What we Wash
- Pool surrounds
- Roof treatments
- Moss & mould treatments
- Paths & driveways
- Pre-wash painting preparation
- Building signage
- Spider and bug treatments
- Houses
- Commercial buildings
- Gutter & spouting
- Decks & fences
- Retaining walls
- Car parks & tennis courts
- Commercial windows
When it comes to roof cleaning there are some important things you need to know about.
Roof Treatment – how it works, when to choose it, and important safety considerations
What's involved, how long it can take to see results and what needs to happen if you are on tank water.
This guide explains the pros and cons of roof treatments versus roof washing so you can decide what’s best for your home.
If your roof has a lot of thick black mould it can be a lengthy process to get it clean. Some roofs with extensive black mould may need a booster treatment.
**IMPORTANT**
If you are on tank water you will need to disconnect the tanks prior to us arriving. They will need to stay disconnected until there has been 25 ml of rain.
If you need help to disconnect the tanks please let us know. This ensures no treatment product enters your water supply.
When it comes to roof cleaning there are some important things you need to know about.
Below you'll find details about each approach, pricing examples and recommendations for different roof types.
Roof Treatment verses a roof wash
The best way to keep a roof clean is via a regular roof treatment. A roof treatment is cheaper than a roof wash, its quicker and less labour intensive.
It’s also a lot gentler on roofing materials and uses a lot less water. Roof treatments are an effective, eco-friendly option to maintain the life and appearance of your roof.
97% of our customers in both Northland and Auckland chose a treatment over a wash.
Roof Treatment
- Cheaper
- Keeps it clean for longer
- One person can do the job
- Does not use much water
- Quick to do - a couple of hours
- Product gently sprayed on the roof
Roof Wash
- More expensive
- Mould and lichen returns quicker
- Two guys (One harnessed on the roof & one as a spotter)
- Uses a lot more water
- Time consuming - between 8 and 12 hours
- High pressure water blasting
What a roof treatment involves
A roof treatment involves spraying a product onto the roof surface which kills lichen and moss. The rain and sun gradually break down and remove the dead lichen and moss. This process can take up to 12 months for moss and lichen and around 18 months for black mould. This slow-release process is designed to clean gently without damaging roofing materials.
Roof treatment process
Every roof is different in terms of how long it takes, and this is based on the roofing materials and the environmental factors that surround the roof.
Some roofs require a booster treatment about 4 months after the initial treatment. This is generally only roofs that have been affected by quite heavy moss, mould or lichen. If your roof falls into this category then the return price would be the same minus 20%. We'll advise you after the first visit if a booster treatment is likely to be needed.
Preventative maintenance
We recommend getting a regular roof treatment to keep it free from growing lichen, mould and moss and getting a residue build-up from environmental factors such as traffic pollution and the residue from trees growing nearby (particularly macrocarpa trees).
This lengthens the life of the roof products and is cheaper than getting a roof wash which is labour intensive. Some roofs need an annual treatment and some only need to be done bi-annually it just depends on the environmental factors.
A lot of the products available for this sort of work are diluted and so do not produce the result our product does. Our professional-grade treatment is designed to deliver longer-lasting results compared to most over the counter options.
When should you opt for a roof wash over roof treatment?
If you are getting your roof painted, then it will need to be washed.
If you’re wanting your roof cleaned instantly and are not wanting to wait 12 months (sometimes this can be more like 6 months) then getting a roof wash would be the better option for you
If you have quite a lot of black mould. A roof treatment is not always that effective on black mould.
We're happy to discuss the best option for your roof and your timeframe.
Are you on tank water?
A friendly reminder: if you are on tank water, please disconnect the tank before any roof washes or treatments. If you are unable to do this yourself, please let us know. We are happy to assist you and will simply need to verify a few details with you first.
