{"id":215947,"date":"2026-01-04T06:35:14","date_gmt":"2026-01-04T06:35:14","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/215947\/"},"modified":"2026-01-04T06:35:14","modified_gmt":"2026-01-04T06:35:14","slug":"soundproofing-foam-in-focus-in-probe-of-deadly-swiss-bar-fire","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/215947\/","title":{"rendered":"Soundproofing foam in focus in probe of deadly Swiss bar fire"},"content":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/01\/4JVC2ZX_AFP__20260102__89G33KP__v1__HighRes__SwitzerlandAccidentFire_jpg.jpeg\" width=\"1050\" height=\"700\" alt=\"Firefighters exit the Constellation bar where a fire ripped through during New Year's Eve celebrations in the Alpine ski resort town of Crans-Montana killing around 40 people and injuring more than 100 others, in Crans-Montana on January 2, 2026.\"\/><\/p>\n<p class=\"photo-captioned__information\">\nFirefighters exit the Constellation bar where a fire ripped through during New Year&#8217;s Eve celebrations in the Alpine ski resort town of Crans-Montana killing around 40 people and injuring more than 100 others, in Crans-Montana on January 2, 2026.<br \/>\nPhoto: AFP\/SUPPLIED\n<\/p>\n<p>The soundproofing foam covering the ceiling of a Swiss ski resort bar that <a href=\"https:\/\/www.rnz.co.nz\/news\/world\/583075\/a-new-year-s-party-in-an-upscale-swiss-ski-resort-turned-deadly-here-s-what-we-know\" rel=\"nofollow noopener\" target=\"_blank\">went up in flames on New Year&#8217;s Eve, killing 40 people<\/a>, is being closely scrutinised by investigators.<\/p>\n<p>The question of whether safety standards were respected has been debated since the fire broke out at Le Constellation bar in Switzerland&#8217;s glitzy resort town Crans-Montana at around 1.30 am on Thursday (local time), as the venue was crammed with young partygoers.<\/p>\n<p>Beatrice Pilloud, the lead prosecutor in Switzerland&#8217;s southwestern Wallis canton, told reporters Friday that the leading hypothesis was that &#8220;sparklers or Bengal candles attached to champagne bottles and lifted too close to the ceiling&#8221; of the bar&#8217;s basement had ignited the deadly blaze.<\/p>\n<p>One video shared on social media showed the low ceiling &#8211; covered with soundproofing foam &#8211; catching alight and the flames spreading quickly, as revellers continued to dance, unaware of the death trap they were in.<\/p>\n<p>Once they realised, panic set in.<\/p>\n<p>&#8220;The investigation is indeed focusing on the installation of this foam&#8221;, and it will have to determine whether this soundproofing material &#8220;is compliant&#8221; and whether it &#8220;caused the fire or not&#8221;, Pilloud said.<\/p>\n<p>&#8216;Very easily flammable&#8217;<\/p>\n<p>For Freddy Rigaux, a former professional firefighter in France and a court-appointed expert, the material visible in videos shared online corresponds to products that are &#8220;easily, even very easily, flammable&#8221;.<\/p>\n<p>It clearly did not meet the so-called M1 fire-resistance standards required for ceilings in public buildings in France, he said, explaining that M1-rated materials are combustible, but not flammable.<\/p>\n<p>&#8220;They will degrade under the effect of heat, but will not produce flames, particularly flaming droplets as seen in the video,&#8221; he said.<\/p>\n<p>When soundproofing foam is not treated with flame retardants, fire can spread very rapidly, the expert explained.<\/p>\n<p>&#8216;Inconceivable&#8217;<\/p>\n<p>According to Romain Amisse, another court-appointed fire expert, the fumes emitted when such material burns are toxic, especially in very confined spaces, as is the case in the Le Constellation&#8217;s packed basement.<\/p>\n<p>He said the Swiss tragedy was reminiscent of the Cuba Libre bar fire, which killed 14 people in Rouen, northern France, in 2016.<\/p>\n<p>In Crans-Montana, &#8220;you have pretty much the same situation, with highly flammable foam on the ceiling that produces a lot of smoke&#8221;, he said.<\/p>\n<p>David Zenouda, the vice-president of the Union of Trades and Industries in the Hotel and Catering Sector in Paris, said using the type of foam seen in the Crans-Montana images for soundproofing a venue was &#8220;inconceivable&#8221;.<\/p>\n<p>&#8220;For soundproofing, we have specific materials for covering ceilings and walls, creating a kind of box within a box,&#8221; he told AFP.<\/p>\n<p>What you want, he said, was to create a &#8220;box with a plasterboard panel&#8230; on which you place tar paper panels with rock wool, and then another panel&#8221;.<\/p>\n<p>&#8220;It is very complex and requires significant investment,&#8221; he acknowledged.<\/p>\n<p>By contrast, he said, the method that appears to have been used at the Le Constellation bar is equivalent to &#8220;soundproofing material for media booths or recording studios&#8221;, not for establishments open to the public.<\/p>\n<p>The danger posed was &#8220;exactly the same&#8221; as if the bar managers had decided to cover their venue with nylon sheets, he said.<\/p>\n<p>&#8220;Combined with the sparklers&#8230; the effects would have been the same.&#8221;<\/p>\n<p>&#8211; AFP<\/p>\n","protected":false},"excerpt":{"rendered":"Firefighters exit the Constellation bar where a fire ripped through during New Year&#8217;s Eve celebrations in the Alpine&hellip;\n","protected":false},"author":2,"featured_media":215948,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[48,47,42,43,49,46,44,45,40,38,41,39],"class_list":{"0":"post-215947","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-headlines","8":"tag-audio","9":"tag-current-affairs","10":"tag-headlines","11":"tag-news","12":"tag-podcasts","13":"tag-public-radio","14":"tag-radio-new-zealand","15":"tag-rnz","16":"tag-top-news","17":"tag-top-stories","18":"tag-topnews","19":"tag-topstories"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/215947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=215947"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/215947\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/215948"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=215947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=215947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=215947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}