Roof Cleaning Manchester

Roof cleaning doesn’t need to involve power jet washing but will need soft wash an chemicals.

So Why Use Chemicals?

If you apply a fungicide/moss killer after the moss has been scraped off, it will soak into the tile and more importantly into the overlaps of the tiles and kill off any tiny moss spores. It will also kill off lichen and other organic growth on the tiles. This roof cleaning process can take some time after the excess moss is initially removed but there is no damage to the surface of the tile.

The application of roof cleaning chemicals will also prevent the moss from growing back for several years.

As a bonus, this chemical will also kill lichen, so those black marks on the tiles will fade away a few weeks after the treatment.

No Pressure Washing. No Flood Risk. No Expensive (and Useless) Roof Coatings

Did we mention that manually removing the moss/applying a fungicide is often the cheapest cleaning method?

Expect to pay around £500 for a semi detached house in Manchester. Compare that to £2000 for a roof cleaning and coating.

How Long Does the Moss Killer Last?

Assuming that the roof isn’t under tree cover, the moss shouldn’t grow back for about 3 years, after 4 years there will be light growth.

For this reason, the homeowner should contact a company to re-apply the chemical every 3 years, preventing any moss growth and keeping the roof looking clean.

This type of work is often carried out by roof cleaning contractor, although few roof cleaning/coating companies recommend this approach as it doesn’t involve pressure washers and expensive roof coatings/sealants.

It is possible to complete a roof cleaning project without pressure washing, but the chemicals do take a little time to work. Remember: the “dirt” you see on a roof is usually moss and lichen which can be treated and prevented with chemicals.

Which Chemicals are Best?

In most cases moss will not damage the roof tiles but can block gutters and drainage points. On certain roofs, such as those with a very shallow pitch, moss can potentially reduce the flow of water off the roof.