How long mildew spot of the old walls with stone paint renovation?

In recent years, many building facades have started using stone coating, color coating, water bag of sand stone paint and other exterior wall coating. So, in addition to the new project, with the mould of latex paint walls could also make stone paint? How to build? Because stone paint in the exterior wall construction application range is very wide, not only applies to new wall decoration, can also be applied to the original exterior wall emulsioni paint and ceramic tile wall wall reconstruction. Long mould wall emulsioni paint of renovation and construction conditions, mould processing and has a lot to do with the stone coating of different materials. Specific solutions are as follows. Exterior wall paint decoration stone construction conditions in more than 5 ℃ temperature, relative humidity below 85%, rainy days can't construction, the construction foundation surface without grease, dust, loose material, etc. Wall ph alcohol with a toothbrush was how to deal with the wall of the mould processing mold wall. When there is small mildew spot, exterior wall with tooth brush away the mould first, then dip in with soft cloth with alcohol to wipe gently, can dry wall, to prevent mold growth. Use bleach ( Powder) The metope of processing mould. The bleach ( Powder) And the proportion of water to 1:99 in a spray bottle, spray on the metope of mould. Metope of cloth to wipe, and then clean with clear water, immediately solve the problem of metope mildewy. If there is a small wall mildew spot, 80% alcohol was enough to wash the wall. Pay attention to the ventilation when cleanness, wear protective gloves, masks and glasses. If there is a large area of mildew metope, need to remove the metope of the mould, then blow be bored with child outside the wall, make metope smooth. Exterior wall mould processing, should press stone coating construction steps for the construction.