What you need to know?
RoofGuard™ Protect Your Home
Once organic damage has compromised your roof's surface coating, it is vulnerable to further deterioration. Check out our short video below that explains how moss and lichen spread and what it can do to your roof and your property's value.
Left unattended, moss, mould and lichen can severely damage your roof. Unchecked, these growths can;
- Block the water channels of the tiles, which could cause leaks
- Damage to the protective surface coating on the tile
- Cause deterioration to the ridging and mortar
- Decrease the longevity of the roof
- Void the Manufacturer's Warranty
- Cause permanent etching to the coating and substrate
RoofGuard™ Moss & Grime Removal
RoofGuard™ Moss and Grime Removal is the first step in our maintenance program. It will remove moss and lichen from your roof, reduce water retention, and unblock water channels.
RoofGuard™ Moss Proofing
After your roof has been weathered clean, which takes around 12 months, we will undertake a RoofGuard™ Moss Proofing treatment. We recommend you continue to apply it every two to three years. The RoofGuard™ Moss Proofing program stops regrowth and maintains your roof's appearance and structural integrity.
Our RoofGuard™ Guarantee
We've been treating roofs in New Zealand for over 65 years, and our RoofGuard™ solution and a little time are all your roof needs to keep clean and clear. We offer a one-year guarantee that if any moss & lichen re-grows on your roof, we'll return and treat it for free.
Trust Account
Ellice Tanner Hart Lawyers holds all deposits made with Edwards & Hardy in trust until the work begins.
65+ Years
Edwards & Hardy has been operating since 1959, having over 65 years of roofing experience.
Training Co of 2023
Edwards & Hardy were honoured to be awarded the RANZ Training Company of the Year 2023
BRANZ
Edwards & Hardy is proud to have developed the BRANZ-approved DuraBond® product to meet New Zealand's challenging environmental conditions.
Our Process
Roof Treatment Cleaning Process
1. Quotation and Initial Inspection
Inspecting your roof leads to a quote based on the extent of work needed.
2. Contract Acceptance
You review and sign a contract and schedule the project.
3. Completion and Final Inspection
Following the RoofGuard™ Treatment, you will receive a Visual Appraisal Report.
Trusted for over 65 Years
We take our property maintenance responsibilities seriously and proudly support New Zealanders in replacing roofs.
Happy Customers
Customer satisfaction is our primary goal. See what our customers are saying about us.
Our Latest Projects
Check out our gallery to see some of our latest installations.
FAQ
If you don't see an answer to your question, you can email us using our contact form.
Roof Treatment cleaning is the process of spraying algae, mold, mildew, lichen, and moss on your roof to remove this organic material over time. If left unattended, these elements can cause deterioration of roofing materials, leading to leaks and the need for costly repairs. Regular cleaning extends the life of your roof and maintains your home's aesthetic appeal.
RoofGuard™ Moss & Grime Removal is a professional cleaning service designed to eradicate moss, lichen, and other organic growth from your roof. This process not only cleans your roof but also helps prevent potential damage caused by these organisms, such as increased water retention and blocked water channels.
The frequency at which you should have your roof cleaned can vary depending on several environmental and structural factors. Here are a few key considerations:
- Local Climate: In areas with high humidity, frequent rain, or proximity to the ocean, roofs may be more prone to algae, mould, and moss growth, necessitating more frequent cleaning. For such climates, cleaning every 1 to 2 years can be necessary.
- Vegetation: Roofs under or near trees, especially those that drop leaves or pine needles, may require cleaning more often to prevent organic debris from accumulating and retaining moisture on the roof surface.
- Existing Growth: If you have noticed moss, lichen, or algae on your roof, a regular cleaning schedule should be followed to prevent these growths from causing damage.
- Manufacturer's Recommendations: Always refer to the roofing material manufacturer's guidelines for maintenance to ensure compliance with warranty conditions.
As a general guideline, cleaning should be performed at least every 2 to 3 years. However, at Edwards & Hardy, we can assess your specific situation, including the factors mentioned above, and give a recommendation tailored to your roof's condition and environmental circumstances. This ensures that you get the most appropriate cleaning frequency without over- or under-servicing your roof.
If not done correctly, roof cleaning can be dangerous and may damage your roof. Professional roof cleaning operators have the equipment, experience, and expertise to clean your roof safely and effectively. We recommend that homeowners avoid DIY roof cleaning and instead rely on qualified professionals.
Correctly performed roof cleaning will not affect the manufacturer's warranty. Our technicians are trained to clean roofs according to industry best practices and the specifications of roofing material manufacturers to ensure that your warranty remains intact.
The duration of a roof cleaning process can vary significantly depending on several factors. These include the size and pitch of the roof, the extent of dirt, algae, or moss growth, the cleaning methods used, and the weather conditions at the time of cleaning. A roof on a typical single-family home may take a few hours to a full day to clean. Larger roofs or those on commercial properties can take a full day or several days to clean. The complexity of the roof design can also add to the cleaning time. Roofs that are hard to access or require special safety measures can take longer to clean. Safety is a priority so that extra precautions may add to the overall duration.
Moss and lichen pose several risks to roofing materials and can lead to long-term damage if not properly managed:
- Moisture Damage: Moss absorbs and retains moisture, leading to the deterioration of roofing materials. This moisture can freeze and expand in regions with freeze-thaw cycles, causing shingles or tiles to crack or break.
- Root Systems: Both moss and lichen can develop root-like structures that adhere strongly to shingles and other roofing materials. Over time, these can cause the edges of shingles to lift, compromising the roof's ability to shed water and leading to leaks.
- Decay and Corrosion: The persistent dampness caused by moss and lichen can promote wood rot on wooden roofing components and rust on metal fixtures like nails and flashing.
- Blocked Gutters and Downpipes: As moss and lichen grow, pieces can break off and fall into gutters, leading to blockages and water overflow that can cause additional damage to the roof and the structure's foundations.
- Aesthetic Damage: In addition to structural issues, moss and lichen can cause aesthetic damage, leaving unsightly green, black, or white patches that diminish the roof's appearance and potentially affect property value.
Our RoofGuard™ Moss and Grime Removal service is a critical component of our maintenance program designed to tackle and eradicate moss and lichen from your roof. This process clears these growths, reduces water retention, and ensures that water channels are unobstructed, preserving the functionality and longevity of your roofing system.
RoofGuard™ Moss Proofing is a preventative treatment applied after your roof has been thoroughly cleaned—a process that typically takes around 12 months. To sustain the roof's clean appearance and structural integrity, we advise reapplication of the RoofGuard™ Moss Proofing treatment every two to three years. This treatment is specially formulated to prevent the regrowth of moss and lichen.