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一般这种deck和下面的roof之间靠一种membrane来隔水。membrane本身是有使用年龄的,到了时间就需要更换。下面是我最近在研究另一个房子(也有类似这种roof-top waterproof decks)时,在和中介交流时做的一点研究。楼主可以参考一下。具体情况还是找专业人员看了之后,帮你解释最好。
”The issue around the guttering was not actually the gutters themselves but that the membrane under the deck reached the end of its lifespan which caused water to flow between the gutters and the side of the property below. As I mentioned the owners have undergone extensive remedial work to not only fix that issue but completely renovate the decking and balustrades which has added significant value to the property.“
”I also did some research about roof-top waterproof decks. It seems that such a deck installed over habitable spaces, tends to incorporate a waterproof membrane that is installed over a timber substrate. They have a high risk of weathertightness failure as they are really just a low pitch roof surface that can collect substantial amounts of water that needs to be drained. Any leak through them may result in water entering directly into the building. The larger size and the complex design (internal gutter, drainage scuppers and solid handrails) are hassles, unless they are open-ended waterproof decks, other than fully enclosed decks. “
source: https://www.weathertight.org.nz/ ... il-solutions/decks/ |
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