What is moss?

Many people have or have seen green vegetation growing on their roofs or the roofs of someone they know. How do you know what it is, how to remove it, and even more importantly, how to keep it from coming back?

Dictionary.com defines moss as any tiny, leafy-stemmed, flowerless plant of the class Musci, reproducing by spores and growing in tufts, sods, or mats on moist ground, tree trunks, rocks, etc. If allowed to grow on your roof, moss can cause severe damage to your roof. It compromises the integrity of any kind of roof by harboring water and allowing it to penetrate the roof substrate. As it grows it can eventually grow around or through your shingles causing microscopic holes where it wants to spread. Allowing it to grow on your roof can cause it to quickly take over, potentially resulting in the need for major repair or even a new roof. Additionally moss can create a suitable habitat for insects and even animals.

What environment does moss thrive in?

You might see moss growing on your roof if you live in a particularly damp or shady location. The Puget Sound's convergence zone (including cities like lake Stevens, Marysville, Snohomish .) is ripe with areas that cause moss to thrive. Maintaining your roof and removing moss safely and regularly can go a long way in lengthening the life of your roof and protecting the investment that is your home.

Why the roof?

You may have moss, algae, lichen or even mold growing on your roof.

Roof Shakes and Shingles can hold onto moisture. in combination with the indirect sunlight and moisture that remains on the shingles after precipitation this creates an ideal environment for moss and algae to not just live but flourish

It is important to note that there are differences between the plant-life you may see growing on your roof:

Dictionary.com defines mold as a growth of minute fungi forming on vegetable or animal matter, commonly as a downy or furry coating, and associated with decay or dampness.

additionally the definition of algae by dictionary.com is as follows: unicellular or multi-cellular organisms formerly classified as plants, occurring in fresh or salt water or moist ground, that have chlorophyll and other pigments but lack true stems, roots, and leaves. Algae, which are now regarded as protoctists, include the seaweeds, diatoms, and spirogyra

Lichen is defined by Dictionary.com as : an organism that is formed by the symbiotic association of a fungus and an alga or cyano bacterium and occurs as crusty patches or bushy growths on tree trunks, bare ground, etc. Lichens are now classified as a phylum of fungi

What can be done to take care of moss?

All of these can damage your roof shingles by allowing water to infiltrate your home and potentially allow mold to enter your home. Moss, lichen, algae and mold can be removed by roof washing. Some of these may require different treatments to keep them from returning. Ask your technician for identification tips and treatment suggestions

There is a really important step that you can take to make your roof last longer and protect it - regular roof cleaning. If roof cleaning is done improperly or by untrained workers, it can actually damage your roof. It is important to understand the chemicals used in some types of cleaning solvents can negatively affect some kinds of roof, It is crucial to make sure that whomever is working on your roof understands how your roof has a clear understanding. Our technicians have a lot of experience and are familiar with the different types of roof types and how to make sure that your roof will stay in top condition. We are appreciative of our team and our clients have many good things to say about the work that we do. (Ask us for references!) With our top of the line equipment, specialty cleaners, and expert techniques you can be confident that with the Apex team on the job, that you won't have any damage, fading, or staining. Your roof will be sparkling clean and last a long time.