\nLe dimensionnement des installations est effectu\u00e9 en tenant compte des intensit\u00e9s pluviom\u00e9triques minimales, les valeurs \u00e0 consid\u00e9rer sont :
\n\u2022 3 L\/MIN\/M\u00b2 (0,05 L\/S\/M\u00b2) en France m\u00e9tropolitaine.
\n\u2022 4,5 L\/MIN\/M\u00b2 (0,075 L\/S\/ M\u00b2) pour les DOM.<\/p>\n
Ne pas confondre :<\/strong> Le d\u00e9bit admissible dans une goutti\u00e8re ou un ch\u00e9neau ext\u00e9rieur d\u00e9pend :<\/strong> Source : \u00ab TTA Mag \u00bb n\u00b0 2.<\/p>\n","protected":false},"excerpt":{"rendered":" APR\u00c8S L\u2019\u00c9VACUATION DES EAUX PLUVIALES (VOIR \u00ab TOITURE MAGAZINE \u00bb N\u00b0 19), NOUS CONTINUONS L\u2019EXAMEN DES DOCUMENTS TECHNIQUES UNIFI\u00c9S AVEC LA NORME NF DTU 60.11. Ce qu\u2019il faut savoir Le dimensionnement des installations est effectu\u00e9 en tenant compte des intensit\u00e9s pluviom\u00e9triques minimales, les valeurs \u00e0 consid\u00e9rer sont : \u2022 3 L\/MIN\/M\u00b2 (0,05 L\/S\/M\u00b2) en […]<\/p>\n","protected":false},"author":5,"featured_media":2147,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/posts\/2142"}],"collection":[{"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/comments?post=2142"}],"version-history":[{"count":2,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/posts\/2142\/revisions"}],"predecessor-version":[{"id":2150,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/posts\/2142\/revisions\/2150"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/media\/2147"}],"wp:attachment":[{"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/media?parent=2142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/categories?post=2142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.toituremagazine.com\/wp-json\/wp\/v2\/tags?post=2142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nLa vitesse d\u2019\u00e9coulement<\/strong><\/em> de l\u2019eau de pluie sur un versant (la pente qui d\u00e9termine le recouvrement des mat\u00e9riaux).
\nLa quantit\u00e9 d\u2019eau<\/strong><\/em> de pluie \u00e0 \u00e9vacuer dans le syst\u00e8me (qui influe sur les sections des ch\u00e9neaux, goutti\u00e8res et tuyaux d\u2019\u00e9vacuation des eaux pluviales).
\nQuelle que soit la pente des versants<\/strong><\/em>, la quantit\u00e9 d\u2019eaud\u00e9vers\u00e9e sur le toit est la m\u00eame.
\nLe calcul prend en compte la surface en plan du (ou des) versant(s).<\/p>\n
\n\u2022 De sa pente, de sa section, de sa forme, de sa longueur.
\n\u2022 Les ch\u00e9neaux et goutti\u00e8res pos\u00e9s avec une pente inf\u00e9rieure ou \u00e9gale \u00e0 3 mm\/m sont consid\u00e9r\u00e9s comme pente nulle.
\n\u2022 Pour les ch\u00e9neaux et goutti\u00e8res de forme carr\u00e9e ou rectangulaire, les sections sont augment\u00e9es de 10 % (calcul simplifi\u00e9).
\n\u2022 Pour les ch\u00e9neaux et goutti\u00e8res de forme triangulaire, les sections sont augment\u00e9es de 20 % (calcul simplifi\u00e9![](\"https:\/\/export-download.canva.com\/2pO_o\/DAE7n02pO_o\/28\/0\/0001-21817355071.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJHKNGJLC2J7OGJ6Q%2F20220321%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20220321T044919Z&X-Amz-Expires=45119&X-Amz-Signature=3fd1442e20319f1bbdc326cce50855f87d2c2d4c2ad27d597ad507c9bf8261b5&X-Amz-SignedHeaders=host&response-content-disposition=attachment%3B%20filename%2A%3DUTF-8%27%27Copie%2520de%2520AG%2520-%2520APPEL%2520A%2520PROJET2.jpg&response-expires=Mon%2C%2021%20Mar%202022%2017%3A21%3A18%20GMT\")
<\/p>\n![](\"https:\/\/export-download.canva.com\/2pO_o\/DAE7n02pO_o\/40\/0\/0001-21818653465.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJHKNGJLC2J7OGJ6Q%2F20220320%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20220320T201450Z&X-Amz-Expires=73677&X-Amz-Signature=1656942b1caea43e517c535ec3bab68d8c442ad677d52088989ecca24cc3bd12&X-Amz-SignedHeaders=host&response-content-disposition=attachment%3B%20filename%2A%3DUTF-8%27%27Copie%2520de%2520AG%2520-%2520APPEL%2520A%2520PROJET2.jpg&response-expires=Mon%2C%2021%20Mar%202022%2016%3A42%3A47%20GMT\")
<\/div>\n![](\"https:\/\/export-download.canva.com\/2pO_o\/DAE7n02pO_o\/38\/0\/0001-21818556578.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJHKNGJLC2J7OGJ6Q%2F20220320%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20220320T213753Z&X-Amz-Expires=70778&X-Amz-Signature=059b8a1646b39b3a2c6ffe103499407130d2f92ed8cfef8f47d4675541e4a7ce&X-Amz-SignedHeaders=host&response-content-disposition=attachment%3B%20filename%2A%3DUTF-8%27%27Copie%2520de%2520AG%2520-%2520APPEL%2520A%2520PROJET2.jpg&response-expires=Mon%2C%2021%20Mar%202022%2017%3A17%3A31%20GMT\")
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