大連防(fang)水施(shi)工，如做涂(tu)(tu)料(liao)(liao)(liao)防(fang)水，以“一(yi)布(bu)兩涂(tu)(tu)”為(wei)例：清(qing)理(li)干凈基層(ceng)(ceng)后(hou)(hou)，滿(man)刷(shua)一(yi)遍(bian)(bian)涂(tu)(tu)料(liao)(liao)(liao)，干燥(zao)(zao)成膜(mo)后(hou)(hou)，鋪設一(yi)層(ceng)(ceng)玻(bo)(bo)纖布(bu)胎體增強材料(liao)(liao)(liao)，并(bing)在(zai)已展平(ping)(ping)的(de)(de)表(biao)面上滿(man)刷(shua)一(yi)層(ceng)(ceng)涂(tu)(tu)料(liao)(liao)(liao)固定，干燥(zao)(zao)后(hou)(hou)進(jin)行(xing)下(xia)一(yi)遍(bian)(bian)涂(tu)(tu)料(liao)(liao)(liao)施(shi)工。防(fang)水涂(tu)(tu)膜(mo)的(de)(de)總厚(hou)度應在(zai)3毫(hao)米(mi)以上。如做涂(tu)(tu)料(liao)(liao)(liao)防(fang)水，以“一(yi)布(bu)兩涂(tu)(tu)”為(wei)例：清(qing)理(li)干凈基層(ceng)(ceng)后(hou)(hou)，滿(man)刷(shua)一(yi)遍(bian)(bian)涂(tu)(tu)料(liao)(liao)(liao)，干燥(zao)(zao)成膜(mo)后(hou)(hou)，鋪設一(yi)層(ceng)(ceng)玻(bo)(bo)纖布(bu)胎體增強材料(liao)(liao)(liao)，并(bing)在(zai)已展平(ping)(ping)的(de)(de)表(biao)面上滿(man)刷(shua)一(yi)層(ceng)(ceng)涂(tu)(tu)料(liao)(liao)(liao)固定，干燥(zao)(zao)后(hou)(hou)進(jin)行(xing)下(xia)一(yi)遍(bian)(bian)涂(tu)(tu)料(liao)(liao)(liao)施(shi)工。

防水涂膜的(de)總(zong)厚度應在3毫米以上。屋面工(gong)(gong)程(cheng)施(shi)(shi)工(gong)(gong)前，施(shi)(shi)工(gong)(gong)單位應組織技(ji)(ji)術管理人員會審(shen)屋面工(gong)(gong)程(cheng)圖紙，掌(zhang)握(wo)施(shi)(shi)工(gong)(gong)圖中的(de)細部構造及(ji)有關技(ji)(ji)術要求(qiu)并(bing)根據(ju)工(gong)(gong)程(cheng)的(de)實際情況編(bian)制屋面工(gong)(gong)程(cheng)的(de)施(shi)(shi)工(gong)(gong)方案(an)或技(ji)(ji)術措施(shi)(shi)。這樣避免施(shi)(shi)工(gong)(gong)后留下缺(que)陷，造成返工(gong)(gong)，同時(shi)工(gong)(gong)程(cheng)依據(ju)施(shi)(shi)工(gong)(gong)組織有計(ji)劃地展開(kai)施(shi)(shi)工(gong)(gong)，防止工(gong)(gong)作(zuo)遺漏、錯亂、顛倒影(ying)響工(gong)(gong)程(cheng)質量。

屋(wu)面工(gong)(gong)(gong)程施(shi)(shi)工(gong)(gong)(gong)前(qian)，施(shi)(shi)工(gong)(gong)(gong)單位應組織技術管理人(ren)員會審(shen)屋(wu)面工(gong)(gong)(gong)程圖紙，掌握施(shi)(shi)工(gong)(gong)(gong)圖中(zhong)的細(xi)部(bu)構造及有關技術要求(qiu)并根(gen)據(ju)工(gong)(gong)(gong)程的實際情況編制屋(wu)面工(gong)(gong)(gong)程的施(shi)(shi)工(gong)(gong)(gong)方(fang)案或技術措施(shi)(shi)。這樣避免施(shi)(shi)工(gong)(gong)(gong)后留下缺陷，造成返工(gong)(gong)(gong)，同時工(gong)(gong)(gong)程依據(ju)施(shi)(shi)工(gong)(gong)(gong)組織有計劃地展開(kai)施(shi)(shi)工(gong)(gong)(gong)，防(fang)止工(gong)(gong)(gong)作(zuo)遺漏、錯亂、顛倒(dao)影響工(gong)(gong)(gong)程質量(liang)。找(zhao)平(ping)層(ceng)是鋪貼卷材(cai)防(fang)水層(ceng)的基層(ceng)，給(gei)防(fang)水卷材(cai)提供一個平(ping)整、密實、有強度(du)、能粘結的構造基礎。

因(yin)此，鋪貼卷材(cai)的找平(ping)(ping)層(ceng)(ceng)應堅實，不(bu)得有突出的尖角(jiao)和凹坑或表面(mian)起砂現象，當(dang)用2米長的直尺檢(jian)查時，直尺與(yu)找平(ping)(ping)層(ceng)(ceng)表面(mian)的空隙不(bu)應超過(guo)5mm，空隙只允許平(ping)(ping)緩變化，且每米長度(du)內不(bu)得超過(guo)一處。找平(ping)(ping)層(ceng)(ceng)相鄰表面(mian)構成(cheng)(cheng)的轉角(jiao)處，應做成(cheng)(cheng)圓弧或鈍角(jiao)。 當(dang)基層(ceng)(ceng)為整體(ti)混凝土(tu)時，采用水泥(ni)砂漿找平(ping)(ping)層(ceng)(ceng)，厚(hou)度(du)為20mm，水泥(ni)與(yu)砂漿比(bi)為1:2.5～1:3（體(ti)積比(bi)），水泥(ni)標號(hao)不(bu)低于(yu)(yu)42.5。找平(ping)(ping)層(ceng)(ceng)還(huan)要(yao)設分格縫(feng)，并嵌(qian)填密封材(cai)料(liao)，這(zhe)樣可避(bi)免或減少找平(ping)(ping)層(ceng)(ceng)開(kai)裂，以至于(yu)(yu)當(dang)結構變形或溫差變形時，防水層(ceng)(ceng)不(bu)會形成(cheng)(cheng)裂縫(feng)，導致(zhi)造(zao)成(cheng)(cheng)滲漏。

在(zai)對斷(duan)裂縫進(jin)行注漿止水(shui)、嵌填(tian)彈性密封材(cai)(cai)料(liao)后(hou)，可以在(zai)水(shui)泥(ni)砂(sha)漿保(bao)護層(ceng)上(shang)粘貼(tie)延伸率大、拉伸強度較(jiao)高的(de)合成高分子橡膠片(pian)材(cai)(cai)。具體作法為：將水(shui)泥(ni)砂(sha)漿保(bao)護層(ceng)清理干凈，要求基(ji)層(ceng)平整、干燥，在(zai)基(ji)層(ceng)上(shang)涂刷基(ji)層(ceng)處理劑，待其表(biao)干后(hou)，即在(zai)基(ji)層(ceng)和裁好的(de)片(pian)材(cai)(cai)上(shang)涂刷配套膠粘劑，晾至指觸不(bu)粘時，就可粘貼(tie)高分子片(pian)材(cai)(cai)。片(pian)材(cai)(cai)兩側(ce)邊(bian)緣墊上(shang)金(jin)屬壓條后(hou)以射(she)釘釘壓固定(ding)，然后(hou)在(zai)片(pian)材(cai)(cai)兩側(ce)邊(bian)緣用(yong)嵌縫膏密封以形成多道防水(shui)設防。