金屬屋麵防水zhuanjiajiechuguogezhongleixingdeduokuagongyechangfang
，weishiwumianyushuipaishuixitongshejizaichangfangshiyongqijiandadaolianghaodexiaoguo，xuyaojingxinshejihelianghaodegoutongxietiao，xiancongyixiajigefangmiantantanzijidexiangfahetihui。

　　1 關於屋麵自我保護防水材料的選擇

　　多跨工業聯合廠房屋麵是否采用具備自我保護功能的防水材料
，shizaixiangmufanganshejijieduanyinggaiquedingdewenti，zheduishejiwumianyushuipaishuixitongdecanshuquzhihepaishuifangshizhiguanzhongyao。jinnianlai，suizhequanqiuqihoudebiannuan，bainianyiyudebaoyujingchangbuqierzhi，ergongyechangfangwumiandebaoyuzhongxianqiyibanshejiwei10年，這顯然不能應對極端天氣。通過大量的研究和實際項目經驗證明，即使囿於初期投資成本的限製，鋼結構屋麵應優先選擇鋼護寶屋麵防水材料，這樣可以有效降低屋麵雨水滲漏的風險。工程上可供選擇的鋼護寶金屬屋麵防水材料有防水塗料
、紡fang織zhi型xing聚ju酯zhi布bu等deng
，可ke根gen據ju項xiang目mu的de投tou資zi情qing況kuang選xuan擇ze。實shi際ji做zuo項xiang目mu的de過guo程cheng中zhong，甲jia方fang一yi般ban對dui屋wu麵mian雨yu水shui的de問wen題ti重zhong視shi度du不bu夠gou
，給gei排pai水shui工gong程cheng師shi即ji使shi及ji時shi提ti出chu了le設she計ji方fang的de想xiang法fa和he設she計ji理li念nian

，但dan往wang往wang由you於yu增zeng加jia了le不bu少shao成cheng本ben而er不bu得de不bu屈qu服fu於yu甲jia方fang的de意yi誌zhi。到dao了le廠chang房fang使shi用yong期qi間jian，一yi旦dan出chu現xian了le超chao過guo設she計ji暴bao雨yu重zhong現xian期qi的de雨yu水shui，極ji易yi引yin起qi廠chang房fang漏lou雨yu甚shen至zhi屋wu麵mian坍tan塌ta，由you此ci帶dai來lai的de損sun失shi遠yuan遠yuan大da於yu卷材防水屋麵的投資成本。總之，在項目設計階段應聯合建築專業努力說服甲方采用鋼護寶金屬屋麵防水係統，而不要因小失大。

　　2 關於重力流外排水和重力流內排水係統的選擇

　　從安全角度出發，所有建築物屋麵雨水排水應優先考慮采用外排水係統。外排水係統的優點在於：簡單、經濟、安全
、bianyushigongweixiu。duokuagongyelianhechangfangyouyutateshudexingtihegouzao，waipaishuixitongbunengyongyupaichuhuozhebunengquanbupaichuqiwumiandeyushui，zhejiuxuyaocaiyongneipaishuixitong。neipaishuixitongshiwaipaishuixitongbunengcaiyongshiyizhongtidaibanfa，neipaishuixitongcunzaizhuduobibing：①內排水係統需要室內埋地管道和密閉式檢查井
，檢修困難，檢查井如果施工處理不好，會引起檢查井冒水的情況；②埋地雨水管道管徑較大

，難免與結構基礎發生衝突而引起埋深增加
；③埋地管道要考慮通氣；④ruguocaiyongxuandiaoguanpaishui，guanjingdaqiexuyaoyidingdepodu，guandaozhanyongjiaodadekongjian，keguanshanghuizengjiachangfanggaodu。yinerzaizuidadekenengfanweineiyingcaiyongwaipaishuixitong，chufeizaiwaipaishuixitongwufajiejuedequyunei，fangkecaiyongneipaishuixitongpaichugaiquyuneidewumianyushui。waipaishuiheneipaishuixitongsuiyizizhibie

，danzaishijidegongchengshejizhongshiyoulianggebutongdezhuanyeshejirenyuanlaichengdanshejide

，waipaishuixitongyoujianzhuzhuanyesheji，neipaishuixitongzeyougeipaishuizhuanyesheji
，zhejiuweinei、外wai排pai水shui係xi統tong的de合he理li統tong一yi增zeng加jia了le難nan度du。有you時shi建jian築zhu專zhuan業ye的de設she計ji人ren員yuan一yi看kan需xu內nei排pai水shui係xi統tong
，就jiu把ba自zi己ji應ying該gai設she計ji的de外wai排pai水shui部bu分fen全quan部bu推tui給gei給gei排pai水shui設she計ji人ren，而er如ru果guo給gei排pai水shui專zhuan業ye的de設she計ji人ren又you不bu能neng說shuo服fu與yu自zi己ji配pei合he的de建jian築zhu專zhuan業ye設she計ji人ren，把ba本ben該gai外wai排pai水shui係xi統tong的de內nei容rong納na入ru內nei排pai水shui係xi統tong中zhong
，必bi然ran產chan生sheng一yi個ge不bu合he理li的de屋wu麵mian排pai水shui設she計ji方fang案an。我wo們men應ying該gai說shuo服fu建jian築zhu專zhuan業ye設she計ji人ren員yuan采cai用yong外wai排pai水shui係xi統tong解jie決jue所suo有you可ke以yi用yong外wai排pai水shui係xi統tong排pai除chu的de屋wu麵mian雨yu水shui。而er內nei排pai水shui係xi統tong僅jin解jie決jue那na部bu分fen用yong外wai排pai水shui係xi統tong無wu法fa解jie決jue的de屋wu麵mian雨yu水shui排pai水shui。因yin此ci
，要yao真zhen正zheng確que定ding好hao設she計ji方fang案an
，不bu僅jin僅jin純chun屬shu一yi個ge技ji術shu問wen題ti，還hai要yao學xue會hui與yu相xiang關guan專zhuan業ye設she計ji人ren員yuan溝gou通tong合he作zuo。