{"id":15153,"date":"2026-10-28T14:17:00","date_gmt":"2026-10-28T14:17:00","guid":{"rendered":"https:\/\/alum-fab.com\/?p=15153"},"modified":"2026-10-28T14:21:26","modified_gmt":"2026-10-28T14:21:26","slug":"alumfab-material-6576d4d43eca40719489439baa5c45af","status":"publish","type":"post","link":"https:\/\/alum-fab.com\/de\/alumfab-material-6576d4d43eca40719489439baa5c45af\/","title":{"rendered":"Safer Homes in the UK: RC Classes, Glass \u201cP\u201d Ratings, and What to Specify for Aluminium Windows &#038; Doors"},"content":{"rendered":"<article>\n<div>\n<div>\n<figure><img decoding=\"async\" alt=\"Concept British home extension with charcoal aluminium frames and glazed patio doors.\" src=\"https:\/\/alum-fab.com\/wp-content\/uploads\/2026\/10\/alumfab-a0ffa7a560677dd27b1d-3.jpg\"><figcaption>AI-generated concept illustration. It does not depict an Alum-Fab project.<\/figcaption><\/figure>\n<p>Security has become a mainstream home-improvement driver in the UK. In the year ending September 2025, the Crime Survey for England and Wales estimated a <strong>20% fall in domestic burglary to 342,000 incidents<\/strong>\u2014still a very large number of break-ins affecting households. <br \/>Against that backdrop, more buyers are searching for <em>aluminium doors UK<\/em>, <em>security-rated aluminium windows<\/em>, and <em>anti-burglar glazing<\/em>\u2014and they\u2019re finding a confusing soup of acronyms: <strong>PAS 24<\/strong>, <strong>Part Q<\/strong>, <strong>RC2\/RC3<\/strong>, <strong>P4A\/P6B<\/strong>, <strong>Secured by Design<\/strong>, plus safety glazing rules under <strong>Approved Document K<\/strong>.<\/p>\n<p>This guide untangles those labels in a UK-ready way, with a practical \u201cwhat to ask for\u201d checklist\u2014especially if you\u2019re looking at <strong>thermally broken aluminium windows<\/strong>, modern <strong>aluminium doors<\/strong>, or <strong>aluminium facade systems<\/strong> for a renovation or new build.<\/p>\n<h2 id=\"section-1\"><strong>1) UK rules first: Building Regulations security is not \u201coptional\u201d for new dwellings<\/strong><\/h2>\n<h3 id=\"section-2\"><strong>England: Part Q (Approved Document Q)<\/strong><\/h3>\n<p>For <strong>new dwellings<\/strong> (including dwellings created by \u201cmaterial change of use\u201d), England\u2019s <strong>Approved Document Q<\/strong> sets the baseline expectation: \u201creasonable provision\u201d must be made to resist unauthorised access. It focuses on <strong>\u201ceasily accessible doors and windows\u201d<\/strong> (definition included in the guidance). <\/p>\n<p>Key points you can safely translate into homeowner language:<\/p>\n<ul>\n<li>Part Q applies to <strong>new dwellings only<\/strong> (and certain conversions), not routine like-for-like replacements in existing homes. <\/li>\n<li>It targets <strong>ground floor\/basement and other \u201ceasily accessible\u201d openings<\/strong> (e.g., within 2 m of accessible ground\/balcony; or near low roofs). <\/li>\n<li>The \u201cdefault\u201d compliance route in the guidance is testing to <strong>PAS 24<\/strong> (with some listed alternatives). <\/li>\n<\/ul>\n<h3 id=\"section-3\"><strong>Wales: Approved Document Q (Wales, 2018 edition)<\/strong><\/h3>\n<p>Wales has its own Approved Document Q (2018), also addressing <strong>easily accessible doors and windows<\/strong>, and additionally includes a <strong>security lighting<\/strong> section. <\/p>\n<h3 id=\"section-4\"><strong>Scotland &amp; Northern Ireland<\/strong><\/h3>\n<p>Security requirements are handled differently in Scotland (via Scottish Building Standards guidance) and Northern Ireland (separate building control regime). If your project is outside England\/Wales, treat Part Q as a <em>useful benchmark<\/em>, but confirm local requirements with your designer\/building control.<\/p>\n<figure><img decoding=\"async\" alt=\"Machining an aluminium profile in a production facility.\" src=\"https:\/\/alum-fab.com\/wp-content\/uploads\/2026\/10\/alumfab-f89668a431fe2fafff45-11.jpg\"><figcaption>Image from the existing Alum-Fab website. Machining an aluminium profile in a production facility.<\/figcaption><\/figure>\n<h2 id=\"section-5\"><strong>2) PAS 24 vs RC classes: what\u2019s the difference and what matters in the UK?<\/strong><\/h2>\n<h3 id=\"section-6\"><strong>PAS 24 (UK) \u2014 the \u201cPart Q language\u201d<\/strong><\/h3>\n<p><strong>Approved Document Q<\/strong> states that secure doorsets and windows should be manufactured to a design shown by test to meet <strong>PAS 24:2012<\/strong> (the edition referenced in the 2015 ADQ), while noting that similar\/better standards may also be acceptable. <br \/>In the real market, PAS 24 has evolved since 2012. Police-backed Secured by Design guidance for doorsets references <strong>PAS 24:2022 + A1:2024<\/strong> as the relevant standard in its product requirements. <\/p>\n<p><strong>Practical takeaway:<\/strong><br \/>If you\u2019re buying <em>aluminium doors UK<\/em> or <em>security-rated aluminium windows<\/em> for a new dwelling (or you want \u201cPart Q level security\u201d in a refurbishment), ask for <strong>PAS 24 test evidence<\/strong> for the <em>exact product configuration<\/em> you\u2019re being offered.<\/p>\n<h3 id=\"section-7\"><strong>RC classes (EN 1627) \u2014 the \u201cEuropean language\u201d<\/strong><\/h3>\n<p>Across Europe, burglary resistance is commonly expressed as <strong>RC classes<\/strong> under <strong>EN 1627<\/strong>, which covers burglar resistance for elements including <strong>pedestrian <\/strong><strong>doorsets<\/strong><strong>, windows, and curtain walling<\/strong>. <br \/>RC classes are helpful when comparing systems (especially for projects that involve <strong>aluminium facades<\/strong> \/ <strong>aluminium fa\u00e7ade systems<\/strong> and international specifications), but for typical UK residential compliance, <strong>PAS 24 remains the most directly legible label<\/strong>.<\/p>\n<h3 id=\"section-8\"><strong>Practical<\/strong><strong> <\/strong><strong>takeaway<\/strong><strong>:<\/strong><\/h3>\n<ul>\n<li>For UK housing, <strong>PAS 24<\/strong> is the clearest \u201cyes\/no\u201d reference for enhanced security performance.<\/li>\n<li><strong>RC2 \/ RC3<\/strong> can be valuable supplementary information, especially when you want a risk-graded approach.<\/li>\n<\/ul>\n<h2 id=\"section-9\"><strong>3) RC class overview (what RC1N\u2013RC6 actually mean for a homeowner)<\/strong><\/h2>\n<p>Manufacturers and test labs use RC classes to represent resistance to progressively more aggressive attempts at forced entry. Keep this high level (and avoid \u201ctool-talk\u201d): the point is <em>risk matching<\/em>, not an arms race.<\/p>\n<ul>\n<li><strong>RC1N \/ RC1<\/strong>: basic deterrence for low-risk situations; typically not what buyers mean by \u201canti-burglar.\u201d<\/li>\n<li><strong>RC2<\/strong>: a common target for dwellings\u2014aimed at stopping casual\/opportunistic attempts at entry for a meaningful period.<\/li>\n<li><strong>RC3<\/strong>: elevated protection for higher-risk homes (isolated properties, easy rear access, repeat incidents, high-value contents).<\/li>\n<li><strong>RC4\u2013RC6<\/strong>: specialist security levels typically seen in commercial\/high-security settings rather than normal housing.<\/li>\n<\/ul>\n<p><strong>Buyer reality:<\/strong> If you see \u201cRC2\u201d on a brochure, ask whether it\u2019s <strong>full system RC2<\/strong> (frame + locking + glazing + installation concept) or something partial (e.g., hardware only).<\/p>\n<h2 id=\"section-10\"><strong>4) Glass security \u201cP\u201d classes (EN 356): the glazing part of the story<\/strong><\/h2>\n<p>Even the best frame and locks can be undermined by weak glazing. That\u2019s where <strong>EN 356<\/strong> \u201cP\u201d ratings come in: they classify <strong>resistance to manual attack<\/strong> for security glazing.<\/p>\n<p>EN 356 splits into two families: <\/p>\n<ul>\n<li><strong>P1A\u2013P5A<\/strong>: tested using a hard-body drop (a steel sphere) to represent blunt impacts; the glass must resist penetration. <\/li>\n<li><strong>P6B\u2013P8B<\/strong>: higher resistance levels involving repeated impacts followed by cutting through the interlayer (a more severe test regime). <\/li>\n<\/ul>\n<h3 id=\"section-11\"><strong>What should a UK homeowner typically target?<\/strong><\/h3>\n<p>For many homes, <strong>P4A<\/strong> is often discussed as a practical \u201csecurity glazing\u201d baseline for vulnerable locations. In some industry guidance, <strong>P4A<\/strong> is explicitly referenced as a typical glazing class used with <strong>RC2<\/strong> windows. <\/p>\n<p><strong>But here\u2019s the critical nuance:<\/strong><br \/>A glazing \u201cP class\u201d is <em>not automatically<\/em> the same thing as a <em>secure window\/door certification<\/em> (PAS 24 or RC2). You want the <strong>complete assembly<\/strong> to be tested\/certified, not just \u201cgood glass in any frame.\u201d<\/p>\n<h2 id=\"section-12\"><strong>5) Don\u2019t confuse \u201csafety glass\u201d with \u201csecurity glass\u201d (UK Approved Document K matters)<\/strong><\/h2>\n<p>UK home safety isn\u2019t only about burglary. Glazing also has to protect occupants from injury in critical impact locations.<\/p>\n<p>Under <strong>Approved Document K (England)<\/strong>, glazing in <strong>critical locations<\/strong> is suitable if it meets specified <strong>BS EN 12600<\/strong> impact-safety classes (e.g., Class 3 generally, or Class 2 for door\/side panel situations with wider panes), or the older BS 6206 equivalents. <\/p>\n<h3 id=\"section-13\"><strong>Why this matters in real specs:<\/strong><\/h3>\n<ul>\n<li>A pane can be <em>impact-safe<\/em> (meets Approved Document K) yet still not be meaningfully <em>burglar-resistant<\/em>.<\/li>\n<li>Conversely, security glazing often ends up being laminated, which can also help with safety performance\u2014but you still want the correct certification for the use case.<\/li>\n<\/ul>\n<p><strong>Good practice request:<\/strong> Ask your supplier\/installer to confirm both:<\/p>\n<ul>\n<li><strong>Impact safety compliance<\/strong> (Approved Document K \/ BS EN 12600), and<\/li>\n<li><strong>Security performance<\/strong> (PAS 24 and\/or RC class + EN 356 glazing class where relevant).<\/li>\n<\/ul>\n<h2 id=\"section-14\"><strong>6) \u201cAnti-burglar\u201d performance is a system outcome (frame + hardware + glass + installation)<\/strong><\/h2>\n<p>A secure product is not \u201cone feature.\u201d It\u2019s a chain, and the chain fails at the weakest link:<\/p>\n<h3 id=\"section-15\"><strong>(a) The frame and thermal break<\/strong><\/h3>\n<p>Modern <em>thermally broken aluminium windows<\/em> and doors can be both energy efficient and highly secure. The thermal break is about insulation, but aluminium\u2019s inherent rigidity helps engineers build robust corner joints and stable lock engagement\u2014especially important for larger formats and minimal-sightline designs.<\/p>\n<h3 id=\"section-16\"><strong>(b) Hardware and locking<\/strong><\/h3>\n<p>You\u2019ll see terms like multi-point locking, hinge protection, security cylinders, and lock standards. Approved Document Q is explicit that openings need to be <strong>robust<\/strong> and fitted with <strong>appropriate hardware<\/strong>. <br \/>For doors, this is particularly relevant to:<\/p>\n<ul>\n<li>the quality of the locking system,<\/li>\n<li>the cylinder and handle set,<\/li>\n<li>hinge-side protection,<\/li>\n<li>the integrity of the threshold and keeps.<\/li>\n<\/ul>\n<h3 id=\"section-17\"><strong>(c) Glazing retention and bead security<\/strong><\/h3>\n<p>A surprising number of failures in the real world come from poor glazing retention detail or incorrect installation. This is another reason to prefer <strong>PAS 24 certification<\/strong>, because it tests the <em>assembly<\/em> rather than trusting that components will \u201cadd up.\u201d<\/p>\n<h3 id=\"section-18\"><strong>(d) Installation (often the real failure point)<\/strong><\/h3>\n<p>Approved Document Q requires window frames be <strong>mechanically fixed to the structure<\/strong> in accordance with manufacturer installation instructions. <br \/>A security-rated product installed badly is no longer security-rated in practice.<\/p>\n<h2 id=\"section-19\"><strong>7) Security for aluminium doors UK buyers: what to specify by door type<\/strong><\/h2>\n<h3 id=\"section-20\"><strong>Front entrance doors (single or double)<\/strong><\/h3>\n<p>For most UK homes:<\/p>\n<ul>\n<li>Target <strong>PAS 24<\/strong> (latest edition available from the supplier) for the doorset. <\/li>\n<li>Confirm safety glazing where relevant (Approved Document K). <\/li>\n<li>If you want a rating \u201cladder,\u201d consider RC2\/RC3 equivalents for higher-risk contexts (ask for certification evidence).<\/li>\n<\/ul>\n<h3 id=\"section-21\"><strong>Patio sliders \/ lift-and-slide<\/strong><\/h3>\n<p>Sliding doors are often large and heavily glazed\u2014excellent for daylight, but they demand correct specification and installation discipline. Ask specifically:<\/p>\n<ul>\n<li>Is the <strong>exact slider configuration<\/strong> tested\/certified (not just \u201cthe system family\u201d)?<\/li>\n<li>What\u2019s the glazing class (EN 356) on vulnerable elevations?<\/li>\n<\/ul>\n<h3 id=\"section-22\"><strong>Secondary doors (side\/rear)<\/strong><\/h3>\n<p>Rear access is a common homeowner concern. Treat these doors as \u201cfront door important\u201d in spec terms\u2014especially if they\u2019re easily accessible.<\/p>\n<h2 id=\"section-23\"><strong>8) Security for aluminium windows: ground floor, basements, rooflights, and \u201ceasy access\u201d logic<\/strong><\/h2>\n<p>Approved Document Q is very clear that security attention goes to <strong>ground floor, basement and other easily accessible windows<\/strong>, including rooflights. <br \/>So your security priorities should follow the building geometry:<\/p>\n<ul>\n<li><strong>Ground floor &amp; basement<\/strong>: strongest spec focus.<\/li>\n<li><strong>Near flat\/low-pitch roofs<\/strong>: treat as accessible. <\/li>\n<li><strong>Upper floors<\/strong>: still consider safety glazing and child safety (different topic), but burglary resistance is typically prioritised lower unless there\u2019s unusual access.<\/li>\n<\/ul>\n<h2 id=\"section-24\"><strong>9) Aluminium facade systems and apartment blocks: what changes?<\/strong><\/h2>\n<p>If you\u2019re looking at <strong>aluminium facade systems<\/strong> (stick curtain walling, unitised curtain walling, or rainscreen with integrated windows\/doors), the project often sits between \u201cresidential\u201d and \u201ccommercial\u201d security approaches.<\/p>\n<p>Approved Document Q itself lists alternative standards that can be used to demonstrate similar\/better performance than PAS 24, including <strong>LPS 1175<\/strong> and other schemes. <br \/>In practice:<\/p>\n<ul>\n<li>Ground floor fa\u00e7ades, communal entrances, and doorsets may require higher assurance.<\/li>\n<li>Certification routes may involve LPCB\/LPS schemes on some projects.<\/li>\n<\/ul>\n<h2 id=\"section-25\"><strong>10) UK buyer\u2019s checklist (copy\/paste this into your email to suppliers)<\/strong><\/h2>\n<p>Use this when contacting an <strong>aluminium window manufacturer<\/strong>, an <strong>aluminium door manufacturer<\/strong>, or an installer:<\/p>\n<h3 id=\"section-26\"><strong>Copy\/paste template:<\/strong><\/h3>\n<p>Please confirm the security and safety performance of the proposed aluminium windows\/doors (include the exact system, hardware set, glazing build-up and opening sizes):<\/p>\n<ul>\n<li>Security: evidence of testing\/certification to PAS 24 (current edition) for the complete doorset\/windows assembly (or an accepted equivalent).<\/li>\n<li>If available, provide RC class certification to EN 1627 for the same configuration.<\/li>\n<li>Glazing: confirm EN 356 \u201cP\u201d class where security glazing is proposed (e.g., P4A or higher as applicable).<\/li>\n<li>Safety glazing: confirm compliance with Approved Document K \/ BS EN 12600 for critical locations.<\/li>\n<li>Installation: confirm mechanical fixing method and that installation follows the certified\/tested configuration and manufacturer instructions.<\/li>\n<\/ul>\n<p>This single message forces clarity and filters out vague marketing.<\/p>\n<h2 id=\"section-27\"><strong>11) Where Alum-Fab fits in a security-focused procurement<\/strong><\/h2>\n<p>If you\u2019re sourcing internationally or working with fa\u00e7ade contractors, it helps to choose a partner that understands system compliance and correct assembly. Alum-Fab describes itself as providing <strong><a href=\"https:\/\/alum-fab.com\/de\/offer\/\">professional production management and assembly of aluminium systems<\/a><\/strong>, with capability across <strong>windows &amp; doors<\/strong>, <strong>stick curtain walling<\/strong>, <strong>unitised curtain walling<\/strong>, and <strong>rainscreen cladding<\/strong>, including fabrication of major system houses (e.g., Sch\u00fcco, Aluprof, Reynaers, Hydro\/Wicona) depending on project needs. <br \/>On the doors side, Alum-Fab states its doors are manufactured using system solutions from well-known manufacturers and can be specified with brand hardware and optional access control features (e.g., fingerprint reader\/remote control), which can form part of an overall home security strategy when correctly designed and installed. <\/p>\n<p>(As always: ask for the actual certificates for the exact configuration you\u2019re buying.)<\/p>\n<h2 id=\"section-28\"><strong>12) Bottom line: what \u201cgood\u201d looks like for most UK homes<\/strong><\/h2>\n<p>For a typical UK home aiming for meaningful burglary deterrence without going overboard:<\/p>\n<ul>\n<li><strong>Doors and easily accessible windows<\/strong>: prioritise <strong>PAS 24-tested assemblies<\/strong> (current edition evidence), aligned with the Part Q logic for \u201ceasy access.\u201d <\/li>\n<li><strong>Glazing<\/strong>: use <strong>EN 356 P-class<\/strong> intelligently (often P4A as a practical baseline in vulnerable locations, higher if risk demands), but never as a substitute for assembly certification. <\/li>\n<li><strong>Safety<\/strong>: don\u2019t forget <strong>Approved Document K \/ BS EN 12600<\/strong> for critical impact locations\u2014security and safety are different requirements. <\/li>\n<li><strong>Installation<\/strong>: insist on correct mechanical fixing and adherence to the tested\/certified configuration.<\/li>\n<\/ul>\n<p>For a fa\u00e7ade contractor, a useful next step is to <a href=\"https:\/\/alum-fab.com\/de\/contact\/\">share the window and door schedule with Alum-Fab<\/a> and agree the aluminium fabrication and assembly scope against the specified system. The exact test evidence, hardware and installation details should travel with that brief; a familiar system-house name alone does not establish the security rating of the completed assembly.<\/p>\n<\/div>\n<\/div>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>AI-generated concept illustration. It does not depict an Alum-Fab project. Security has become a mainstream home-improvement driver in the UK.<\/p>","protected":false},"author":120,"featured_media":15151,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[110,98,109,111,122,114],"class_list":["post-15153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-aluminium-doors","tag-aluminium-facades","tag-aluminium-windows","tag-curtain-walling","tag-security-glazing","tag-unitised-curtain-walling"],"_links":{"self":[{"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/posts\/15153"}],"collection":[{"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/users\/120"}],"replies":[{"embeddable":true,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/comments?post=15153"}],"version-history":[{"count":1,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/posts\/15153\/revisions"}],"predecessor-version":[{"id":15154,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/posts\/15153\/revisions\/15154"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/media\/15151"}],"wp:attachment":[{"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/media?parent=15153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/categories?post=15153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alum-fab.com\/de\/wp-json\/wp\/v2\/tags?post=15153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}