How To Remove Mould From Roof Tiles

Give the anti moss spray time to do its job and then use the high pressure cleaner to wash the tiles down.

How to remove mould from roof tiles.

Start from the top shingle and rinse downward to prevent water seepage. While it will not produce the same results as pressure cleaning it offers a quick and convenient option for cleaning the mould off your roof. Allow the solution to soak into the shingles for at least 15 minutes. Start on lowest row of shingles and work your way backwards to the upper part of the roof.

This will remove all the moss and lichen as well as any built up dirt. Choose a day when there is no rain forecast. Allow the roof to dry thoroughly. Lichen on terracotta roof tiles is particularly unappealing to the eye and is best handled before it has a chance to cake in and ruin the tiles.

Continue spraying until you see runoff then let the chemicals sit for 15 20 minutes to soak in and begin attacking the mold. Spray the entire roof thoroughly. If they are severely molded you may want to give it a little longer. Next rinse the shingles thoroughly with a garden hose at low pressure.

Cleaning due to evidence of permanent asphalt shingle damage caused by high pressure powerwashing. You must let the roof dry before a second application of mix. When mould is growing on top of your roof it is often indicative of problems that started within the home. More than likely it is spreading from your attic into your roof.

As you did in the previous step walk backwards when you are spraying away from the wet tiles and onto the dry ones. The product needs to be diluted 1 part with 5 parts water in a garden sprayer. If it is slimy or any sort of residue comes off on your hand repeat the above steps.