{"id":8194,"date":"2026-01-26T13:47:10","date_gmt":"2026-01-26T05:47:10","guid":{"rendered":"https:\/\/hotianwindows.com\/?p=8194"},"modified":"2026-01-26T19:00:38","modified_gmt":"2026-01-26T11:00:38","slug":"seal-weatherproof-french-doors","status":"publish","type":"post","link":"https:\/\/hotianwindows.com\/de\/seal-weatherproof-french-doors\/","title":{"rendered":"So dichten Sie Terrassent\u00fcren ab: Dichtungsb\u00e4nder und Zugluftvermeidung (Leitfaden 2026)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">French doors are notorious for leaks. Their design\u2014two moving panels meeting in the middle\u2014creates weak points for drafts, water intrusion, and bugs. If your room feels colder near the doors or you can see daylight through the cracks, your seals have failed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide covers the most effective weatherproofing methods, from quick alignment checks to replacing weather stripping, sealing the astragal, and fixing the threshold.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u26a1 Quick Fix: Seal French Doors in 3 Steps (15 Minutes, Year-Round)<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Do the \u201cDollar Bill\u201d Test<\/strong><br>Close the door on a dollar bill (or a strip of paper). If you can pull it out easily, the weather stripping is flattened, too thin, or worn out.<\/li>\n\n\n\n<li><strong>Seal the \u201cT-Zone\u201d First<\/strong><br>The biggest leak points are:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the\u00a0<strong>center meeting gap<\/strong>\u00a0(the astragal), and<\/li>\n\n\n\n<li>the\u00a0<strong>bottom corners<\/strong>\u00a0near the threshold.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Check whether the astragal is straight and making contact and whether the bottom corners have visible gaps.<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Lock &amp; Engage (Multi-Point \/ Full Latch)<\/strong><br>On many French doors, lifting the handle (or fully engaging the multi-point lock) pulls the active door tighter against the frame. This often eliminates most air leaks immediately.<\/li>\n<\/ol>\n\n\n\n<style>\n  .cta-brand-green-v3 {\n    background-color: #E4EFE6; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u91c7\u7528\u8c03\u8272\u677f\u4e2d\u7684\u6de1\u7eff\u8272\u80cc\u666f\uff0c\u4ee5\u589e\u5f3a\u533a\u5206\u5ea6 *\/\n    border-left: 4px solid #27BE40;\n    border-radius: 6px;\n    padding: 18px 25px;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n    margin: 2em 0;\n    gap: 20px;\n  }\n  .cta-brand-green-v3 p {\n    margin: 0;\n    padding: 0;\n    color: #212529; \n  }\n  .cta-brand-green-v3 a {\n    background-color: #27BE40;\n    color: #FFFFFF;\n    text-decoration: none;\n    padding: 10px 22px;\n    border-radius: 5px;\n    font-weight: bold;\n    white-space: nowrap;\n    transition: all 0.2s ease;\n    text-align: center; \/* \u8ba9\u6309\u94ae\u6587\u5b57\u5c45\u4e2d *\/\n    min-width: 120px; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u8bbe\u5b9a\u6309\u94ae\u6700\u5c0f\u5bbd\u5ea6\uff0c\u8ba9\u5b83\u66f4\u8212\u5c55 *\/\n  }\n  .cta-brand-green-v3 a:hover {\n    transform: translateY(-2px);\n    box-shadow: 0 4px 8px rgba(0,0,0,0.1);\n  }\n  @media (max-width: 600px) {\n    .cta-brand-green-v3 {\n      flex-direction: column;\n      text-align: center;\n    }\n  }\n<\/style>\n\n<div class=\"cta-brand-green-v3\">\n  <p>\n    Want timeless design and modern performance? Discover our French door range.\n  <\/p>\n  <a href=\"https:\/\/hotianwindows.com\/steel-french-doors\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n    Browse Styles\n  <\/a>\n  <\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Diagnosis: Where Is the Leak?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before buying materials, pinpoint the source. French doors usually fail in four zones:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Center Gap (Astragal)<\/strong><br>The vertical meeting strip between the two doors is the #1 cause of drafts.<\/li>\n\n\n\n<li><strong>Perimeter (Jambs \/ Head)<\/strong><br>The top and sides. Weather stripping here compresses and stays \u201cflat\u201d over time.<\/li>\n\n\n\n<li><strong>Bottom (Threshold\/Sweep)<\/strong><br>The door bottom seal wears out, or the threshold is uneven.<\/li>\n\n\n\n<li><strong>Exterior Frame (Caulk Line)<\/strong><br>Cracked exterior caulk lets cold air and water bypass the door frame entirely.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Best Weather Stripping for French Doors (Material Comparison)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing the right material matters: too thick and the door won\u2019t close; too thin and it won\u2019t seal.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Material Type<\/th><th>Best Application<\/th><th>Winter Benefit (Drafts)<\/th><th>Summer Benefit (Bugs)<\/th><\/tr><\/thead><tbody><tr><td><strong>Q-Lon \/ Kerf Foam<\/strong><\/td><td>Door frame (jambs)<\/td><td>High\u2014compresses into an airtight seal<\/td><td>High\u2014blocks heat and gnats<\/td><\/tr><tr><td><strong>V-Strip (Tension)<\/strong><\/td><td>Sliding\/hinge sides<\/td><td>Medium\u2014good for uneven gaps<\/td><td>Low\u2014mainly air sealing<\/td><\/tr><tr><td><strong>Door Sweep (Rubber\/Fin)<\/strong><\/td><td>Door bottom<\/td><td>High\u2014blocks wind, snow, splash<\/td><td>Medium\u2014stops crawling insects<\/td><\/tr><tr><td><strong>100% Silicone Caulk<\/strong><\/td><td>Exterior frame<\/td><td>High\u2014waterproof + blocks bypass<\/td><td>High\u2014prevents water damage<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Step-by-Step Sealing Guide (Most Effective Order)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Seal the Center Gap (The Astragal)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The meeting point is the hardest area to seal well.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inspect the astragal strip<\/strong>: If it\u2019s crushed, torn, or permanently flattened, remove it and replace it with a new foam tape or a purpose-made astragal seal\/boot.<\/li>\n\n\n\n<li><strong>Engage flush bolts on the passive door<\/strong>: The inactive door must be rigid at the top and bottom. If it rattles, adjust the strike\/receiver so the bolts pull the door tighter against the stop.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Replace Perimeter Weather Stripping (Jambs\/Head)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kerf-in style (best if your frame has a slot)<\/strong>: Pull out the old strip and press in new Q-Lon\/kerf weather stripping\u2014no adhesive needed.<\/li>\n\n\n\n<li><strong>Adhesive style (older wood frames)<\/strong>: Clean with alcohol, let dry, then apply self-adhesive V-strip or tubular rubber gasket. Press firmly and avoid stretching during installation.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Weatherproof the Bottom (Sweep &amp; Threshold)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Install a door sweep<\/strong>: Use an aluminum carrier with a rubber blade on the interior face of the door. Adjust so it\u00a0<em>just<\/em>\u00a0touches the threshold\u2014tight enough to seal, not so tight that it drags heavily.<\/li>\n\n\n\n<li><strong>Add corner pads (corner seals)<\/strong>: Apply small wedge pads at the bottom corners of the jambs to stop the common \u201ccorner draft\u201d that survives even after new stripping.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Exterior Caulking (Stop Air\/Water Bypass)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use\u00a0<strong>100% exterior-grade silicone<\/strong>\u00a0to seal the gap between the exterior door frame trim and the siding\/masonry.<\/li>\n\n\n\n<li><strong>Important:<\/strong>\u00a0Do\u00a0<strong>not<\/strong>\u00a0caulk the\u00a0<em>outside bottom<\/em>\u00a0of the threshold. That area often needs drainage (weep path) so trapped water can escape.<\/li>\n<\/ul>\n\n\n\n<style>\n  .cta-brand-green-v3 {\n    background-color: #E4EFE6; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u91c7\u7528\u8c03\u8272\u677f\u4e2d\u7684\u6de1\u7eff\u8272\u80cc\u666f\uff0c\u4ee5\u589e\u5f3a\u533a\u5206\u5ea6 *\/\n    border-left: 4px solid #27BE40;\n    border-radius: 6px;\n    padding: 18px 25px;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n    margin: 2em 0;\n    gap: 20px;\n  }\n  .cta-brand-green-v3 p {\n    margin: 0;\n    padding: 0;\n    color: #212529; \n  }\n  .cta-brand-green-v3 a {\n    background-color: #27BE40;\n    color: #FFFFFF;\n    text-decoration: none;\n    padding: 10px 22px;\n    border-radius: 5px;\n    font-weight: bold;\n    white-space: nowrap;\n    transition: all 0.2s ease;\n    text-align: center; \/* \u8ba9\u6309\u94ae\u6587\u5b57\u5c45\u4e2d *\/\n    min-width: 120px; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u8bbe\u5b9a\u6309\u94ae\u6700\u5c0f\u5bbd\u5ea6\uff0c\u8ba9\u5b83\u66f4\u8212\u5c55 *\/\n  }\n  .cta-brand-green-v3 a:hover {\n    transform: translateY(-2px);\n    box-shadow: 0 4px 8px rgba(0,0,0,0.1);\n  }\n  @media (max-width: 600px) {\n    .cta-brand-green-v3 {\n      flex-direction: column;\n      text-align: center;\n    }\n  }\n<\/style>\n\n<div class=\"cta-brand-green-v3\">\n  <p>\n    Want timeless design and modern performance? Discover our French door range.\n  <\/p>\n  <a href=\"https:\/\/hotianwindows.com\/steel-french-doors\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n    Browse Styles\n  <\/a>\n  <\/div>\n\n\n\n<h2 class=\"wp-block-heading\">When Sealing Isn\u2019t Enough (Time to Upgrade)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Weather stripping is not a cure-all. If your doors are&nbsp;<strong>warped, rotted, out of square, or single-pane<\/strong>, sealing becomes a temporary band-aid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why Hotian French Doors are different:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Factory-installed multi-point locks<\/strong>: Pull the door tight at multiple points for a stronger, more consistent seal.<\/li>\n\n\n\n<li><strong>Dual-seal astragals<\/strong>: Designed to eliminate the center-gap problem.<\/li>\n\n\n\n<li><strong>Thermally broken frames<\/strong>: Reduce heat transfer through the frame material itself.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Next steps:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/hotianwindows.com\/steel-french-doors\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Browse our energy-efficient French door catalog<\/mark><\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/hotianwindows.com\/contact\/\" data-type=\"page\" data-id=\"850\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">Contact us for custom manufacturing<\/mark><\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<style>\n  .cta-brand-green-v3 {\n    background-color: #E4EFE6; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u91c7\u7528\u8c03\u8272\u677f\u4e2d\u7684\u6de1\u7eff\u8272\u80cc\u666f\uff0c\u4ee5\u589e\u5f3a\u533a\u5206\u5ea6 *\/\n    border-left: 4px solid #27BE40;\n    border-radius: 6px;\n    padding: 18px 25px;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n    margin: 2em 0;\n    gap: 20px;\n  }\n  .cta-brand-green-v3 p {\n    margin: 0;\n    padding: 0;\n    color: #212529; \n  }\n  .cta-brand-green-v3 a {\n    background-color: #27BE40;\n    color: #FFFFFF;\n    text-decoration: none;\n    padding: 10px 22px;\n    border-radius: 5px;\n    font-weight: bold;\n    white-space: nowrap;\n    transition: all 0.2s ease;\n    text-align: center; \/* \u8ba9\u6309\u94ae\u6587\u5b57\u5c45\u4e2d *\/\n    min-width: 120px; \/* \u6700\u7ec8\u4f18\u5316\uff1a\u8bbe\u5b9a\u6309\u94ae\u6700\u5c0f\u5bbd\u5ea6\uff0c\u8ba9\u5b83\u66f4\u8212\u5c55 *\/\n  }\n  .cta-brand-green-v3 a:hover {\n    transform: translateY(-2px);\n    box-shadow: 0 4px 8px rgba(0,0,0,0.1);\n  }\n  @media (max-width: 600px) {\n    .cta-brand-green-v3 {\n      flex-direction: column;\n      text-align: center;\n    }\n  }\n<\/style>\n\n<div class=\"cta-brand-green-v3\">\n  <p>\n    Want timeless design and modern performance? Discover our French door range.\n  <\/p>\n  <a href=\"https:\/\/hotianwindows.com\/steel-french-doors\/\" target=\"_blank\" rel=\"noopener noreferrer\">\n    Browse Styles\n  <\/a>\n  <\/div>\n\n\n\n<div class=\"local-faq-block\">\n  <h2 class=\"local-faq-title\">French Doors: Drafts, Leaks &#038; Weatherstripping (FAQs)<\/h2>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Are French doors drafty by design?<\/h3>\n    <div class=\"local-faq-a\">\n      <strong>No.<\/strong> Modern French doors can be very tight and energy efficient when they\u2019re <strong>well-built, properly installed, and correctly adjusted<\/strong>. Drafts usually come from <strong>worn weatherstripping<\/strong>, a door that\u2019s <strong>out of alignment<\/strong>, a <strong>warped slab<\/strong>, or a threshold\/sweep that isn\u2019t sealing.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Which is more energy efficient: sliding or French doors?<\/h3>\n    <div class=\"local-faq-a\">\n      Either can be efficient, but it comes down to <strong>build quality, glass package, and sealing<\/strong>.<br><br>\n      <strong>Sliding doors<\/strong> often have fewer compression seams and can be easier to keep airtight, but they rely heavily on the interlock and track seals.<br>\n      <strong>French doors<\/strong> seal well when the slabs compress tightly against the weatherstripping\u2014especially with a <strong>multi-point lock<\/strong>\u2014but they do have more potential seam locations (center astragal, hinges, threshold).\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Do all French doors leak?<\/h3>\n    <div class=\"local-faq-a\">\n      <strong>Absolutely not.<\/strong> A properly installed French door system with correct <strong>flashing<\/strong>, a <strong>sill pan<\/strong>, and good sealant practices should not leak. If water is getting in, it usually points to an issue such as <strong>failed caulk<\/strong>, missing\/incorrect flashing, an unsealed sill, or a threshold that\u2019s not draining correctly.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">What\u2019s the best weatherstripping for French doors?<\/h3>\n    <div class=\"local-faq-a\">\n      The \u201cbest\u201d depends on the gap size and where the leak\/draft is, but a strong setup typically includes:<br><br>\n      \u2022 <strong>Kerf-in compression bulb<\/strong> (foam\/rubber) for the jambs and header (durable, consistent seal)<br>\n      \u2022 A quality <strong>door sweep<\/strong> or <strong>bottom gasket<\/strong> to meet the threshold<br>\n      \u2022 A tight <strong>astragal\/center seal<\/strong> between the two doors (often paired with a multi-point lock for better compression)<br><br>\n      Tip: Match the product type to the door\u2019s groove\/kerf (kerf-in vs. adhesive) and the actual gap\u2014too thick can prevent latching; too thin won\u2019t seal.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Where do you add corner seals on double French doors?<\/h3>\n    <div class=\"local-faq-a\">\n      Most commonly at the <strong>bottom corners<\/strong>\u2014where the side-jamb weatherstrip meets the threshold\/sweep\u2014because a small triangular gap often remains there. In some setups, installers also add them at the <strong>top corners<\/strong> if there\u2019s air movement at the header-to-jamb junction.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Can I use foam tape for French doors?<\/h3>\n    <div class=\"local-faq-a\">\n      You can, but it\u2019s best as a <strong>short-term<\/strong> fix. Adhesive foam tape tends to <strong>compress, peel, and lose sealing power<\/strong> with repeated door use and temperature swings. For a longer-lasting repair, use <strong>kerf-in compression weatherstripping<\/strong> (if the frame has a kerf) or a quality <strong>V-strip<\/strong>\/<strong>bulb seal<\/strong> designed for doors.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">How do I stop water leaking under the door?<\/h3>\n    <div class=\"local-faq-a\">\n      Start with the common fixes:<br><br>\n      \u2022 Confirm the <strong>door sweep<\/strong> contacts the threshold consistently (replace if worn)<br>\n      \u2022 Make sure the <strong>threshold is adjusted<\/strong> (many are adjustable) and slopes\/drains outward<br>\n      \u2022 Check exterior <strong>caulking and flashing<\/strong> at the sides and top\u2014water often enters there and shows up at the bottom<br><br>\n      If water still gets in during wind-driven rain, the permanent fix may require a properly installed <strong>sill pan<\/strong> and re-flashing, which typically means removing the unit.\n    <\/div>\n  <\/div>\n\n  <div class=\"local-faq-item\">\n    <h3 class=\"local-faq-q\">Are sliding doors tighter than French doors?<\/h3>\n    <div class=\"local-faq-a\">\n      <strong>Often, yes<\/strong>\u2014sliders usually have fewer compression seams. That said, a premium French door with a well-designed astragal, fresh weatherstripping, and a <strong>multi-point lock<\/strong> can perform similarly. In both cases, <strong>installation and adjustment<\/strong> are what determine real-world tightness.\n    <\/div>\n  <\/div>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\":\"https:\/\/schema.org\",\n  \"@type\":\"FAQPage\",\n  \"mainEntity\":[\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Are French doors drafty by design?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"No. Modern French doors can be very tight and energy efficient when they\u2019re well-built, properly installed, and correctly adjusted. Drafts usually come from worn weatherstripping, a door that\u2019s out of alignment, a warped slab, or a threshold\/sweep that isn\u2019t sealing.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Which is more energy efficient: sliding or French doors?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"Either can be efficient, but it comes down to build quality, glass package, and sealing. Sliding doors often have fewer compression seams and can be easier to keep airtight, but they rely heavily on the interlock and track seals. French doors seal well when the slabs compress tightly against the weatherstripping\u2014especially with a multi-point lock\u2014but they do have more potential seam locations (center astragal, hinges, threshold).\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Do all French doors leak?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"Absolutely not. A properly installed French door system with correct flashing, a sill pan, and good sealant practices should not leak. If water is getting in, it usually points to an issue such as failed caulk, missing\/incorrect flashing, an unsealed sill, or a threshold that\u2019s not draining correctly.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"What\u2019s the best weatherstripping for French doors?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"The best choice depends on gap size and location. A strong setup typically includes kerf-in compression bulb weatherstripping for the jambs and header, a quality door sweep or bottom gasket to meet the threshold, and a tight astragal\/center seal between the two doors. Match the product type (kerf-in vs. adhesive) and thickness to the actual gap.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Where do you add corner seals on double French doors?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"Most commonly at the bottom corners where the side-jamb weatherstrip meets the threshold\/sweep, because a small gap often remains there. Sometimes they\u2019re added at the top corners if there\u2019s air movement at the header-to-jamb junction.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Can I use foam tape for French doors?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"You can, but it\u2019s best as a short-term fix. Adhesive foam tape tends to compress, peel, and lose sealing power. For a longer-lasting repair, use kerf-in compression weatherstripping (if the frame has a kerf) or a quality V-strip\/bulb seal designed for doors.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"How do I stop water leaking under the door?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"Check the door sweep and ensure consistent contact with the threshold, adjust or replace the threshold\/sweep as needed, and verify exterior caulking and flashing. If water still enters during wind-driven rain, the permanent fix may require a properly installed sill pan and re-flashing, which often requires removing the unit.\"\n      }\n    },\n    {\n      \"@type\":\"Question\",\n      \"name\":\"Are sliding doors tighter than French doors?\",\n      \"acceptedAnswer\":{\n        \"@type\":\"Answer\",\n        \"text\":\"Often yes, because sliders usually have fewer compression seams. However, a premium French door with a well-designed astragal, fresh weatherstripping, and a multi-point lock can perform similarly. Installation and adjustment determine real-world tightness.\"\n      }\n    }\n  ]\n}\n<\/script>\n\n<style>\n.local-faq-block {\n  margin: 2.4em 0;\n  padding: 0;\n  font-family: inherit;\n  background: transparent;\n}\n.local-faq-title {\n  font-size: 2em;\n  margin-bottom: 1em;\n  font-weight: 700;\n  color: inherit;\n  letter-spacing: -0.5px;\n}\n.local-faq-q {\n  font-size: 1.25em;\n  margin-bottom: 0.6em;\n  font-weight: 700;\n  color: inherit;\n  line-height: 1.3;\n}\n.local-faq-a {\n  background: #fafbfc;\n  border: 1px solid #e4e6e8;\n  border-radius: 10px;\n  color: inherit;\n  padding: 1.1em 1.4em;\n  font-size: 1.06em;\n  line-height: 1.7;\n  margin-bottom: 0.2em;\n  box-shadow: none;\n  transition: background 0.2s;\n}\n.local-faq-a ul {\n  margin: 0.2em 0 0.4em;\n  padding-left: 1.5em;\n}\n.local-faq-item {\n  margin-bottom: 2.2em;\n}\n@media (max-width: 767px) {\n  .local-faq-title { font-size:1.22em; }\n  .local-faq-q    { font-size:1.08em; }\n  .local-faq-a    { padding:0.9em 0.7em; font-size:0.99em; }\n}\n<\/style>\n","protected":false},"excerpt":{"rendered":"<p>French doors are notorious for leaks. Their design\u2014two moving panels meeting in the middle\u2014creates weak points for drafts, water intrusion, and bugs. If your room feels colder near the doors or you can see daylight through the cracks, your seals have failed. This guide covers the most effective weatherproofing methods, from quick alignment checks to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-8194","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-installation-maintenance"],"acf":[],"_links":{"self":[{"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/posts\/8194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/comments?post=8194"}],"version-history":[{"count":0,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/posts\/8194\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/media\/16643"}],"wp:attachment":[{"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/media?parent=8194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/categories?post=8194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotianwindows.com\/de\/wp-json\/wp\/v2\/tags?post=8194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}