{"id":3637,"date":"2026-02-05T10:18:43","date_gmt":"2026-02-05T10:18:43","guid":{"rendered":"https:\/\/www.ressatech.com\/?p=3637"},"modified":"2026-02-05T10:32:34","modified_gmt":"2026-02-05T10:32:34","slug":"surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation","status":"publish","type":"post","link":"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/","title":{"rendered":"Surface-Mounted vs. Mortised: Which Automatic Drop-Down Seal is Right for Your Office Renovation?"},"content":{"rendered":"<div class=\"row\"  id=\"row-627790277\">\n\n\t<div id=\"col-1247940036\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2058945036\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"574\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-1024x576.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-1024x576.jpg 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-510x287.jpg 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-300x169.jpg 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-768x432.jpg 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-1536x864.jpg 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic-18x10.jpg 18w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.28-Concealed-Installation-Schematic.jpg 1920w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_2058945036 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-370074180\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1950473464\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"574\" src=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-1024x576.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-1024x576.jpg 1024w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-510x287.jpg 510w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-300x169.jpg 300w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-768x432.jpg 768w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-1536x864.jpg 1536w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation-18x10.jpg 18w, https:\/\/www.ressatech.com\/wp-content\/uploads\/2026\/02\/07.27-Schematic-diagrams-for-semi-concealed-installation-and-surface-installation.jpg 1920w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1950473464 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p data-path-to-node=\"8\" data-imt-p=\"1\">In a bustling office environment, privacy and safety are paramount. Whether it\u2019s keeping a confidential meeting private or meeting strict fire safety codes, the gap at the bottom of your door is your weakest link.<\/p>\n<p data-path-to-node=\"9\" data-imt-p=\"1\">Enter the <b data-path-to-node=\"9\" data-index-in-node=\"10\">Automatic Drop-Down Bottom Seal<\/b>. But when it comes to an office renovation, you face a critical choice: <b data-path-to-node=\"9\" data-index-in-node=\"114\">Surface-Mounted (Face-Fixed)<\/b> or <b data-path-to-node=\"9\" data-index-in-node=\"146\">Mortised (Concealed)<\/b>?<\/p>\n<p data-path-to-node=\"10\" data-imt-p=\"1\">Choosing the wrong one could mean a ruined aesthetic or an expensive installation mistake. Let\u2019s break down which one is the perfect fit for your workspace.<\/p>\n<hr data-path-to-node=\"11\" \/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/#Mortised_Seals_The_Concealed_Powerhouse\" >Mortised Seals (The Concealed Powerhouse)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/#Surface-Mounted_Seals_The_Retrofit_Hero\" >Surface-Mounted Seals (The Retrofit Hero)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/#Head-to-Head_Comparison\" >Head-to-Head Comparison<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/#The_%E2%80%9CFire_Protection_Solution%E2%80%9D_Factor\" >The &#8220;Fire Protection Solution&#8221; Factor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/#Conclusion_Which_should_you_choose\" >Conclusion: Which should you choose?<\/a><\/li><\/ul><\/nav><\/div>\n<h3 data-path-to-node=\"12\"><span class=\"ez-toc-section\" id=\"Mortised_Seals_The_Concealed_Powerhouse\"><\/span><b data-path-to-node=\"12\" data-index-in-node=\"0\" data-imt-p=\"1\">Mortised Seals (The Concealed Powerhouse)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"13\" data-imt-p=\"1\">A <b data-path-to-node=\"13\" data-index-in-node=\"2\">Mortised Automatic Drop-Down Seal<\/b> is installed into a groove (mortise) cut into the bottom of the door leaf. When the door is closed, it\u2019s completely invisible.<\/p>\n<ul data-path-to-node=\"14\">\n<li>\n<p data-path-to-node=\"14,0,0\"><b data-path-to-node=\"14,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Pros:<\/b><\/p>\n<ul data-path-to-node=\"14,0,1\">\n<li>\n<p data-path-to-node=\"14,0,1,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,0,1,0,0\" data-index-in-node=\"0\">Seamless Aesthetics:<\/b> Since it\u2019s hidden inside the door, it doesn&#8217;t interfere with the office&#8217;s interior design. Perfect for high-end executive suites.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,0,1,1,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,0,1,1,0\" data-index-in-node=\"0\">Superior Durability:<\/b> Being encased in the door protects the mechanism from kicks, carts, and vacuum cleaners.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,0,1,2,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,0,1,2,0\" data-index-in-node=\"0\">Maximum Performance:<\/b> Often provides the best acoustic (soundproofing) and fire protection ratings.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"14,1,0\"><b data-path-to-node=\"14,1,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Cons:<\/b><\/p>\n<ul data-path-to-node=\"14,1,1\">\n<li>\n<p data-path-to-node=\"14,1,1,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,1,1,0,0\" data-index-in-node=\"0\">Complex Installation:<\/b> Requires the door to be removed and a channel to be professionally routed out.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,1,1,1,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,1,1,1,0\" data-index-in-node=\"0\">Cost:<\/b> Higher labor costs due to the precision required.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"14,2,0\" data-imt-p=\"1\"><b data-path-to-node=\"14,2,0\" data-index-in-node=\"0\">Best For:<\/b> New office fit-outs or high-end renovations where the doors can be sent to a workshop.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"15\" \/>\n<h3 data-path-to-node=\"16\"><span class=\"ez-toc-section\" id=\"Surface-Mounted_Seals_The_Retrofit_Hero\"><\/span><b data-path-to-node=\"16\" data-index-in-node=\"0\" data-imt-p=\"1\">Surface-Mounted Seals (The Retrofit Hero)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"17\" data-imt-p=\"1\">A <b data-path-to-node=\"17\" data-index-in-node=\"2\">Surface-Mounted Seal<\/b> is fixed directly onto the face of the door (usually the pull-side) using a decorative aluminum housing.<\/p>\n<ul data-path-to-node=\"18\">\n<li>\n<p data-path-to-node=\"18,0,0\"><b data-path-to-node=\"18,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Pros:<\/b><\/p>\n<ul data-path-to-node=\"18,0,1\">\n<li>\n<p data-path-to-node=\"18,0,1,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,0,1,0,0\" data-index-in-node=\"0\">Easy Retrofit:<\/b> No need to remove the door or carve into it. It can be installed in minutes while the door is on its hinges.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,0,1,1,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,0,1,1,0\" data-index-in-node=\"0\">Cost-Effective:<\/b> Significantly lower labor costs, making it ideal for large-scale office upgrades.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,0,1,2,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,0,1,2,0\" data-index-in-node=\"0\">Versatility:<\/b> Can be used on almost any existing door, including metal or glass-framed doors where routing isn&#8217;t an option.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"18,1,0\"><b data-path-to-node=\"18,1,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Cons:<\/b><\/p>\n<ul data-path-to-node=\"18,1,1\">\n<li>\n<p data-path-to-node=\"18,1,1,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,1,1,0,0\" data-index-in-node=\"0\">Visible Hardware:<\/b> The aluminum casing is visible on the door face (though finishes like silver, black, or bronze can help it blend in).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,1,1,1,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,1,1,1,0\" data-index-in-node=\"0\">Exposure:<\/b> Because it sits on the outside, it\u2019s more prone to accidental bumps in high-traffic hallways.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"18,2,0\" data-imt-p=\"1\"><b data-path-to-node=\"18,2,0\" data-index-in-node=\"0\">Best For:<\/b> Active offices that need a quick upgrade without disrupting daily operations, or historical buildings where doors shouldn&#8217;t be altered.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"19\" \/>\n<h3 data-path-to-node=\"20\"><span class=\"ez-toc-section\" id=\"Head-to-Head_Comparison\"><\/span><b data-path-to-node=\"20\" data-index-in-node=\"0\" data-imt-p=\"1\">Head-to-Head Comparison<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table data-path-to-node=\"21\">\n<thead>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>Mortised (Embedded)<\/strong><\/td>\n<td><strong>Surface-Mounted (Face-Fixed)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"21,1,0,0\"><b data-path-to-node=\"21,1,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Aesthetics<\/b><\/span><\/td>\n<td><span data-path-to-node=\"21,1,1,0\" data-imt-p=\"1\">Invisible \/ Sleek<\/span><\/td>\n<td><span data-path-to-node=\"21,1,2,0\" data-imt-p=\"1\">Visible (Industrial\/Functional)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"21,2,0,0\"><b data-path-to-node=\"21,2,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Ease of Install<\/b><\/span><\/td>\n<td><span data-path-to-node=\"21,2,1,0\" data-imt-p=\"1\">Requires professional routing<\/span><\/td>\n<td><span data-path-to-node=\"21,2,2,0\" data-imt-p=\"1\">DIY \/ Quick install<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"21,3,0,0\"><b data-path-to-node=\"21,3,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Acoustic Seal<\/b><\/span><\/td>\n<td><span data-path-to-node=\"21,3,1,0\" data-imt-p=\"1\">Excellent (up to 44dB+)<\/span><\/td>\n<td><span data-path-to-node=\"21,3,2,0\" data-imt-p=\"1\">Very Good<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"21,4,0,0\"><b data-path-to-node=\"21,4,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Fire Protection<\/b><\/span><\/td>\n<td><span data-path-to-node=\"21,4,1,0\" data-imt-p=\"1\">Integral part of the door<\/span><\/td>\n<td><span data-path-to-node=\"21,4,2,0\" data-imt-p=\"1\">Added secondary protection<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"21,5,0,0\"><b data-path-to-node=\"21,5,0,0\" data-index-in-node=\"0\" data-imt-p=\"1\">Project Type<\/b><\/span><\/td>\n<td><span data-path-to-node=\"21,5,1,0\" data-imt-p=\"1\">New Build \/ Deep Reno<\/span><\/td>\n<td><span data-path-to-node=\"21,5,2,0\" data-imt-p=\"1\">Retrofit \/ Fast Upgrade<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr data-path-to-node=\"22\" \/>\n<h3 data-path-to-node=\"23\"><span class=\"ez-toc-section\" id=\"The_%E2%80%9CFire_Protection_Solution%E2%80%9D_Factor\"><\/span><b data-path-to-node=\"23\" data-index-in-node=\"0\" data-imt-p=\"1\">The &#8220;Fire Protection Solution&#8221; Factor<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-path-to-node=\"24\" data-imt-p=\"1\">Whether you choose embedded or surface-mounted, remember that the door bottom is only half the battle. To create a true <b data-path-to-node=\"24\" data-index-in-node=\"120\">Fire Protection Solution<\/b>, your drop-down seal should always be paired with a high-quality <b data-path-to-node=\"24\" data-index-in-node=\"210\">Fireproof Intumescent Seal<\/b> around the frame.<\/p>\n<ul data-path-to-node=\"25\">\n<li>\n<p data-path-to-node=\"25,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"25,0,0\" data-index-in-node=\"0\">Pro Tip:<\/b> In an office setting, look for &#8220;Acoustic + Smoke&#8221; rated seals. This ensures that while you are meeting fire codes, you are also creating a quiet, productive environment for your team.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"26\" \/>\n<h3 data-path-to-node=\"27\"><span class=\"ez-toc-section\" id=\"Conclusion_Which_should_you_choose\"><\/span><b data-path-to-node=\"27\" data-index-in-node=\"0\" data-imt-p=\"1\">Conclusion: Which should you choose?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-path-to-node=\"28\">\n<li>\n<p data-path-to-node=\"28,0,0\" data-imt-p=\"1\"><b data-path-to-node=\"28,0,0\" data-index-in-node=\"0\">Go Mortised<\/b> if you are ordering new doors or doing a &#8220;down-to-the-studs&#8221; renovation where perfection and hidden hardware are the priorities.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"28,1,0\" data-imt-p=\"1\"><b data-path-to-node=\"28,1,0\" data-index-in-node=\"0\">Go Surface-Mounted<\/b> if you have existing doors and need to solve a noise or smoke leakage problem <i data-path-to-node=\"28,1,0\" data-index-in-node=\"97\">today<\/i> without the mess of sawdust and heavy machinery.<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"29\" \/>\n<p data-path-to-node=\"31\" data-imt-p=\"1\"><b data-path-to-node=\"31\" data-index-in-node=\"0\">Unsure if your office doors can handle a mortised installation?<\/b> Our team provides expert advice on the best <b data-path-to-node=\"31\" data-index-in-node=\"108\">Door Bottom Seals<\/b> for commercial spaces. Send us a photo of your current doors, and we\u2019ll help you choose the right <b data-path-to-node=\"31\" data-index-in-node=\"224\">Fire Protection Solution<\/b> for your budget and style.<\/p>\n\t<div id=\"gap-1011308576\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1011308576 {\n  padding-top: 60px;\n}\n<\/style>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>In a bustling office environment, privacy and safety are paramount. Whether it\u2019s keeping a confidential meeting private or meeting strict fire safety codes, the gap at the bottom of your door is your weakest link. Enter the Automatic Drop-Down Bottom Seal. But when it comes to an office renovation, you face a critical choice: Surface-Mounted [&#8230;]\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3637","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Surface-Mounted vs. Mortised: Which Automatic Drop-Down Seal is Right for Your Office Renovation? - Ressaseal<\/title>\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.ressatech.com\/zh\/surface-mounted-vs-mortised-which-automatic-drop-down-seal-is-right-for-your-office-renovation\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Surface-Mounted vs. Mortised: Which Automatic Drop-Down Seal is Right for Your Office Renovation? - Ressaseal\" \/>\n<meta property=\"og:description\" content=\"In a bustling office environment, privacy and safety are paramount. Whether it\u2019s keeping a confidential meeting private or meeting strict fire safety codes, the gap at the bottom of your door is your weakest link. Enter the Automatic Drop-Down Bottom Seal. 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