hi my name is Richard I'm here today to demonstrate about mold and how to prevent it and treat it so this is typical example of black spot mold on the wall it's an outside wall and you can see the black spot mold here growing on the surface of the wall and also into the window reveal molds are generally speaking black but we can have some white colored moles as well but this black one Aspergillus is a particular common mole that we find him molt can be cleaned by using a mold cleaning kit before start sprayed on the wall we should consider personal protection wearing safety glasses and a dust mask which comes in most markets is really useful in case you suffer an allergic reaction to any of the chemicals being used this is the mold clear chemical it contains bleach and it's perfectly safe to use in the home but do use it in a well-ventilated area I'm now going to apply the mold clear onto the wall with a spray gun and then wipe the wall down with a sponge working into the wall and then we'll leave that now for about 30 minutes the next stage is to take a a cloth in hot soapy water just ringing that out now and we'll wipe the walls down to neutralize the chemical treatment and finally using the cloth working well into the wall surface wiping over the surface where we treat it with the more clear chemical or neutralize that and make it completely harmless if you find after the treatment you have some black shadows on the wall from the mold then we have a an additive Montclair additive which goes into paint and this helps reduce the re-emergence of mold buck on the wall in the future the biggest cause of mold is condensation condensation can be greatly reduced by increase in ventilation within the property such things as opening trickle vents making sure the fans are operating correctly opening the curtains during the day so we get good air circulation around the trigger vents and windows and then keeping furniture such as beds and wardrobes away from the external walls to improve air circulation will offer a great improvement to the condition of the property