屋(Wu)顶(Ding)防(Fang)水(Shui)

①(?)　(?)做(Zuo)好(Hao)各(Ge)项(Xiang)前(Qian)期(Qi)准(Zhun)备(Bei)工(Gong)作(Zuo)

       屋(Wu)顶(Ding)防(Fang)水(Shui)施(Shi)工(Gong)前(Qian),应(Ying)组(Zu)认(Ren)真(Zhen)查(Cha)看(Kan)屋(Wu)面(Mian)工(Gong)程(Cheng)图(Tu)纸(Zhi),掌(Zhang)握(Wo)施(Shi)工(Gong)图(Tu)中(Zhong)的(De)细(Xi)部(Bu)构(Gou)造(Zao)及(Ji)有(You)关(Guan)技(Ji)术(Shu)要(Yao)求(Qiu)并(Bing)根(Gen)据(Ju)工(Gong)程(Cheng)的(De)实(Shi)际(Ji)情(Qing)况(Kuang)制(Zhi)定(Ding)施(Shi)工(Gong)方(Fang)案(An)和(He)技(Ji)术(Shu)措(Cuo)施(Shi),避(Bi)免(Mian)施(Shi)工(Gong)后(Hou)留(Liu)下(Xia)缺(Que)陷(Xian),影(Ying)响(Xiang)工(Gong)程(Cheng)质(Zhi)量(Liang),造(Zao)成(Cheng)返(Fan)工(Gong)。(?)

②(?)　(?)确(Que)保(Bao)防(Fang)水(Shui)材(Cai)料(Liao)的(De)质(Zhi)量(Liang)

       屋(Wu)顶(Ding)防(Fang)水(Shui)工(Gong)程(Cheng)所(Suo)采(Cai)用(Yong)的(De)防(Fang)水(Shui)材(Cai)料(Liao)应(Ying)有(You)材(Cai)料(Liao)质(Zhi)量(Liang)证(Zheng)明(Ming)文(Wen)件(Jian),并(Bing)经(Jing)指(Zhi)定(Ding)质(Zhi)量(Liang)检(Jian)测(Ce)部(Bu)门(Men)认(Ren)证(Zheng),确(Que)保(Bao)其(Qi)质(Zhi)量(Liang)符(Fu)合(He)《(?)屋(Wu)面(Mian)工(Gong)程(Cheng)技(Ji)术(Shu)规(Gui)范(Fan)》(?)(GB50207—94)或(Huo)国(Guo)家(Jia)有(You)关(Guan)标(Biao)准(Zhun)的(De)要(Yao)求(Qiu)。(?)

③(?)　(?)注(Zhu)意(Yi)屋(Wu)面(Mian)排(Pai)水(Shui)坡(Po)度(Du)

       平(Ping)屋(Wu)面(Mian)的(De)排(Pai)水(Shui)坡(Po)度(Du)为(Wei)2%～(?)3%,当(Dang)坡(Po)度(Du)小(Xiao)于(Yu)等(Deng)于(Yu)2%时(Shi),宜(Yi)选(Xuan)用(Yong)材(Cai)料(Liao)找(Zhao)坡(Po);当(Dang)坡(Po)度(Du)大(Da)于(Yu)3%时(Shi),宜(Yi)选(Xuan)用(Yong)结(Jie)构(Gou)找(Zhao)坡(Po)。(?)天(Tian)沟(Gou)、(?)檐(Yan)沟(Gou)的(De)纵(Zong)向(Xiang)坡(Po)度(Du)不(Bu)应(Ying)小(Xiao)于(Yu)1%,沟(Gou)底(Di)落(Luo)差(Cha)不(Bu)得(De)超(Chao)过(Guo)200mm。(?)水(Shui)落(Luo)口(Kou)周(Zhou)围(Wei)直(Zhi)径(Jing)500mm范(Fan)围(Wei)内(Nei)坡(Po)度(Du)不(Bu)应(Ying)小(Xiao)于(Yu)5%。(?)

④(?)　(?)使(Shi)用(Yong)卷(Juan)材(Cai)防(Fang)水(Shui)材(Cai)料(Liao)

       通(Tong)常(Chang)家(Jia)庭(Ting)防(Fang)水(Shui)工(Gong)程(Cheng)都(Du)是(Shi)使(Shi)用(Yong)卷(Juan)材(Cai)防(Fang)水(Shui)材(Cai)料(Liao),而(?)这(Zhe)种(Zhong)防(Fang)水(Shui)材(Cai)料(Liao)防(Fang)水(Shui)层(Ceng)施(Shi)工(Gong)应(Ying)在(Zai)砌(Qi)筑(Zhu)、(?)安(An)装(Zhuang)设(She)备(Bei)、(?)管(Guan)道(Dao)等(Deng)完(Wan)工(Gong)后(Hou)进(Jin)行(Xing),铺(Pu)贴(Tie)高(Gao)低(Di)跨(Kua)的(De)房(Fang)屋(Wu)时(Shi),应(Ying)按(An)先(Xian)高(Gao)后(Hou)低(Di),先(Xian)远(Yuan)后(Hou)近(Jin)的(De)顺(Shun)序(Xu)进(Jin)行(Xing)。(?)

⑤(?)　(?)注(Zhu)意(Yi)平(Ping)层(Ceng)的(De)接(Jie)缝(Feng)

       接(Jie)缝(Feng)是(Shi)防(Fang)水(Shui)工(Gong)程(Cheng)的(De)关(Guan)键(Jian),如(Ru)果(Guo)做(Zuo)不(Bu)好(Hao),常(Chang)常(Chang)会(Hui)成(Cheng)为(Wei)漏(Lou)水(Shui)的(De)症(Zheng)结(Jie)所(Suo)在(Zai)。(?)找(Zhao)平(Ping)层(Ceng)宜(Yi)设(She)分(Fen)格(Ge)缝(Feng),并(Bing)嵌(Qian)填(Tian)密(Mi)封(Feng)材(Cai)料(Liao)。(?)分(Fen)格(Ge)缝(Feng)应(Ying)留(Liu)设(She)在(Zai)板(Ban)端(Duan)缝(Feng)处(Chu),其(Qi)纵(Zong)横(Heng)缝(Feng)的(De)上(Shang)限(Xian)间(Jian)距(Ju),水(Shui)泥(Ni)砂(Sha)浆(Jiang)或(Huo)细(Xi)石(Shi)砼(Tong)找(Zhao)平(Ping)层(Ceng)不(Bu)宜(Yi)大(Da)于(Yu)6m,沥(Li)青(Qing)砂(Sha)浆(Jiang)不(Bu)宜(Yi)大(Da)于(Yu)4m。(?)