{"id":2584,"date":"2025-04-17T10:45:31","date_gmt":"2025-04-17T08:45:31","guid":{"rendered":"https:\/\/www.fixolite.eu\/?p=2584"},"modified":"2025-09-03T13:29:46","modified_gmt":"2025-09-03T11:29:46","slug":"bloc-fixolite-vs-bloc-100-polystyrene","status":"publish","type":"post","link":"https:\/\/fixolite.eu\/en\/bloc-fixolite-vs-bloc-100-polystyrene\/","title":{"rendered":"Block Fixolite vs Block 100% Polystyrene"},"content":{"rendered":"<p>The advantages of cement block are numerous, and Fixolite block scores in every respect: <\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.34%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"250\" src=\"https:\/\/www.fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11.png\" alt=\"\" class=\"wp-image-1708\" srcset=\"https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11.png 250w, https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11-150x150.png 150w, https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11-12x12.png 12w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.34%\">\n<p><\/p>\n\n\n<h1 class=\"wp-block-heading has-text-align-center\" id=\"h-\">\ud83c\udd9a<\/h1><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img data-dominant-color=\"d8d8d8\" data-has-transparency=\"false\" style=\"--dominant-color: #d8d8d8;\" loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/www.fixolite.eu\/wp-content\/uploads\/EPS-block.avif\" alt=\"\" class=\"wp-image-2599 not-transparent\" srcset=\"https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block.avif 500w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-300x300.avif 300w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-150x150.avif 150w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><strong>1. \ud83c\udf31 Lower carbon footprint - RE2020<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood cement (often wood chips bonded with cement) incorporates a proportion of bio-sourced material, which reduces its carbon footprint compared with EPS (derived from petrochemicals). This makes it more compatible with the requirements of the RE2020.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>2. \ud83c\udf2c\ufe0f Breathable, natural material<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood cement is breathable, which helps regulate interior humidity and reduces the risk of condensation\/mould.<br>\ud83e\udec1 EPS, on the other hand, is completely impermeable to water vapour, and can cause problems if thermal bridges or waterproofing are poorly managed.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>3. \ud83d\udd25 Fire safety<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood cement is classified as non-flammable (often M0), unlike polystyrene, which melts, spreads fire and gives off highly toxic gases (styrene, benzene, etc.).<br>\u26a0\ufe0f This is a major difference, especially indoors.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>4. \ud83d\udee0\ufe0f Easy to install (self-build)<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood-cement blocks are often lightweight, easy to handle and can be sawn easily, which is appreciated in self-construction. No special tools are required, as is the case with some EPS insulating formworks.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>5. \ud83c\udf1e Thermal inertia (summer comfort)<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood cement has good inertia (thermal mass), which helps to smooth out temperature variations.<br>\u2744\ufe0f Conversely, EPS on the inside blocks heat exchange with the mass of the wall, which is detrimental to summer comfort.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>6. \ud83d\udd07 Acoustic comfort<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u2714\ufe0f <em>Yes.<\/em> Wood cement is much better acoustically than EPS. It absorbs airborne and impact noise. EPS performs poorly in this respect, especially in lightweight walls.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>7. \ud83d\udd28 Mechanical strength and durability<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Wood cement is a strong, durable material. It is resistant to impact, damp, rodents and mould.<br>EPS is fragile, easily perforated and subject to ageing if poorly protected.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>8. \u267b\ufe0f Recyclability\/End-of-life impact<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Wood cement is more easily recycled or reused, whereas EPS is very difficult to recycle in practice (large volume, few channels). In the event of deconstruction, EPS becomes a problematic waste product.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>9. \ud83d\udd27 Constructive versatility<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Wood-cement blocks are often load-bearing, allowing simple construction without additional structures. EPS blocks (insulated concrete forms) require concrete to be poured and thermal bridges to be managed, and are sometimes ill-suited to certain seismic or damp areas.<\/p>\n<\/blockquote>\n\n\n\n<p><strong>10. \ud83d\ude0c Indoor air quality<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Wood cement emits no VOCs or toxic gases, unlike polystyrene, which can release pentane (during manufacture) or styrene (in the event of fire or excessive heat).<\/p>\n<\/blockquote>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-en-resume\">\ud83e\uddf1 To sum up:<\/h3>\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th><\/th><th><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-1708\" style=\"width: 150px;\" src=\"https:\/\/www.fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11.png\" alt=\"\" srcset=\"https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11.png 250w, https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11-150x150.png 150w, https:\/\/fixolite.eu\/wp-content\/uploads\/2023\/11\/ISOBLOC_HI_40_11-12x12.png 12w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/th><th><img data-dominant-color=\"d8d8d8\" data-has-transparency=\"false\" loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-2599 not-transparent\" style=\"--dominant-color: #d8d8d8; width: 150px;\" src=\"https:\/\/www.fixolite.eu\/wp-content\/uploads\/EPS-block.avif\" alt=\"\" srcset=\"https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block.avif 500w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-300x300.avif 300w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-150x150.avif 150w, https:\/\/fixolite.eu\/wp-content\/uploads\/EPS-block-12x12.avif 12w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/th><\/tr><tr><th>Criteria<\/th><th>Wood-cement<\/th><th>PSE block<\/th><\/tr><\/thead><tbody><tr><td>Carbon footprint<\/td><td>\u2705 Low<\/td><td>\u274c Very high<\/td><\/tr><tr><td>Thermal inertia<\/td><td>\u2705 Good<\/td><td>\u274c Very low<\/td><\/tr><tr><td>Summer comfort<\/td><td>\u2705 Yes<\/td><td>\u274c Bad<\/td><\/tr><tr><td>Acoustic comfort<\/td><td>\u2705 Good<\/td><td>\u274c Low<\/td><\/tr><tr><td>Breathable<\/td><td>\u2705 Yes<\/td><td>\u274c No<\/td><\/tr><tr><td>Fire safety<\/td><td>\u2705 Non-flammable<\/td><td>\u274c Toxic release<\/td><\/tr><tr><td>Self-build<\/td><td>\u2705 Easy<\/td><td>\u26a0\ufe0f Complex <br>(formwork, concrete)<\/td><\/tr><tr><td>Recycling<\/td><td>\u2705 Possible<\/td><td>\u274c Difficult<\/td><\/tr><tr><td>Health &amp; IAQ<\/td><td>\u2705 VOC-free<\/td><td>\u274c Risks (styrene)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sources-et-articles-interessants\">Sources and interesting articles:<\/h3>\n\n<h4 class=\"wp-block-heading\" id=\"1-bilan-carbone-inferieur-compatible-re2020\"><strong>1. Lower carbon footprint - RE2020 compatible<\/strong><\/h4>\n\n\n<p>The wood-cement block contains wood chips, a bio-sourced material that stores carbon. It has a better carbon footprint than petrochemical materials such as EPS.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">ADEME - Biobased materials and environmental performance<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"2-materiau-respirant-et-naturel\"><strong>2. Breathable, natural material<\/strong><\/h4>\n\n\n<p>Wood-cement blocks provide better moisture regulation and are breathable, making for a healthier home. EPS, on the other hand, is impermeable to water vapour.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">CSTB - Hygiene, health and the environment in buildings<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"3-ininflammable-securite-incendie-accrue\"><strong>3. Non-flammable - increased fire safety<\/strong><\/h4>\n\n\n<p>Wood cement is classified as non-flammable (M0). Polystyrene, on the other hand, is highly flammable and gives off highly toxic fumes in the event of a fire.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">Fire safety - INRS<\/a><br>\ud83d\udcce <strong>Additional source (PSE sheet)<\/strong> : <a class=\"\">Expanded polystyrene safety data sheet - Knauf<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"4-mise-en-oeuvre-simple-et-adaptee-a-lautoconstruction\"><strong>4. Easy to install and suitable for self-builders<\/strong><\/h4>\n\n\n<p>Wood-cement blocks are easy to handle, cut and lay. They do not require formwork or concreting like some EPS blocks.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">Guide to building with wood cement blocks - Durisol<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"5-meilleure-inertie-thermique-confort-dete\"><strong>5. Better thermal inertia - Summer comfort<\/strong><\/h4>\n\n\n<p>Thanks to their density, wood-cement blocks store heat during the day and release it at night, regulating the indoor temperature. EPS blocks these exchanges.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">CEREMA - Summer comfort and thermal inertia<\/a><br>\ud83d\udcce <strong>Additional source<\/strong> : <a class=\"\">RE2020 - Ministry of Ecological Transition<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"6-confort-acoustique-superieur\"><strong>6. Superior acoustic comfort<\/strong><\/h4>\n\n\n<p>Wood-cement absorbs airborne and impact noise, unlike EPS, which lets sound through and causes discomfort in living areas.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">Qualitel - Acoustic insulation in the home<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"7-resistance-mecanique-et-durabilite\"><strong>7. Mechanical strength and durability<\/strong><\/h4>\n\n\n<p>Wood cement is robust, resistant to moisture and pests, and has a long service life. EPS is sensitive to impact and UV light.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\">Technical sheet - Wood-cement block<\/a><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"8-recyclage-et-impact-en-fin-de-vie\"><strong>8. Recycling and end-of-life impact<\/strong><\/h4>\n\n\n<p>Wood-cement blocks can be recycled or reused. EPS is difficult to recycle and generates bulky waste.<br>\ud83d\udcce <strong>Source<\/strong> : <a class=\"\" href=\"https:\/\/www.base-inies.fr\/\">ADEME fact sheet - ESDS of building materials<\/a><br>\ud83d\udcce <strong>Additional source - Polystyrene difficult to recycle<\/strong> : <a class=\"\">Zero Waste France<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Les avantages du bloc-ciment sont nombreux et sur chaque aspect, le bloc Fixolite marque des points : \ud83c\udd9a 1. \ud83c\udf31 Bilan carbone inf\u00e9rieur \u2014 RE2020 \u2714\ufe0f Oui. Le bois-ciment (souvent des copeaux de bois li\u00e9s avec du ciment) int\u00e8gre une part de mat\u00e9riau biosourc\u00e9, ce qui r\u00e9duit son impact carbone compar\u00e9 au PSE (issu de [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2587,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blocs-de-construction"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bloc Fixolite vs Bloc 100% Polystyr\u00e8ne - FIXOLITE<\/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.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bloc Fixolite vs Bloc 100% Polystyr\u00e8ne\" \/>\n<meta property=\"og:description\" content=\"Les avantages du bloc-ciment sont nombreux et sur chaque aspect, le bloc Fixolite marque des points : \ud83c\udd9a 1. \ud83c\udf31 Bilan carbone inf\u00e9rieur \u2014 RE2020 \u2714\ufe0f Oui. Le bois-ciment (souvent des copeaux de bois li\u00e9s avec du ciment) int\u00e8gre une part de mat\u00e9riau biosourc\u00e9, ce qui r\u00e9duit son impact carbone compar\u00e9 au PSE (issu de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\" \/>\n<meta property=\"og:site_name\" content=\"FIXOLITE\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-17T08:45:31+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-03T11:29:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.isolbloc.fr\/wp-content\/uploads\/Fixolite-VS-Polystyrene.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"S\u00e9bastien Denis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"S\u00e9bastien Denis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\"},\"author\":{\"name\":\"S\u00e9bastien Denis\",\"@id\":\"http:\/\/fixolite.fr\/en\/#\/schema\/person\/12b01e595f01a9c68650f2def2aca3c4\"},\"headline\":\"Bloc Fixolite vs Bloc 100% Polystyr\u00e8ne\",\"datePublished\":\"2025-04-17T08:45:31+00:00\",\"dateModified\":\"2025-09-03T11:29:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\"},\"wordCount\":897,\"publisher\":{\"@id\":\"http:\/\/fixolite.fr\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/fixolite.eu\/wp-content\/uploads\/Fixolite-VS-Polystyrene.avif\",\"articleSection\":[\"Blocs de construction\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\",\"url\":\"https:\/\/www.isolbloc.fr\/sq\/bloc-fixolite-vs-bloc-100-polystyrene\/\",\"name\":\"Bloc Fixolite vs Bloc 100% Polystyr\u00e8ne - 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