{"id":40963,"date":"2022-08-07T17:07:36","date_gmt":"2022-08-07T16:07:36","guid":{"rendered":"https:\/\/spassio.com\/glossary\/valeur-u-w-m2k\/"},"modified":"2023-05-08T16:18:07","modified_gmt":"2023-05-08T15:18:07","slug":"valeur-u-w-m2k","status":null,"type":"glossary","link":"https:\/\/spassio.com\/fr\/glossary\/valeur-u-w-m2k\/","title":{"rendered":"Valeur U (W\/m2K)"},"content":{"rendered":"<p>La transmission thermique (valeur U) ou le coefficient de transfert de chaleur est une norme internationale qui permet de mesurer la chaleur transf\u00e9r\u00e9e \u00e0 travers l&#8217;<a href=\"https:\/\/spassio.com\/fr\/glossary\/enveloppe-du-batiment\/\">enveloppe du b\u00e2timent<\/a>. Exprim\u00e9e en watts par m\u00e8tre carr\u00e9-kelvin, elle indique la capacit\u00e9 d&#8217;isolation d&#8217;un \u00e9l\u00e9ment de construction. Bien qu&#8217;une valeur U plus faible indique une bonne isolation de l&#8217;\u00e9l\u00e9ment de construction, il est utile de conna\u00eetre les pertes de chaleur en hiver et les apports en \u00e9t\u00e9.<\/p>\n<p>Les r\u00e9glementations nationales limitent la valeur U en fonction des zones climatiques et de l&#8217;orientation solaire de la maison.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La transmission thermique (valeur U) ou le coefficient de transfert de chaleur est une norme internationale qui permet de mesurer la chaleur transf\u00e9r\u00e9e \u00e0 travers l&#8217;enveloppe du b\u00e2timent. Exprim\u00e9e en watts par m\u00e8tre carr\u00e9-kelvin, elle indique la capacit\u00e9 d&#8217;isolation d&#8217;un \u00e9l\u00e9ment de construction. Bien qu&#8217;une valeur U plus faible indique une bonne isolation de l&#8217;\u00e9l\u00e9ment [&hellip;]<\/p>\n","protected":false},"author":183,"featured_media":0,"menu_order":0,"template":"","meta":{"content-type":"","_FSMCFIC_featured_image_caption":"","_FSMCFIC_featured_image_nocaption":"","_FSMCFIC_featured_image_hide":"","footnotes":""},"class_list":["post-40963","glossary","type-glossary","status-publish","hentry"],"_wp_attached_file":null,"_wp_attachment_metadata":null,"_wp_attachment_backup_sizes":null,"siteground_optimizer_webp_conversion_attempts":null,"siteground_optimizer_is_converted_to_webp":null,"siteground_optimizer_optimization_attempts":null,"siteground_optimizer_optimization_failed":null,"wpml_media_processed":null,"_wp_attachment_image_alt":null,"siteground_optimizer_is_optimized":null,"siteground_optimizer_webp_conversion_failed":null,"siteground_optimizer_original_filesize":null,"_elementor_source_image_hash":null,"siteground_optimizer_compression_level":null,"_imagify_optimization_level":null,"_imagify_status":null,"_imagify_data":null,"wpse_external_file_url":null,"fave_currency":null,"fave_currency_info":null,"fave_property_id":null,"fave_property_map":null,"fave_property_location":null,"houzez_geolocation_lat":null,"houzez_geolocation_long":null,"fave_property_map_street_view":null,"fave_featured":null,"fave_loggedintoview":null,"fave_agent_display_option":null,"fave_property_agency":null,"fave_prop_homeslider":null,"fave_single_top_area":null,"fave_single_content_area":null,"houzez_manual_expire":null,"_houzez_expiration_date_status":null,"_yoast_wpseo_primary_property_country":null,"fave_property_size_prefix":null,"fave_property_land_postfix":null,"fave_construction-type":null,"houzez_total_property_views":null,"houzez_views_by_date":null,"houzez_recently_viewed":null,"fave_property_price":null,"fave_property_size":null,"fave_property_land":null,"fave_property_bedrooms":null,"fave_property_bathrooms":null,"fave_levels":null,"fave_roof-angle":null,"_yoast_wpseo_primary_property_type":null,"_yoast_wpseo_primary_property_label":null,"fave_countries":null,"_yoast_wpseo_primary_property_feature":null,"fave_property_images":null,"fave_gross-external-area":null,"fave_payment_status":null,"fave_video_url":null,"fave_video_image":null,"fave_roof-type":null,"fave_sleeps":null,"fave_property_price_prefix":null,"fave_property_price_postfix":null,"_yoast_wpseo_primary_feature-2":null,"_yoast_wpseo_primary_property_status":null,"fave_property_garage":null,"_oembed_4cef7884ea6ef16d48cd8675b12e440d":null,"fave_property_garage_size":null,"additional_features":null,"floor_plans":null,"fave_multi_units":null,"fave_virtual_tour":null,"houzez_featured_listing_date":null,"fave_window-glazing":null,"fave_building-time-in-days":null,"fave_warranty-in-years":null,"fave_multi_units_ids":null,"fave_attachments":null,"_air_wp_sync_record_id":null,"_air_wp_sync_hash":null,"_air_wp_sync_importer_id":null,"_air_wp_sync_updated_at":null,"fave_property_map_address":null,"external_listing_link":null,"fave_mortgage_cal":null,"fave_production-time-in-weeks":null,"wpsebeba57d406-00de-d339-8c02-3956a916f506":null,"_oembed_a17db82fa378d53b4dc6ed46e5344499":null,"_oembed_da390569a339f4d7147d95cfb8c04c12":null,"_oembed_6a3eda5947bcc098660397ca8e21a941":null,"fave_seo-content":null,"_oembed_a7b8941eeee966e7350aede20b4d62be":null,"_oembed_time_a7b8941eeee966e7350aede20b4d62be":null,"_oembed_5c1eaf7b40f4e3a3089b38beb88ba480":null,"fave_property_rooms":null,"_yoast_wpseo_primary_feature-3":null,"two_page_speed":null,"fave_property_year":null,"_oembed_5b2d8d2cf33b469c98e488ea5b118c30":null,"_yoast_wpseo_metadesc":"La transmission thermique (valeur U) ou le coefficient de transfert de chaleur est une norme internationale qui permet de mesurer la chaleur transf\u00e9r\u00e9e \u00e0 travers l'enveloppe du b\u00e2timent.","_yoast_wpseo_title":null,"technical_description":null,"_links":{"self":[{"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/glossary\/40963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/users\/183"}],"version-history":[{"count":0,"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/glossary\/40963\/revisions"}],"wp:attachment":[{"href":"https:\/\/spassio.com\/fr\/wp-json\/wp\/v2\/media?parent=40963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}