for waste categories and documentation of proof must be observed; specific requirements may vary regionally.<\/p>\n<ul>\n<li><strong>Pre-demolition audit:<\/strong> Identify reusable units, hazardous substances, and recycling routes.<\/li>\n<li><strong>Sorting:<\/strong> Source-separate ceramic, concrete, metals, wood, and insulation to maximize recovery rates.<\/li>\n<li><strong>Compliance:<\/strong> Keep transport, documentation, and acceptance proofs consistent with local regulations.<\/li>\n<\/ul>\n<h2>Typical mistakes and practical notes<\/h2>\n<p>Common weak points include overly deep chases, inadequately cleaned boreholes for chemical anchors, anchors set in thin webs rather than in load-bearing areas, and missing shoring at openings. In refurbishments, identify ring beams, bearings, and joint patterns early, align cutting and demolition methods accordingly, and keep vibrations low. <strong>Point loads must be distributed<\/strong>, for example via brackets or mounting plates.<\/p>\n<ul>\n<li><strong>Do not rotate structural units:<\/strong> Orientation opposite to the designed load direction compromises capacity.<\/li>\n<li><strong>Validate fixings:<\/strong> Use test loads and approvals suited to perforated units; document settings and torque where relevant.<\/li>\n<li><strong>Protect edges:<\/strong> Avoid impact forces at arrises and web intersections; adopt soft separation methods.<\/li>\n<\/ul>\n<h2>Distinction from other masonry units<\/h2>\n<p>Unlike solid bricks or calcium silicate bricks, the focus with perforated bricks is on thermal protection and low weight. This influences fixing techniques, chase strategies, and demolition methods. For high acoustic or compressive demands, heavier unit types may offer advantages; in energy-efficient exterior wall construction, perforated bricks play to their strengths. Aerated and lightweight aggregate units follow different structural and fixing rules and should not be treated identically to perforated clay units.<\/p>\n<h2>Planning interfaces with equipment and site processes<\/h2>\n<p>For building gutting, selective demolition, and creating openings, a coordinated equipment selection is advisable: concrete pulverizers for working adjacent concrete components, stone and concrete splitters for massive, brittle elements with low vibration, and hydraulic power packs as the energy source. In natural stone extraction and tunnel construction, the principles of controlled splitting are similar, even though perforated bricks do not occur there. The shared goal remains precise, safe, and low-emission work.<\/p>\n<ul>\n<li>Planning: site survey, material analysis, load paths, permits, and method statements<\/li>\n<li>Execution: low-dust separation cuts, sectional release, source-separated sorting, and quality checkpoints<\/li>\n<li>Equipment use: concrete pulverizers for concrete, splitters in addition for brittle elements<\/li>\n<li>Quality: protection of adjacent components, clean edges, controlled vibrations, and documented acceptance of interim states<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Perforated bricks are widespread in new construction and in existing buildings. They combine low bulk density with good thermal insulation and are used in load-bearing as well as non-load-bearing masonry. For design, execution, repair, and deconstruction, it is crucial to understand how the hole structure influences load-bearing capacity, fastening techniques, <a class=\"moretag\" href=\"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks\">read more&#8230;<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"parent":14846,"menu_order":0,"comment_status":"open","ping_status":"open","template":"tmpl\/template-wissen.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-19251","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Perforated Bricks for Masonry - Design &amp; Fixings<\/title>\n<meta name=\"description\" content=\"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal &amp; selective demolition.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Perforated Bricks for Masonry - Design &amp; Fixings\" \/>\n<meta property=\"og:description\" content=\"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal &amp; selective demolition.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks\" \/>\n<meta property=\"og:site_name\" content=\"Darda GmbH\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DardaDemolition\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-14T07:44:03+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\\\/perforated-bricks\",\"url\":\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\\\/perforated-bricks\",\"name\":\"Perforated Bricks for Masonry - Design & Fixings\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#website\"},\"datePublished\":\"2025-09-12T14:11:38+00:00\",\"dateModified\":\"2026-04-14T07:44:03+00:00\",\"description\":\"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal & selective demolition.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\\\/perforated-bricks#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\\\/perforated-bricks\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\\\/perforated-bricks#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.darda.de\\\/en\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Knowledge\",\"item\":\"https:\\\/\\\/www.darda.de\\\/en\\\/knowledge\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Perforated bricks\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#website\",\"url\":\"https:\\\/\\\/www.darda.de\\\/en\",\"name\":\"Darda GmbH\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#organization\"},\"alternateName\":\"Abbruchwerkzeuge\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.darda.de\\\/en?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#organization\",\"name\":\"Darda GmbH\",\"url\":\"https:\\\/\\\/www.darda.de\\\/en\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.darda.de\\\/wp-content\\\/uploads\\\/2017\\\/09\\\/android-icon-192x192-1.png\",\"contentUrl\":\"https:\\\/\\\/www.darda.de\\\/wp-content\\\/uploads\\\/2017\\\/09\\\/android-icon-192x192-1.png\",\"width\":192,\"height\":192,\"caption\":\"Darda GmbH\"},\"image\":{\"@id\":\"https:\\\/\\\/www.darda.de\\\/en#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/DardaDemolition\",\"https:\\\/\\\/www.instagram.com\\\/darda_demolition\",\"https:\\\/\\\/www.youtube.com\\\/user\\\/DardaGmbH\",\"https:\\\/\\\/www.xing.com\\\/pages\\\/darda-gmbh\",\"https:\\\/\\\/de.linkedin.com\\\/company\\\/darda-gmbh\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Perforated Bricks for Masonry - Design & Fixings","description":"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal & selective demolition.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks","og_locale":"en_US","og_type":"article","og_title":"Perforated Bricks for Masonry - Design & Fixings","og_description":"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal & selective demolition.","og_url":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks","og_site_name":"Darda GmbH","article_publisher":"https:\/\/www.facebook.com\/DardaDemolition","article_modified_time":"2026-04-14T07:44:03+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks","url":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks","name":"Perforated Bricks for Masonry - Design & Fixings","isPartOf":{"@id":"https:\/\/www.darda.de\/en#website"},"datePublished":"2025-09-12T14:11:38+00:00","dateModified":"2026-04-14T07:44:03+00:00","description":"Practical guide \u2713 to perforated bricks in masonry - structure, load capacity, fixings, thermal & selective demolition.","breadcrumb":{"@id":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.darda.de\/en\/knowledge\/perforated-bricks#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.darda.de\/en"},{"@type":"ListItem","position":2,"name":"Knowledge","item":"https:\/\/www.darda.de\/en\/knowledge"},{"@type":"ListItem","position":3,"name":"Perforated bricks"}]},{"@type":"WebSite","@id":"https:\/\/www.darda.de\/en#website","url":"https:\/\/www.darda.de\/en","name":"Darda GmbH","description":"","publisher":{"@id":"https:\/\/www.darda.de\/en#organization"},"alternateName":"Abbruchwerkzeuge","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.darda.de\/en?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.darda.de\/en#organization","name":"Darda GmbH","url":"https:\/\/www.darda.de\/en","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.darda.de\/en#\/schema\/logo\/image\/","url":"https:\/\/www.darda.de\/wp-content\/uploads\/2017\/09\/android-icon-192x192-1.png","contentUrl":"https:\/\/www.darda.de\/wp-content\/uploads\/2017\/09\/android-icon-192x192-1.png","width":192,"height":192,"caption":"Darda GmbH"},"image":{"@id":"https:\/\/www.darda.de\/en#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/DardaDemolition","https:\/\/www.instagram.com\/darda_demolition","https:\/\/www.youtube.com\/user\/DardaGmbH","https:\/\/www.xing.com\/pages\/darda-gmbh","https:\/\/de.linkedin.com\/company\/darda-gmbh"]}]}},"_links":{"self":[{"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/pages\/19251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/comments?post=19251"}],"version-history":[{"count":1,"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/pages\/19251\/revisions"}],"predecessor-version":[{"id":26257,"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/pages\/19251\/revisions\/26257"}],"up":[{"embeddable":true,"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/pages\/14846"}],"wp:attachment":[{"href":"https:\/\/www.darda.de\/en\/wp-json\/wp\/v2\/media?parent=19251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}