防水施工前，這些事項一定要準(zhun)備好

    大連防(fang)水(shui)(shui)施(shi)工(gong)前基(ji)(ji)(ji)面(mian)(mian)(mian)要處理干凈，檢查清(qing)理松動、脫(tuo)落的浮石(shi)，并且先行查看基(ji)(ji)(ji)層防(fang)水(shui)(shui)薄弱地(di)點(dian)，進行簡單處理，基(ji)(ji)(ji)面(mian)(mian)(mian)含水(shui)(shui)率不能過高，可(ke)使(shi)用卷材(cai)裁覆(fu)蓋(gai)基(ji)(ji)(ji)面(mian)(mian)(mian)，等待3——4個小時，在卷材(cai)和(he)基(ji)(ji)(ji)面(mian)(mian)(mian)上未(wei)見明顯(xian)水(shui)(shui)跡就可(ke)施(shi)工(gong)。開(kai)始做防(fang)水(shui)(shui)，一般做2-3遍防(fang)水(shui)(shui)。先刷墻面(mian)(mian)(mian)和(he)墻角(jiao)、下水(shui)(shui)管周圍，墻角(jiao)位置(zhi)干透后，再做地(di)面(mian)(mian)(mian)防(fang)水(shui)(shui)。

    刷(shua)的方(fang)式，一(yi)般都是垂直交叉的，舉(ju)例2遍(bian)防水(shui)(shui)，橫(heng)豎(shu)分別刷(shua)一(yi)遍(bian)，比(bi)如第一(yi)遍(bian)橫(heng)著刷(shua)，干透后(hou)（大約24小時）再刷(shua)第二遍(bian)。刷(shua)地面(mian)防水(shui)(shui)的時候，遇到墻(qiang)角(jiao)處(chu)，最好上(shang)翻到墻(qiang)面(mian)，不(bu)要在(zai)墻(qiang)角(jiao)處(chu)斷開，容(rong)易有遺(yi)漏的縫隙。墻(qiang)面(mian)防水(shui)(shui)不(bu)用刷(shua)的很厚(hou)(hou)，會(hui)影響貼磚(zhuan)效(xiao)果(guo)，造成瓷(ci)磚(zhuan)空鼓，但是地面(mian)刷(shua)厚(hou)(hou)點沒關系，最好在(zai)墻(qiang)面(mian)最后(hou)一(yi)遍(bian)防水(shui)(shui)半(ban)固(gu)化(hua)時，撒(sa)上(shang)粗砂，也就是拉(la)毛，這樣瓷(ci)磚(zhuan)以后(hou)不(bu)會(hui)空鼓。

    卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)的(de)鋪貼采用(yong)滾鋪法這是一種不展(zhan)(zhan)開(kai)卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)而邊加熱烘考邊滾動卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)鋪貼的(de)方法。起(qi)始端卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)的(de)鋪貼：將(jiang)卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)置(zhi)于起(qi)始位置(zhi)，對好長、短方向搭接縫，滋展(zhan)(zhan)卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)1000mm左右，掀(xian)開(kai)已展(zhan)(zhan)開(kai)的(de)部分(fen)，開(kai)啟(qi)噴(pen)槍點火，噴(pen)槍頭與卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)保持(chi)50-100mm距離，與基(ji)層呈(cheng)30-45°角，將(jiang)火焰對準(zhun)卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)與基(ji)層交接處(chu)，同時，加熱卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)底面熱熔膠(jiao)面和基(ji)層，至熱熔膠(jiao)層出現黑色光澤(ze)，發亮至稍有(you)微泡出現，慢慢放下卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)平鋪于基(ji)層，然后用(yong)排汽錕壓(ya)實使卷(juan)(juan)(juan)(juan)(juan)材(cai)(cai)(cai)(cai)(cai)(cai)與基(ji)層粘結牢固。

　　  搭接縫(feng)施工(gong)：熱熔卷材表面(mian)一(yi)般有一(yi)層防粘(zhan)隔(ge)離(li)(li)紙(zhi)，因此(ci)在熱熔粘(zhan)結接縫(feng)之前，應先將下層卷材表面(mian)的隔(ge)離(li)(li)紙(zhi)燒(shao)掉，以利搭接牢固嚴密，長邊搭接寬度(du)為80mm，短邊搭接寬度(du)為120mm㎜.

　　操作時(shi)，由持槍(qiang)人(ren)手持燙板(ban)(ban)（隔火(huo)板(ban)(ban)）柄，將(jiang)燙板(ban)(ban)沿搭接粉(fen)線后退，噴槍(qiang)火(huo)焰隨(sui)燙板(ban)(ban)移(yi)(yi)動，噴槍(qiang)應離開卷材50-100mm，貼靠燙板(ban)(ban)。移(yi)(yi)動速度要控制合適，以剛(gang)好熔去隔離紙為宜。燙板(ban)(ban)和噴槍(qiang)要密(mi)切(qie)配合，以免(mian)燒損卷材。排氣(qi)和輥壓方法與(yu)前(qian)述(shu)相同。