在金屬屋麵防水dechuantongshigongfangfazhong，gangjiegouwujiatixidechengzhongwanquanyouhengliangdieheercheng。zaizhezhongdiehejiegouzhong，hengliangyujuyouxuanbizhichengjiegouzuoyongdedougongxiangjiehe
，xingchenglezhongguocaigangjianzhuyishuzuifuchuangzaoxinghedaibiaoxingdedougongjiegoutixi。zaichufangliezhuyuwumianjiaojiedezhutoubuwei，womenhaiyuanledougongyuanshiyixiangzhongzuijianpugaikuodediejiaxuanbideshoulixingshi
，tongguoduidougongjiediandelixuefenxihejisuanshiyan，caiyonggangjiegoudexiangxingliang，zaigangguhunningtuzhuhegangwangjiawudingzhijianjiangouqicengdiexuanbidegangjiegouchuanligoujian，jiangmujiegoudeshouligoujianxingshiyanbianweifuhexiandaijiegoutixideshouligoujian，zhushendezhichenglitongguocengdiedegangliangdechuandijunyunkuosanzhiwudingwangjiatixi。zhutoudingbuloukongxingchengguangjing，zhuixingguangdingxiexiadetianguangtouguozhutoudecengdiegegoudexifeng，goulechudougongqingxidejiegoucengci。yegeizhuangzhongdeyanlangkongjiandailaileshenmiheyuyue。cengdiechuanzideyanxiaxijiechuli，zaixingshiluojishangyucengdiededougongyimaixiangcheng
，gouchengyigewanzhengdejinshu屋麵防水係統的形式意向。 

　　經曆了形式和細部尺寸及彩鋼屋麵防水材料構造的不斷深化，最終確定的有三層疊次的鬥拱形式結合了柱身的結構尺寸和整個立麵的尺度。鬥拱最初的廠房防水cailiaogouzaokaolvzaijiegoutiwaiyongjinshubancaibaofu
，zaidougongjiegoushejideshenhuazhong，jiegoulunkuochicunyujianzhujibenyizhi，zuizhongdougongdebiaomianchulicaiyongzhijiezaijiegoutiwaifutanpentu。suiranzengjialejiangoudezhenshixing，danduigangjiegoudejiagongjingduyijianzhuangjingdutichulehengaodeyaoqiu，zuihouchengxianchudejieguorengyoujiaoduoquexian，duochugangjiegouwumianxuyaozhaopingcainengdadaobiaoguanyaoqiu，liangduanzhutoudeanzhuangwuchadadaojin300mm，不得不圍繞柱頭頂部增加了一圈較寬的凹槽來弱化施工誤差
，雖然在形式上起到了強化鬥拱的作用，但實屬違反金屬屋麵防水設計初衷的無奈之舉