{"id":2146,"date":"2020-03-18T12:23:14","date_gmt":"2020-03-18T11:23:14","guid":{"rendered":"https:\/\/www.opus-dry.it\/solutions\/umidita-di-costruzione\/"},"modified":"2024-03-07T16:06:20","modified_gmt":"2024-03-07T15:06:20","slug":"humidite-de-chantier","status":"publish","type":"page","link":"https:\/\/www.opus-dry.fr\/solutions\/humidite-de-chantier\/","title":{"rendered":"Humidit\u00e9 de chantier"},"content":{"rendered":"

[vc_row row_type=\u00a0\u00bbrow_full_center_content\u00a0\u00bb margin_bottom=\u00a0\u00bb20″ padding_bottom=\u00a0\u00bb0″][vc_column width=\u00a0\u00bb1\/2″ el_class=\u00a0\u00bbrelative\u00a0\u00bb][vc_column_text css=\u00a0\u00bb.vc_custom_1584956283315{margin-bottom: 20px !important;}\u00a0\u00bb]L’humidit\u00e9 r\u00e9siduelle ou humidit\u00e9 de construction est l’humidit\u00e9 encore pr\u00e9sente dans les travaux de construction en raison de l’\u00e9vaporation incompl\u00e8te de l’eau pr\u00e9sente dans de nombreux mat\u00e9riaux de construction (mortiers, enduits, rev\u00eatements, etc.) utilis\u00e9s pour sa construction ou sa r\u00e9novation. Elle peut varier selon l’\u00e2ge du b\u00e2timent.<\/strong><\/p>\n

L’humidit\u00e9 de construction se manifeste surtout si les temps de ventilation corrects des espaces<\/strong>, pr\u00e9vus par les r\u00e9glementations de construction et d’hygi\u00e8ne en vigueur pendant les travaux, ne sont pas respect\u00e9s. Pendant ces interventions, les mat\u00e9riaux de construction retiennent longtemps les liquides, surtout si les travaux progressent sans respecter les temps de s\u00e9chage de l’\u00e9tape pr\u00e9c\u00e9dente.<\/p>\n

Si votre maison a \u00e9t\u00e9 construite il y a moins de 12 mois, il est tr\u00e8s probable qu’il y ait de l’humidit\u00e9 r\u00e9siduelle.<\/strong><\/p>\n

Les principaux ph\u00e9nom\u00e8nes visibles pour v\u00e9rifier sa pr\u00e9sence sont des moisissures sur les murs et une humidit\u00e9 \u00e9lev\u00e9e dans l’air int\u00e9rieur<\/strong>, souvent accompagn\u00e9e d’une odeur d\u00e9sagr\u00e9able.<\/p>\n

Selon des statistiques document\u00e9es bas\u00e9es sur l’analyse de centaines de nouvelles habitations, r\u00e9alis\u00e9es par des enqu\u00eates instrumentales appropri\u00e9es et sophistiqu\u00e9es, 80% d’entre elles ont pr\u00e9sent\u00e9 de l’humidit\u00e9 r\u00e9siduelle de construction.<\/p>\n

Dans les habitations r\u00e9nov\u00e9es, ce pourcentage n’\u00e9tait que de 5% (donc dans les 95% restants des cas coexistent les autres diff\u00e9rents types d’humidit\u00e9 jusqu’ici illustr\u00e9s).<\/p>\n

Il n’existe pas de rem\u00e8de imm\u00e9diat \u00e0 l’humidit\u00e9 r\u00e9siduelle des travaux de construction.<\/strong><\/p>\n

La meilleure intervention \u00e0 r\u00e9aliser est d’attendre la d\u00e9shumidification naturelle des murs et des autres ouvrages.<\/strong><\/p>\n

Dans des conditions normales, en effet, l’humidit\u00e9 r\u00e9siduelle dispara\u00eet spontan\u00e9ment par \u00e9vaporation en fonction des \u00ab\u00a0temps de s\u00e9chage\u00a0\u00bb<\/strong> qui peuvent \u00eatre calcul\u00e9s, bien que de mani\u00e8re approximative, sur la base des \u00e9l\u00e9ments \u00e9voqu\u00e9s dans l’image.[\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2″][vc_single_image image=\u00a0\u00bb1250″ img_size=\u00a0\u00bblarge\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb onclick=\u00a0\u00bbzoom\u00a0\u00bb][\/vc_column][\/vc_row][vc_row row_type=\u00a0\u00bbrow_full_center_content\u00a0\u00bb margin_top=\u00a0\u00bb30px\u00a0\u00bb margin_bottom=\u00a0\u00bb0″ padding_top=\u00a0\u00bb0″ padding_bottom=\u00a0\u00bb0″][vc_column el_class=\u00a0\u00bbrelative\u00a0\u00bb][vc_media_grid element_width=\u00a0\u00bb3″ gap=\u00a0\u00bb15″ item=\u00a0\u00bb289″ grid_id=\u00a0\u00bbvc_gid:1709823829276-c944fd00-ac50-7″ include=\u00a0\u00bb918,909,912,915″ el_class=\u00a0\u00bballignBottom\u00a0\u00bb][\/vc_column][\/vc_row][vc_row row_type=\u00a0\u00bbrow_full_center_content\u00a0\u00bb][vc_column][vc_column_text]Le s\u00e9chage d\u00e9pend d’un {tooltip}coefficient (p<\/strong>){end-texte}\"\"{end-tooltip}, caract\u00e9ristique pour chaque type de ma\u00e7onnerie, et de l’\u00e9paisseur (s<\/strong>), de la ma\u00e7onnerie elle-m\u00eame (exprim\u00e9e en centim\u00e8tres).<\/p>\n

Le temps (t<\/strong>) n\u00e9cessaire, exprim\u00e9 en jours, requis pour qu’une structure s\u00e8che en perdant son humidit\u00e9 de construction est proportionnel au carr\u00e9 de son \u00e9paisseur :<\/p>\n

t <\/strong>= p <\/strong>x s2<\/sup><\/strong><\/h1>\n

[\/vc_column_text][vc_single_image image=\u00a0\u00bb902″ img_size=\u00a0\u00bbfull\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1584531029601{margin-top: 40px !important;}\u00a0\u00bb][vc_column_text]Exemple : Le Ch\u00e2teau Sforzesco de Milan, a certaines murs atteignant des \u00e9paisseurs jusqu’\u00e0 3 m\u00e8tres, donc :<\/strong><\/p>\n

t = p x s2<\/strong>
\nt = 1,2 x 3002
\nt = 1,2 x 90.000
\nt = 108.000 jours<\/p>\n

t = 296 ans !!!<\/strong><\/h2>\n

[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

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