The reason of mildew on the wall is nothing more than damp. One is the damp caused by season, which has little to do with putty powder. One is that the base of the wall is not well prepared and the base surface is not well treated, which may be due to putty powder.

一囊嘲、因?yàn)閴w保溫沒有做好而導(dǎo)致的墻體發(fā)霉：應(yīng)先檢查墻體是否做過保溫處理鹿脯。用檢查錘敲擊墻面践斟，如果聲音空洞，則說明墻體有保溫層抵师，如果聲音沉悶顶赎，則說明墻體沒有做保溫層。

1坤学、 Because the wall insulation is not good and cause wall mildew: should first check whether the wall has done insulation treatment. Knock the wall with the inspection hammer. If the sound is hollow, it means that the wall has insulation layer. If the sound is dull, it means that the wall has no insulation layer.

若存在保溫層則需檢查建筑外墻是否存在裂縫疯坤，如果沒有裂縫，說明保溫材料不行拥峦，要進(jìn)行更換贴膘，這是根治之法。還有墻體沒做防水導(dǎo)致墻體滲水引起墻壁發(fā)霉略号。

If there is a thermal insulation layer, it is necessary to check whether there are cracks on the external wall of the building. If there are no cracks, it means that the thermal insulation material is not good and it needs to be replaced. This is a radical cure. There are walls that are not waterproof, causing water seepage and moldy walls.

二刑峡、因?yàn)榧竟?jié)原因造成的發(fā)霉：更好不要馬上修補(bǔ)。因?yàn)閴w內(nèi)的水分正在逐漸揮發(fā)玄柠，屬于裝飾材料的正常物理變化突梦。如果未等水分完全揮發(fā)完就又刷上新的漆面诫舅，水分仍然會繼續(xù)揮發(fā)，并且還會從其他地方出來宫患，墻體就有可能再次發(fā)霉刊懈。

2、 Mildew due to seasonal reasons: it's best not to repair it immediately. Because the water in the wall is gradually volatilizing, it belongs to the normal physical change of decorative materials. If the water is not completely volatilized and then painted with new paint, the water will continue to volatilize, and will come out from other places, the wall may be moldy again.

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The above contents are sorted out and released by the manufacturers of Jinan putty powder. I hope it can help you. For more wonderful contents, please pay attention to: http://m.bjtsdc.com