{"id":8862,"date":"2024-05-06T11:59:48","date_gmt":"2024-05-06T03:59:48","guid":{"rendered":"https:\/\/www.dahsin.com.tw\/?p=8287"},"modified":"2024-08-14T16:30:29","modified_gmt":"2024-08-14T08:30:29","slug":"100qa13","status":"publish","type":"post","link":"https:\/\/www.daisin.com.tw\/en\/100qa13\/","title":{"rendered":"(One Hundred Questions on Waterproofing) #13: Some roofs leak water; when it rains, it doesn't leak; but when the weather clears, the water leaks again. Why is that?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Answer: To discuss this issue, we first need to consider the \"characteristics of water.\" Generally speaking, rainwater passes through the thermal insulation layer on the roof and along the damaged area of the waterproof layer, accumulating on the surface of the structure. However, after the sun shines and the temperature rises, due to the small amount of rainwater that has infiltrated, it becomes water vapor, which generates a large amount of pressure. This causes the waterproof layer to rapidly deteriorate from point to point (causing phenomena such as swelling, bulging, cracking, etc.). A portion of this rainwater leaks out along the areas of structural defects (such as cracks, honeycomb patterns, intersections, and the surrounding areas of drainage pipes...). This phenomenon is most likely to occur in cases such as flat oil-coated felt or waterproof membranes, which also confirms two key points:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[1] The importance of \"bonding\" between the waterproof material and the construction surface.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[2] Waterproof materials are best applied directly to the structure (or the overall surface of the paint).<\/p>","protected":false},"excerpt":{"rendered":"<p>\u7b54\uff1a\u8981\u8a0e\u8ad6\u9019\u500b\u554f\u984c\u9808\u5148\u8003\u616e\u5230\u301d\u6c34\u7684\u7279\u6027\u301e\uff0c\u4e00\u822c\u800c\u8a00\uff0c\u96e8\u6c34\u7d93\u904e\u5c4b\u9762\u9694\u71b1\u5c64\u518d \u6cbf\u8457\u9632\u6c34\u5c64\u7834\u640d\u8655\uff0c\u6de4\u6f2c\u5728\u7d50\u69cb\u9ad4\u7684\u8868\u9762 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[70],"class_list":["post-8862","post","type-post","status-publish","format-standard","hentry","category-100qa","tag-qa"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/posts\/8862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/comments?post=8862"}],"version-history":[{"count":0,"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/posts\/8862\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/media?parent=8862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/categories?post=8862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.daisin.com.tw\/en\/wp-json\/wp\/v2\/tags?post=8862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}