外墻(qiang)保溫防火(huo)等級(ji)要求

《民用建筑(zhu)外保溫系(xi)統及外墻裝(zhuang)飾防火暫行規(gui)定》

1、高度(du)大于等于100m的建(jian)筑，其(qi)保(bao)溫材料的燃燒性能應(ying)為***;

2、高(gao)度大于(yu)(yu)等于(yu)(yu)60m小于(yu)(yu)100m的建筑(zhu)，其保溫(wen)材料(liao)的燃(ran)燒性能不應(ying)低于(yu)(yu)B2級(ji)。當采用B2級(ji)保溫(wen)材料(liao)時，外墻修補，每層(ceng)應(ying)設置水平(ping)防火(huo)隔離帶;

3、高度大(da)于等于24m小于60m的建筑，其保(bao)溫材(cai)(cai)料的燃燒(shao)性能不應(ying)低于B2級。當采用B2級保(bao)溫材(cai)(cai)料時，每兩層應(ying)設(she)置水(shui)平防火隔離(li)帶(dai);

4、高度小于24m的建筑(zhu)，其(qi)保溫材(cai)料的燃燒性能不應低(di)于B2級(ji)。其(qi)中，外(wai)墻修補哪家好，當采用B2級(ji)保溫材(cai)料時，每三(san)層(ceng)應設置水平防(fang)火(huo)隔離(li)帶。

外墻保溫優點

1）對飾(shi)面(mian)和保溫(wen)(wen)(wen)材(cai)料的(de)(de)(de)防水、耐候性等技術指標的(de)(de)(de)要求不甚高，紙面(mian)石膏(gao)板、石膏(gao)抹(mo)面(mian)砂漿等均可滿足使(shi)用要求，取材(cai)方便；2）內保溫(wen)(wen)(wen)材(cai)料被樓板所分隔，僅在一個(ge)(ge)層(ceng)高范圍內施工(gong)，不需搭設腳手(shou)架；3）在夏(xia)熱(re)冬冷和夏(xia)熱(re)冬暖(nuan)地區(qu)，內保溫(wen)(wen)(wen)可以滿足要求；4）對于既(ji)有建筑的(de)(de)(de)節能改造，特別是目前當房(fang)屋賣(mai)給個(ge)(ge)人后，整棟樓或整個(ge)(ge)小區(qu)統一改造有困難時(shi)，只(zhi)有采(cai)用內保溫(wen)(wen)(wen)的(de)(de)(de)可能性大一些。因此，近幾年(nian)，高空外墻(qiang)修補，外墻(qiang)內保溫(wen)(wen)(wen)也(ye)得到廣(guang)泛(fan)的(de)(de)(de)應用。

保溫裝飾板系統

保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)外(wai)保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)系(xi)統（簡稱保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)一體板(ban)(ban)(ban)(ban)(ban)系(xi)統）由粘接(jie)劑、保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)、密封材料(liao)和輔助(zhu)錨(mao)固(gu)(gu)件構成。施工時(shi)，先在基層(ceng)(ceng)墻體上(shang)做防水線找平層(ceng)(ceng)，采用以粘為主、粘錨(mao)結(jie)合的(de)方(fang)式將保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)固(gu)(gu)定在基層(ceng)(ceng)上(shang)。保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)由保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)(ceng)、無(wu)機(ji)樹(shu)脂(zhi)(zhi)板(ban)(ban)(ban)(ban)(ban)、飾(shi)(shi)(shi)(shi)面(mian)(mian)(mian)層(ceng)(ceng)和連(lian)接(jie)件復合而(er)成。保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)層(ceng)(ceng)材料(liao)可(ke)選用EPS板(ban)(ban)(ban)(ban)(ban)、XPS板(ban)(ban)(ban)(ban)(ban)、PUR板(ban)(ban)(ban)(ban)(ban)、酚醛板(ban)(ban)(ban)(ban)(ban)、巖棉板(ban)(ban)(ban)(ban)(ban)。飾(shi)(shi)(shi)(shi)面(mian)(mian)(mian)層(ceng)(ceng)采用涂(tu)料(liao)飾(shi)(shi)(shi)(shi)面(mian)(mian)(mian)，外(wai)墻修補，無(wu)機(ji)樹(shu)脂(zhi)(zhi)版為***不燃材料(liao)，厚度不宜超過(guo)10mm，重(zhong)量不宜超過(guo)20kg/平方(fang)。保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)與(yu)基層(ceng)(ceng)墻體的(de)有效粘接(jie)面(mian)(mian)(mian)積(ji)應大于裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)面(mian)(mian)(mian)積(ji)的(de)50%，拉伸(shen)粘結(jie)強度不得小于0.10MPa。固(gu)(gu)定保(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)裝飾(shi)(shi)(shi)(shi)板(ban)(ban)(ban)(ban)(ban)的(de)錨(mao)固(gu)(gu)件數量不得少(shao)于每平方(fang)米6個。