{"id":309,"date":"2021-02-16T11:59:46","date_gmt":"2021-02-16T11:59:46","guid":{"rendered":"https:\/\/www.inspec-pro.ca\/?p=309"},"modified":"2026-08-10T13:57:31","modified_gmt":"2026-08-10T17:57:31","slug":"snow-retention-systems","status":"publish","type":"post","link":"https:\/\/www.inspec-pro.ca\/fr\/snow-retention-systems\/","title":{"rendered":"Pare-neige et syst\u00e8mes de r\u00e9tention de neige sur les toits : ce que les propri\u00e9taires doivent savoir"},"content":{"rendered":"<p>Les pare-neige et syst\u00e8mes de r\u00e9tention de neige sont install\u00e9s sur les toitures en pente afin d\u2019aider \u00e0 contr\u00f4ler la chute soudaine de neige et de glace accumul\u00e9es. On les retrouve couramment sur les toitures m\u00e9talliques, o\u00f9 la neige peut glisser de la surface avec peu d\u2019avertissement.<\/p>\n<p>Lorsqu\u2019un syst\u00e8me de r\u00e9tention de neige est correctement con\u00e7u et install\u00e9, il aide \u00e0 retenir la neige afin qu\u2019elle fonde ou se lib\u00e8re en plus petites quantit\u00e9s. Cela peut r\u00e9duire le risque de dommages ou de blessures pr\u00e8s des entr\u00e9es, all\u00e9es, entr\u00e9es de garage, terrasses, toitures inf\u00e9rieures et \u00e9quipements m\u00e9caniques.<\/p>\n<h2>Qu\u2019est-ce qu\u2019un syst\u00e8me de r\u00e9tention de neige sur toiture?<\/h2>\n<p>Un syst\u00e8me de r\u00e9tention de neige comprend des pare-neige, rails, barres ou supports install\u00e9s sur certaines portions d\u2019une toiture. Selon le mat\u00e9riau de couverture et la conception du syst\u00e8me, les composants peuvent \u00eatre fix\u00e9s m\u00e9caniquement, serr\u00e9s sur des joints debout ou coll\u00e9s \u00e0 l\u2019aide d\u2019adh\u00e9sifs approuv\u00e9s.<\/p>\n<p>Les syst\u00e8mes courants comprennent :<\/p>\n<ul>\n<li>Pare-neige individuels install\u00e9s selon une configuration planifi\u00e9e.<\/li>\n<li>Rails ou barres horizontales continues.<\/li>\n<li>Syst\u00e8mes \u00e0 pinces pour toitures m\u00e9talliques \u00e0 joints debout.<\/li>\n<li>Syst\u00e8mes sp\u00e9cialis\u00e9s con\u00e7us pour l\u2019ardoise, la tuile ou d\u2019autres mat\u00e9riaux de toiture.<\/li>\n<\/ul>\n<p>Le syst\u00e8me appropri\u00e9 d\u00e9pend de la pente, des dimensions et du mat\u00e9riau de la toiture, des conditions locales de neige et des zones situ\u00e9es sous la toiture qui doivent \u00eatre prot\u00e9g\u00e9es.<\/p>\n<h2>Pourquoi la neige peut-elle glisser d\u2019une toiture?<\/h2>\n<p>La neige peut adh\u00e9rer temporairement \u00e0 une toiture froide. Lorsque la temp\u00e9rature augmente ou que de la chaleur s\u2019\u00e9chappe du b\u00e2timent, une mince couche d\u2019eau de fonte peut se former sous la neige.<\/p>\n<p>Sur les mat\u00e9riaux de toiture lisses, particuli\u00e8rement le m\u00e9tal, la neige et la glace peuvent alors glisser de la toiture sous forme d\u2019une grande plaque. Cette chute soudaine est parfois appel\u00e9e avalanche de toiture.<\/p>\n<p>La neige et la glace qui tombent peuvent endommager :<\/p>\n<ul>\n<li>Goutti\u00e8res et descentes pluviales.<\/li>\n<li>Surfaces de toiture inf\u00e9rieures.<\/li>\n<li>V\u00e9hicules et \u00e9quipements ext\u00e9rieurs.<\/li>\n<li>Terrasses, garde-corps et escaliers ext\u00e9rieurs.<\/li>\n<li>Thermopompes et \u00e9quipements de climatisation.<\/li>\n<li>Am\u00e9nagement paysager et accessoires ext\u00e9rieurs.<\/li>\n<\/ul>\n<p>Elles peuvent aussi pr\u00e9senter un risque s\u00e9rieux pour la s\u00e9curit\u00e9 lorsque des personnes circulent, stationnent ou se rassemblent r\u00e9guli\u00e8rement sous le bord de la toiture.<\/p>\n<h2>O\u00f9 les pare-neige peuvent-ils \u00eatre particuli\u00e8rement importants?<\/h2>\n<p>La r\u00e9tention de neige est souvent envisag\u00e9e au-dessus de zones telles que :<\/p>\n<ul>\n<li>Entr\u00e9es principales et portes ext\u00e9rieures.<\/li>\n<li>All\u00e9es et escaliers.<\/li>\n<li>Entr\u00e9es de garage et aires de stationnement.<\/li>\n<li>Terrasses, patios et balcons.<\/li>\n<li>Sections de toiture inf\u00e9rieures.<\/li>\n<li>Compteurs de gaz et \u00e9quipements de services.<\/li>\n<li>Thermopompes et syst\u00e8mes m\u00e9caniques ext\u00e9rieurs.<\/li>\n<\/ul>\n<p>Installer des pare-neige uniquement au-dessus d\u2019une porte ou dans une petite section ne procure pas toujours une protection ad\u00e9quate. Les charges de neige peuvent se concentrer autour de pare-neige isol\u00e9s et endommager le syst\u00e8me ou le mat\u00e9riau de couverture.<\/p>\n<h2>Les pare-neige doivent \u00eatre correctement con\u00e7us<\/h2>\n<p>Un syst\u00e8me de r\u00e9tention de neige ne devrait pas \u00eatre choisi ou install\u00e9 uniquement selon son apparence. Le nombre, l\u2019espacement et la m\u00e9thode de fixation des composants devraient convenir \u00e0 la toiture et aux charges de neige pr\u00e9vues.<\/p>\n<p>Les facteurs pouvant influencer la conception comprennent :<\/p>\n<ul>\n<li>Pente et superficie totale de la toiture.<\/li>\n<li>Longueur de la toiture entre le fa\u00eete et l\u2019avant-toit.<\/li>\n<li>Type et \u00e9tat du mat\u00e9riau de couverture.<\/li>\n<li>Espacement des joints debout sur une toiture m\u00e9tallique.<\/li>\n<li>Accumulation de neige pr\u00e9vue.<\/li>\n<li>Emplacement des entr\u00e9es, all\u00e9es et \u00e9quipements situ\u00e9s en dessous.<\/li>\n<li>Capacit\u00e9 de la structure de toiture \u00e0 supporter la neige accumul\u00e9e.<\/li>\n<\/ul>\n<p>Un couvreur qualifi\u00e9 ou un sp\u00e9cialiste des syst\u00e8mes de r\u00e9tention de neige devrait d\u00e9terminer le produit et la configuration appropri\u00e9s. Les toitures de grande dimension ou de configuration inhabituelle peuvent n\u00e9cessiter l\u2019avis d\u2019un ing\u00e9nieur.<\/p>\n<h2>Probl\u00e8mes courants d\u2019installation de pare-neige<\/h2>\n<p>Lors d\u2019une inspection r\u00e9sidentielle, les pr\u00e9occupations visibles peuvent comprendre :<\/p>\n<ul>\n<li>Nombre insuffisant de pare-neige pour la superficie de la toiture.<\/li>\n<li>Pare-neige install\u00e9s uniquement \u00e0 des endroits isol\u00e9s.<\/li>\n<li>Composants desserr\u00e9s, pli\u00e9s ou manquants.<\/li>\n<li>Fixation inad\u00e9quate au mat\u00e9riau de toiture.<\/li>\n<li>Fixations traversant la toiture sans scellement appropri\u00e9.<\/li>\n<li>Pare-neige coll\u00e9s qui se d\u00e9tachent.<\/li>\n<li>Corrosion ou m\u00e9taux incompatibles.<\/li>\n<li>Dommages aux joints d\u2019une toiture m\u00e9tallique.<\/li>\n<li>Syst\u00e8mes positionn\u00e9s de fa\u00e7on \u00e0 diriger la neige vers un autre danger.<\/li>\n<\/ul>\n<p>Les dommages visibles ou une installation douteuse devraient \u00eatre \u00e9valu\u00e9s par un couvreur qualifi\u00e9.<\/p>\n<h2>Les pare-neige ne r\u00e9duisent pas les charges de neige<\/h2>\n<p>Les pare-neige servent \u00e0 contr\u00f4ler le glissement de la neige. Ils ne r\u00e9duisent pas le poids total de neige support\u00e9 par la toiture.<\/p>\n<p>Dans certaines situations, un syst\u00e8me de r\u00e9tention peut maintenir la neige plus longtemps sur la toiture. La structure doit donc pouvoir supporter cette charge accumul\u00e9e.<\/p>\n<p>Les signes pouvant justifier une \u00e9valuation professionnelle rapide comprennent :<\/p>\n<ul>\n<li>Affaissement visible de la toiture.<\/li>\n<li>Fissures ou mouvements inhabituels \u00e0 l\u2019int\u00e9rieur du b\u00e2timent.<\/li>\n<li>Portes devenues soudainement difficiles \u00e0 utiliser.<\/li>\n<li>Accumulations importantes ou in\u00e9gales de neige.<\/li>\n<li>Bruits ou mouvements r\u00e9p\u00e9t\u00e9s provenant de la structure de toiture.<\/li>\n<\/ul>\n<p>Les propri\u00e9taires ne devraient pas monter sur une toiture enneig\u00e9e. Le d\u00e9neigement peut endommager les mat\u00e9riaux de couverture et cr\u00e9er des risques de chute ou d\u2019avalanche. Lorsqu\u2019un d\u00e9neigement est n\u00e9cessaire, retenez les services d\u2019un entrepreneur exp\u00e9riment\u00e9 avec le syst\u00e8me de toiture.<\/p>\n<h2>Inspection d\u2019un syst\u00e8me de r\u00e9tention de neige<\/h2>\n<p>Une inspection r\u00e9sidentielle comprend une \u00e9valuation visuelle des composants de toiture accessibles. Lorsque des pare-neige ou des rails sont install\u00e9s, l\u2019inspecteur peut commenter leur \u00e9tat visible, leur fixation et leur disposition g\u00e9n\u00e9rale.<\/p>\n<p>L\u2019inspection ne confirme pas les calculs d\u2019ing\u00e9nierie, les fixations dissimul\u00e9es, la conformit\u00e9 aux exigences du fabricant ni la capacit\u00e9 du syst\u00e8me \u00e0 r\u00e9sister \u00e0 une charge de neige pr\u00e9cise.<\/p>\n<p>Lorsque l\u2019installation semble endommag\u00e9e, incompl\u00e8te ou mal configur\u00e9e, une \u00e9valuation plus approfondie par un couvreur qualifi\u00e9 ou le fabricant du syst\u00e8me peut \u00eatre recommand\u00e9e.<\/p>\n<h2>S\u00e9curit\u00e9 hivernale des toitures \u00e0 Ottawa, Gatineau et en Outaouais<\/h2>\n<p>Les maisons d\u2019Ottawa, de Gatineau et de l\u2019Outaouais sont soumises \u00e0 des accumulations r\u00e9p\u00e9t\u00e9es de neige, \u00e0 la pluie vergla\u00e7ante et aux cycles de gel et de d\u00e9gel. Les toitures m\u00e9talliques en pente peuvent lib\u00e9rer la neige soudainement, particuli\u00e8rement pendant les p\u00e9riodes de redoux.<\/p>\n<p>Les propri\u00e9taires devraient observer r\u00e9guli\u00e8rement les bords de toiture et les zones situ\u00e9es en dessous depuis un endroit s\u00e9curitaire. Gardez les entr\u00e9es et all\u00e9es d\u00e9gag\u00e9es, \u00e9vitez de stationner des v\u00e9hicules ou de placer de l\u2019\u00e9quipement sous les zones connues de glissement et faites corriger les pare-neige endommag\u00e9s avant la prochaine chute de neige importante.<\/p>\n<h2>Faites inspecter votre toiture et vos syst\u00e8mes ext\u00e9rieurs<\/h2>\n<p>Une inspection professionnelle peut aider \u00e0 rep\u00e9rer des pr\u00e9occupations visibles li\u00e9es aux mat\u00e9riaux de toiture, aux solins, aux goutti\u00e8res, au drainage, aux composants de r\u00e9tention de neige et aux zones situ\u00e9es sous le bord de toiture.<\/p>\n<p>Inspec-Pro Inspection r\u00e9sidentielle offre des inspections r\u00e9sidentielles d\u00e9taill\u00e9es partout \u00e0 Ottawa, Gatineau, en Outaouais et dans les communaut\u00e9s environnantes.<\/p>\n<p>Appelez <a href=\"tel:+18199625880\">819-962-5880<\/a>, par courriel \u00e0 <a href=\"mailto:info@inspec-pro.ca\">info@inspec-pro.ca<\/a>, ou <a href=\"https:\/\/www.inspec-pro.ca\/fr\/contact-us\/?scroll=form\"><strong>obtenir une soumission d\u2019inspection pour votre propri\u00e9t\u00e9<\/strong><\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Snow guards and roof snow retention systems are installed on sloped roofs to help control the sudden release of accumulated snow and ice. They are commonly found on metal roofs, where snow can slide from the roof surface with little warning. When properly designed and installed, a snow retention system helps hold snow in place [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":554,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"footnotes":""},"categories":[31],"tags":[54,53,52,55],"class_list":["post-309","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-home-inspection-tips","tag-metal-roof-safety","tag-snow-guards","tag-snow-retention-systems","tag-winter-home-maintenance"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Roof Snow Retention Systems | Ottawa &amp; Gatineau<\/title>\n<meta name=\"description\" content=\"Learn how snow guards and roof snow retention systems help control sliding snow and ice on homes in Ottawa, Gatineau and Outaouais.\" \/>\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.inspec-pro.ca\/fr\/snow-retention-systems\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Roof Snow Retention Systems | Ottawa &amp; Gatineau\" \/>\n<meta property=\"og:description\" content=\"Learn how snow guards and roof snow retention systems help control sliding snow and ice on homes in Ottawa, Gatineau and Outaouais.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.inspec-pro.ca\/fr\/snow-retention-systems\/\" \/>\n<meta property=\"og:site_name\" content=\"Inspec-Pro Home Inspection\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/inspecpro.ca\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-16T11:59:46+00:00\" \/>\n<meta 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