{"id":76296,"date":"2010-09-16T00:00:00","date_gmt":"2010-09-15T22:00:00","guid":{"rendered":"http:\/\/b.bati-journal.com\/rome-ravalement-a-la-chaux-au-palais-borghese\/76296"},"modified":"2019-07-15T11:19:37","modified_gmt":"2019-07-15T09:19:37","slug":"rome-ravalement-a-la-chaux-au-palais-borghese","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/rome-ravalement-a-la-chaux-au-palais-borghese\/76296\/","title":{"rendered":"Rome\u00a0: ravalement \u00e0 la chaux au palais Borgh\u00e8se"},"content":{"rendered":"<p>Le projet de remise en \u00e9tat de cet imposant \u00e9difice comportait plusieurs phases : restauration des grandes portes d\u0092entr\u00e9e en bois ainsi que des balustrades, vernissage des ouvrages en fer forg\u00e9, r\u00e9fection et imperm\u00e9abiliation des toitures, restauration et parfois restitution \u00e0 l\u0092identique de pi\u00e8ces de mobilier, et ravalement des fa\u00e7ades.<\/p>\n<p><span style=\u201cfont-weight: bold;\u201c>Un palais charg\u00e9 d\u0092histoire<\/span><br \/>Le palais \u00adBorgh\u00e8se \u0096 qu\u0092il ne faut pas confondre avec la villa \u00adBorgh\u00e8se \u0096 a \u00e9t\u00e9 construit pour le cardinal \u00adCamillo \u00adBorghese au d\u00e9but du XVIIe si\u00e8cle. Ses dimensions imposantes en firent, \u00e0 l\u0092\u00e9poque, le plus imposant des palais de la ville. Le portique de la cour int\u00e9rieure, soutenu par 96 colonnes de granit, est remarquable. La fa\u00e7ade, elle, est plus aust\u00e8re, quoique d\u00e9cor\u00e9e de reliefs au-dessus de la porte principale. On doit la forme si particuli\u00e8re du b\u00e2timent \u00e0 deux ordres de loggias superpos\u00e9s, qui l\u0092ont fait surnommer \u00ab le clavecin \u00bb (Il cembalo), \u00e0 \u00adMartino \u00adLonghi. Les \u00adLonghi sont une longue lign\u00e9e d\u0092architectes s\u0092\u00e9talant sur trois g\u00e9n\u00e9rations, qui commence avec \u00adMartino \u00adLonghi l\u0092Ancien (1534-1591),originaire de Viggiu mais qui travailla \u00e0 Rome, et \u00e0 qui l\u0092on doit notamment l\u0092\u00e9glise de San Girolamo degli Schiavoni, b\u00e2tie sur ordre du pape Sixte V, se poursuit avec \u00adOnorio \u00adLonghi (1568-1619) et s\u0092ach\u00e8ve avec \u00adMartino \u00adLonghi le Jeune (1602-1660).<br \/><span style=\u201cfont-weight: bold;\u201c>Les premiers travaux en fa\u00e7ade<\/span><br \/>En fa\u00e7ade, les enduits anciens \u00e9taient tr\u00e8s d\u00e9grad\u00e9s. Les travaux ont commenc\u00e9 par leur \u00e9limination, suivie d\u0092un lavage \u00e0 l\u0092eau sous haute pression des surfaces \u00e0 traiter. Puis, les murs ont fait l\u0092objet d\u0092une premi\u00e8re application d\u0092une couche de mortier \u00e0 base de chaux hydrauliques naturelles Rabot (NHL 5 CE) de Socli. Ces produits permettent la r\u00e9alisation de mortiers traditionnels, particuli\u00e8rement appr\u00e9ci\u00e9s des restaurateurs du b\u00e2ti ancien. La prise hydraulique, puis a\u00e9rienne, prolong\u00e9e dans le temps, \u00e9vite le fa\u00efen\u00e7age et les fissurations. Plusieurs couches successives de mortier ont ensuite \u00e9t\u00e9 appliqu\u00e9es sur le palais Borghese. Rappelons que Socli est la filiale fran\u00e7aise chaux de Ciments Calcia, du groupe Italcementi. En 2008, l\u0092entreprise \u0096 qui compte six sites en France, implant\u00e9s au centre des r\u00e9gions Midi-Pyr\u00e9n\u00e9es, Languedoc-Roussillon et Aquitaine \u0096 a produit 292000t de chaux.<\/p>\n<p><span style=\u201cfont-weight: bold;\u201c>Finitions et colorations<\/span><br \/>Apr\u00e8s les applications d\u0092enduit, il a \u00e9t\u00e9 r\u00e9alis\u00e9 plusieurs couches de San Tommaso de Socli, une formulation \u00e0 base de chaux grasse, cas\u00e9ine naturelle, carbonates, mica, bentonite, vinaigre, blanc d\u0092\u009cuf, glyc\u00e9rine, poudre de marbre, entre autres ingr\u00e9dients, permettant une bonne accroche des finitions. Cette finition, justement, est ici mise en \u009cuvre avec la Velatura, une peinture \u00e0 l\u0092eau tr\u00e8s dilu\u00e9e ne g\u00eanant pas les \u00e9changes gazeux dans les murs. Dans cet autre produit de la gamme Socli, on trouve de l\u0092eau de chaux, du lait, du blanc d\u0092oeuf, du vinaigre, des huiles essentielles, un bact\u00e9ricide exempt de formald\u00e9hyde. Enfin, la fa\u00e7ade a re\u00e7u une couche finale de protection. Quant \u00e0 la r\u00e9fection des plinthes humides \u00e0 la base des murs, elles a \u00e9t\u00e9 effectu\u00e9e en utilisant des mortiers de chaux, qui favorisent la r\u00e9gulation de l\u0092hygrom\u00e9trie et contribuent \u00e0 la r\u00e9duction des remont\u00e9es des sels.\b<\/p>\n<p>Les acteurs du chantier<br \/>Ma\u00eetrise d\u0092ouvrage : Ville de Rome<br \/>Ma\u00eetrise d\u0092\u009cuvre : Mario et Fabio Baldini, architectes<br \/>Entreprise de restauration :<br \/>TechnoArc<br \/>Coordination du chantier :<br \/>Renzo Biagioni, g\u00e9om\u00e8tre<br \/>Chef de chantier : Elio del Giudice, ing\u00e9nieur<br \/>Mat\u00e9riaux de restauration de la fa\u00e7ade :<br \/>Socli (Italcementi Group)<\/p>\n<p><span style=\u201cfont-weight: bold;\u201c>La puissante famille Borgh\u00e8se<\/span><br \/>La famille \u00adBorgh\u00e8se, qui orna Rome d\u0092\u00e9difices remarquables renfermant des collections extraordinaires, est originaire de Sienne. Les animaux h\u00e9raldiques qu\u0092elle avait choisis pour son blason et la d\u00e9coration du palais, l\u0092aigle et le dragon, en disent long sur son attrait affirm\u00e9 du pouvoir, et, effectivement, sa r\u00e9ussite sociale, politique et financi\u00e8re fut consid\u00e9rable. Les \u00adBorghese furent au fil des si\u00e8cles de grands m\u00e9c\u00e8nes : par exemple, le c\u00e9l\u00e8bre David au visage tendu et tourment\u00e9 fut command\u00e9 \u00e0 Gian \u00adLorenzo \u00adBernini, en 1623, par le cardinal \u00adScipione \u00adBorghese, collectionneur passionn\u00e9 jusqu\u0092\u00e0 l\u0092obsession, neveu de \u00adCamillo \u00adBorghese devenu pape en 1605 sous le nom de Paul V. Le sculpteur, dont le nom allait marquer l\u0092histoire de l\u0092art, avait alors vingt-cinq ans.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le projet de remise en \u00e9tat de cet imposant \u00e9difice comportait plusieurs phases : restauration des grandes portes d\u0092entr\u00e9e en bois ainsi que des balustrades, vernissage des ouvrages en fer forg\u00e9, r\u00e9fection et imperm\u00e9abiliation des toitures, restauration et parfois restitution \u00e0 l\u0092identique de pi\u00e8ces de mobilier, et ravalement des fa\u00e7ades. Un palais charg\u00e9 d\u0092histoireLe palais [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[6340],"tags":[],"class_list":["post-76296","post","type-post","status-publish","format-standard","hentry","category-architecture-conception"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rome\u00a0: ravalement \u00e0 la chaux au palais Borgh\u00e8se<\/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:\/\/batijournal.com\/index.php\/rome-ravalement-a-la-chaux-au-palais-borghese\/76296\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rome\u00a0: ravalement \u00e0 la chaux au palais Borgh\u00e8se\" \/>\n<meta property=\"og:description\" content=\"Le projet de remise en \u00e9tat de cet imposant \u00e9difice comportait plusieurs phases : restauration des grandes portes d\u0092entr\u00e9e en bois ainsi que des balustrades, vernissage des ouvrages en fer forg\u00e9, r\u00e9fection et imperm\u00e9abiliation des toitures, restauration et parfois restitution \u00e0 l\u0092identique de pi\u00e8ces de mobilier, et ravalement des fa\u00e7ades. 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