Maintaining the cleanliness and integrity of a commercial roof is crucial for protecting your property investment. In addition to regular commercial roof cleaning, many property owners opt for biocide treatments to eliminate and prevent the growth of moss, algae, lichen, and other organic contaminants. But how long does a biocide treatment last, and is it worth the investment?
In this blog, we’ll discuss the benefits of biocide treatment, how it works, and why it’s an effective solution for long-lasting roof protection.
What is Biocide Treatment?
A biocide treatment is a chemical solution applied to the roof after cleaning to kill organic growth like moss, algae, mould, and lichen. These organisms are common on commercial roofs due to their exposure to moisture, shade, and pollutants, which create an ideal environment for growth. Biocide treatments are especially beneficial because they not only remove visible contaminants but also inhibit regrowth, keeping the roof cleaner for an extended period.
Benefits of Biocide Treatment in Commercial Roof Cleaning
- Prevents Regrowth: Biocide penetrates deep into the surface, eliminating organic spores and preventing regrowth for months or even years.
- Improves Roof Longevity: By keeping harmful organisms at bay, biocide treatments reduce the risk of structural damage and extend the roof’s lifespan.
- Enhances Aesthetic Appeal: A clean, moss-free roof improves the overall appearance of the property, making it more appealing to tenants, clients, and passersby.
- Minimises Maintenance Needs: With biocide treatment, the frequency of roof cleaning and maintenance is reduced, saving time and costs over the long term.
How Long Does Biocide Treatment Last?
The longevity of a biocide treatment depends on factors such as the type of biocide used, the roof’s exposure to sunlight and moisture, and local climate conditions. Generally, a high-quality biocide treatment can provide effective protection for up to 12 to 24 months, with some advanced formulas lasting even longer.
Factors That Influence Biocide Treatment Duration
- Type of Biocide Product
Different biocides offer varying levels of effectiveness. Professional-grade biocides used by commercial roof cleaning specialists are formulated to penetrate deep into the roof surface, providing longer-lasting protection compared to standard treatments. Some biocides even offer multi-year protection against organic regrowth. - Roof Material and Surface Condition
Porous roof materials, such as concrete tiles or asphalt shingles, tend to absorb biocide more effectively, allowing the treatment to last longer. Conversely, smoother surfaces may not retain the treatment as well, potentially reducing its longevity. - Weather and Environmental Conditions
Roofs in damp or shaded environments may be more susceptible to moss and algae regrowth. In these cases, the biocide treatment may need to be reapplied sooner to maintain effective control. However, roofs exposed to direct sunlight may see extended protection, as sunlight naturally inhibits moss and algae growth. - Level of Organic Growth Before Treatment
If the roof was heavily affected by moss, algae, or lichen before treatment, the biocide will have more contaminants to combat. In such cases, it may take a few treatments to fully establish lasting control over organic growth.
When to Reapply Biocide Treatment
For optimal results, biocide treatment should generally be reapplied every 1 to 2 years. This schedule ensures consistent protection against regrowth and keeps the roof looking its best. Property owners in particularly humid or shaded environments may benefit from annual applications, while those in sunnier, drier areas might find that a biannual schedule is sufficient.
Why Biocide Treatment is Essential for Commercial Roof Cleaning
1. Protects Roof Integrity
Moss, algae, and lichen can cause significant damage if left untreated, particularly on commercial roofs with complex structures or drainage systems. As these organisms grow, they can retain moisture and cause underlying materials to weaken, increasing the likelihood of leaks and structural issues. Biocide treatment removes these growths at their source, protecting the roof and helping it remain in good condition.
2. Reduces Maintenance Costs
By inhibiting organic growth, biocide treatments reduce the frequency and intensity of required maintenance. This proactive approach saves property owners money on repairs, extends the life of the roof, and minimises the need for frequent cleaning.
3. Improves Building Aesthetics and Professionalism
A clean, well-maintained roof is an essential part of a commercial property’s curb appeal. Algae stains or moss growth can make a building look neglected and unprofessional. Biocide treatment keeps the roof in pristine condition, maintaining the property’s appearance and giving clients, tenants, or customers a positive impression.
4. Environmentally Responsible Solutions
Modern biocide treatments used by commercial roof cleaning specialists are designed to be environmentally friendly, breaking down over time without harming surrounding plants or wildlife. Many professional cleaning companies use eco-friendly formulas that are tough on contaminants but safe for the environment.
Why Choose Exterior Express for Biocide Treatment?
At Exterior Express, we specialise in providing thorough and effective biocide treatments as part of our commercial roof cleaning services. Here’s why we’re the go-to choice for property owners looking for lasting roof protection:
- Professional-Grade Biocides: We use high-quality biocides that offer long-term protection against moss, algae, and lichen regrowth, ensuring your roof stays clean and protected.
- Experienced Specialists: Our team has extensive experience in commercial roof cleaning and knows how to apply biocide treatments effectively for maximum durability.
- Health and Safety Compliance: We follow strict health and safety guidelines, ensuring that our treatments are applied safely, even on multi-story commercial buildings.
- Customised Maintenance Plans: We understand that each property is unique, so we offer tailored maintenance plans that fit your building’s specific needs and environmental conditions.
How to Determine If Your Roof Needs a Biocide Treatment
If you notice visible moss, algae, or discoloration on your roof, it’s likely time for a biocide treatment. Other signs include:
- Frequent pooling of water in certain roof areas.
- Shaded sections of the roof that appear green or discoloured.
- Algae stains that have persisted despite regular cleaning.
For those who want consistent protection, scheduling regular biocide treatments as part of a comprehensive commercial roof cleaning plan can help maintain a clean and durable roof year-round.
Is Biocide Treatment Worth the Investment?
Yes, biocide treatment is a valuable investment for any commercial property owner looking to maintain the integrity and appearance of their roof. With protection that can last up to two years, biocide treatments offer an effective and economical solution to keeping your roof free from moss, algae, and other organic growths. By choosing professional application from experts like Exterior Express, you ensure that your roof receives high-quality treatment that preserves its lifespan and reduces maintenance needs.
Looking for reliable biocide treatment as part of your commercial roof cleaning? Contact Exterior Express today for a consultation and learn how our expert team can protect and extend the life of your roof. Request a free quote and discover the benefits of long-lasting roof protection with our premium biocide treatments.
Frequently Asked Questions (FAQs)
1. How long does biocide treatment last on a commercial roof?
Biocide treatment can last between 12 to 24 months, depending on the type of biocide used, roof material, and environmental factors.
2. How often should biocide treatment be reapplied?
For consistent protection, it’s generally recommended to reapply biocide every 1 to 2 years. This frequency may vary based on climate and the amount of shade or moisture your roof is exposed to.
3. Can biocide treatment prevent all moss and algae growth?
While biocide treatment is highly effective in preventing most moss and algae growth, it may not prevent all regrowth indefinitely. However, regular treatments ensure that any regrowth remains minimal and manageable.
4. Is biocide treatment safe for the environment?
Yes, modern biocide treatments used by professional cleaning services are formulated to be environmentally friendly. They break down over time and are safe for surrounding plants and wildlife.
5. How do I know if my commercial roof needs a biocide treatment?
If you see moss, algae, or discoloration on your roof, or if you’ve had issues with organic growth in the past, a biocide treatment is recommended. Regular treatment as part of a maintenance plan is ideal for ongoing protection.
6. Can biocide treatment be applied in any weather?
Biocide treatment should ideally be applied during dry weather to ensure proper absorption and effectiveness. Rain or snow shortly after application can reduce its effectiveness.
