Roof cleaning with a moss, mould and lichen treatment is a safe and practical long-term solution for the roofs of New Zealand homes. The treatment bonds to the roof surface / coating, inhibiting further growth, and works to the root of lichen and mould, causing it to degenerate and slowly wash away with the weather over the course of 6 to 18 months. Your roof will stay clean for up to 3 years following treatment depending on the surface and surrounding environment and sun exposure.

- The most cost-effective roof cleaning option
- Keeps your roof clean for up to 3 years
- Safer than cleaning your roof by water blasting
- Cleans moss, mould and lichen on your roof to the root
- Requires far less access to the roof and walking over the roof than water blasting
- Roof clean treatments work over 6 to 18 months and clean moss, mould and lichen to the root

Roof cleaning treatments are applied with minimal spraying pressure and with hoses that are lightweight and fit the purpose so as not to cause friction and damage that commonly occurs when using a heavy rubber water-blasting hose.We apply roof cleaning treatments under dry conditions to ensure that they bond well to the moss, mould and lichen and to the roof surface or coating, therefore achieving a great result every time. We consider the wind, ensuring the treatment is not blown onto surrounding surfaces and plant life.

Soft washing is an effective solution for cleaning softer green mould off a roof but generally it will not clean denser types of mould, such as black and red moulds and lichen. These mould types need a high-pressure clean to blast them away.

- Fast cleaning results
- Can be carried out in any weather
- Gentler than water blasting your roof

Inhibiting growth is the best defence against moss, mould and lichen on a roof. This is easily done by applying our surface bonding treatment, which acts as an antimicrobial barrier that lasts from 1 to 3 years. Small booster roof cleaning treatments should then be applied every 1 to 2 years to help keep costs down and extend the life of the roof surface.

- Bonds to surfaces and inhibits the growth of moss or mould
- Long lasting
- Extends the life of your roof

A pre-paint treatment will generally be applied to a roof after a pressure wash to clean off remaining organic matter that may adversely affect the new roof paint or coating once applied. The treatment should be left overnight to have the best effect and then washed / hosed off with clean water before any paint is applied.

- Cleans away all organic matter before the roof paint or coating is applied
- Quick and easy to apply
- Allows the roof paint / coating to adhere to the roof without organic growth compromising the overall quality

When you need your roof cleaned in a short timeframe, pressure washing is one of the only solutions for most types of roofs and roof coatings. Although it is a fast solution, it comes with an array of potential issues, including the ingress of water into the roof cavity or building itself, the stripping of coatings from the roof, and damage to roof tiles or iron from walking across the roof while cleaning.

- Fast result
- Can be carried out in any weather
- Provides a clean surface before paint or coatings are applied