Living in the Pacific Northwest means dealing with a unique climate that is conducive to various types of organic growth on your roof. Understanding these different types of growth and their effects is crucial for maintaining the integrity and longevity of your roofing. Let's explore the four main culprits you'll encounter: moss, bacteria, algae, and lichen.
Moss: The Most Common Intruder Moss is by far the most prevalent type of organic growth you'll find on PNW roofs. This spongy green plant can hold up to 30 times its weight in water, making it a significant threat to your roof’s health. Surprisingly, moss can start to appear on a new roof within just two years of installation! Once it takes root, it spreads rapidly, creating a thick mat that traps moisture against the roof surface. This moisture retention can lead to a variety of issues, including the lifting and shifting of shingles. As shingles are displaced, they become more susceptible to wind damage, potentially leading to leaks and water intrusions. The extra weight from the water-laden moss can also cause structural stress on your roof.
Gloeocapsa Magma: The Staining Bacteria Next up is Gloeocapsa Magma, a type of cyanobacteria. This microorganism is responsible for the dark brown or black stains you might notice running vertically down your roof. These stains aren't just unsightly—they indicate the presence of bacteria that feed on moisture and the calcium carbonate found in roof shingles. Gloeocapsa Magma has a dark, hard UV protective coating that allows it to thrive even in sunlit areas. As gravity and rainwater pull it downward, it continues to grow vertically, covering more of your roof over time. This bacterium not only mars the appearance of your home but also accelerates the deterioration of your roofing materials, significantly shortening your roof's lifespan.
Algae: The Green Menace Algae is another common issue, though it's distinct from bacteria. Unlike Gloeocapsa Magma, algae have chlorophyll and can produce their own food through photosynthesis. While this might seem less harmful, algae still pose serious problems for your roof. As algae grow, they retain moisture, similar to moss, but instead of feeding off the roof materials, they create a damp environment that promotes further deterioration. Moisture retention can damage shingles and the underlying structures, leading to costly repairs. Although some homeowners view algae as merely a cosmetic issue, ignoring it can result in significant long-term damage.
Lichen: The Persistent Problem Lichen is somewhat similar to moss but even more stubborn and difficult to remove. This symbiotic organism consists of fungi and algae or cyanobacteria living together. It forms crusty patches on your roof and can penetrate deep into the roofing material, making removal a challenging task. Lichen often appears grayish-green and can survive in harsh conditions, adding to the difficulty of eradication. Its presence not only affects the aesthetic appeal of your roof but also contributes to the gradual degradation of roofing materials, much like moss and algae.
Prevention and Maintenance: Key to Roof Longevity Maintaining the health of your roof involves regular inspections and timely interventions to prevent and remove these types of organic growth. Addressing these issues early can save you from extensive damage and expensive repairs. Additionally, many roofing warranties require proper maintenance to remain valid, making it even more critical to stay vigilant. In conclusion, the PNW climate poses unique challenges for homeowners, particularly when it comes to roof maintenance. By understanding the nature of moss, bacteria, algae, and lichen, you can take proactive steps to protect your roof and ensure it remains in good condition for years to come.
DIY vs Hire a Pro? If you’re considering taking care the organic growth on your own roof, here are some things to keep in mind:
- Working on your roof is inherently dangerous. Working at heights comes with the increased risk of falls and serious injury. Professional contractors are trained in proper safety and have the necessary equipment, such as harnesses and stable ladders, to work safely at heights. They can navigate the roof’s surface with confidence, significantly reducing the risk of accidents.
- Organic growth removal isn't just about scraping off the green growth. Improper techniques can damage shingles and other roofing materials. Using harsh tools or applying excessive force can lead to broken or dislodged shingles, exposing your roof to water damage and costly repairs. Professionals know the right methods to remove organics without harming your roof's structural integrity.
- Many DIY moss removal solutions involve chemicals that can be harmful if not handled correctly. These substances can be hazardous to your health, especially if you inhale fumes or come into direct contact with them. Professional contractors use specialized, environmentally-friendly treatments that effectively eliminate moss while minimizing health risks.
- Moss often has deep roots that are difficult to remove completely without the right tools and knowledge. Partial removal can result in rapid regrowth, meaning your efforts (and the time and money spent) could be wasted. Contractors have the expertise to ensure thorough removal and can apply preventive treatments to keep moss from returning.
- Most roofing warranties require that maintenance and repairs be performed by licensed professionals to remain valid. Taking a DIY approach might inadvertently void your warranty, leaving you without coverage for future issues. Hiring a professional ensures that any work done on your roof adheres to warranty requirements.
Does this seem like a little more than you initially thought? Need professional help with your roof maintenance? Contact us today for expert services designed to keep your roof safe and sound! Our dedicated team is quick, efficient, and have the skills and training to get the job done right!