Moss, Mould & Lichen No More: Roof Treatment Services in Auckland, Christchurch & Tauranga
Your roof stands tall against the elements day in and day out—but over time, it becomes a breeding ground for moss, mould, and lichen. Left untreated, these growths can damage roofing materials, lead to leaks, and shorten your roof’s lifespan. That’s why proactive roof treatment is so essential—especially in cities like Auckland, Christchurch, and Tauranga, where weather conditions encourage organic growth. In this post, we explore the importance of roof moss, mould, and lichen treatments, and why Metro Water Blasting is your go-to solution.
Why Moss, Mould & Lichen Are a Problem
1. Trapped Moisture
Moss and lichen soak up water and trap moisture against your roof, causing rot and decay over time.
2. Shingle & Tile Damage
As moss expands, it can lift or crack shingles and tiles—especially during freeze-thaw cycles.
3. Blocked Drainage Systems
These growths often break off and clog gutters, downpipes, and drainage systems.
4. Ugly Stains
Black streaks and green patches hurt your home’s visual appeal and resale value.
Moss & Mould in Auckland, Christchurch & Tauranga
New Zealand’s temperate climate, especially in coastal and shaded areas, provides the perfect breeding ground for roof growths.
- Auckland: High humidity and frequent rain encourage moss and algae year-round.
- Christchurch: Cooler, damp winters promote slow but steady lichen growth.
- Tauranga: Salt-laden air and coastal conditions can speed up biological build-up.
That’s why it’s essential to have regular roof treatments from professionals who understand your local climate—like Metro Water Blasting.
Our Roof Treatment Process
At Metro Water Blasting, we use a proven multi-step method:
✅ Step 1: Inspection
We assess your roof type, condition, and the extent of moss or lichen growth.
✅ Step 2: Application of Treatment
We apply a specially formulated, biodegradable treatment that kills moss, lichen, and mould at the root.
✅ Step 3: Natural Breakdown
Unlike pressure washing, our treatment works over time. Rain and weather help wash away the dead growth, gently and effectively.
✅ Step 4: Optional Maintenance Plan
We offer follow-up treatments every 12–24 months to keep your roof protected.
Why Choose Metro Water Blasting?
✔ Local Knowledge
Our team operates in Auckland, Christchurch, and Tauranga, and we understand the specific climate issues of each region.
✔ Safe & Non-Damaging
Our no-pressure method protects your roof’s integrity—especially important for older or more fragile roofing systems.
✔ Fully Insured
We follow all safety regulations and carry full public liability insurance.
✔ Eco-Conscious
Our treatments are biodegradable and safe for plants, pets, and water systems.
✔ Results You Can See
Customers report roofs looking dramatically better in just a few weeks—without any harsh scrubbing.
Want proof? Check out our results and request a quote at Metro Water Blasting.
Roof Types We Treat
We safely treat all major roofing types across Auckland, Christchurch, and Tauranga:
- Tile roofs (concrete, clay)
- Metal roofs (Colorsteel, Zincalume)
- Decramastic and asphalt shingles
- Bitumen and membrane systems
No matter what your roof is made of, we know how to treat it safely and effectively.
When Should You Get a Treatment?
We recommend treating your roof every 12–24 months, depending on exposure to trees, humidity, and prior growth levels. If you’ve had issues with moss or mould in the past—or if you see early signs now—it’s time to act.
Get peace of mind with a preventative maintenance plan from Metro Water Blasting.
Book Your Moss, Mould & Lichen Treatment Today
Stop growth before it becomes damage. A professional treatment today can save you thousands in repairs tomorrow. Whether you’re in Auckland, Christchurch, or Tauranga, Metro Water Blasting is ready to help.
Click here to request a free quote or inspection and protect your roof the smart way!