All Surface Cleaning Company

Moss just becoming visible on roof

First off, I apologize for the slightly blurry photo.   It’s not your eyes or monitor – it is our photo.   I still chose to post it because it is a good example of a young moss infestation.   This roof is a prime example of a roof that only requires a treatment to solve it’s moss problem.

The vast majority of roof cleaning and treating jobs we handle in the Portland area are for infestations much heavier and mature than what is show in this photo.   The moss has grown into clumps and has spread across the majority of the roof’s surface.  These roofs require eradication of the majority of the moss, cleaning the fallen moss out of the gutters and surrounding areas, and then treating.   The treatments, of which there may be a couple of options, serve to kill the remainder of the smaller moss left intact and then as a preventative to slow the return of new moss.

We recommend that when you see the first shimmer of green on your roof (such as the one in the photo,) before you see any clumps of moss, that you address the problem.   A young infestation can often be addressed by simply treating the roof.   This is the most gentle and affordable method of roof cleaning.

However, beware.   Some inexperience or irreputable contractors  will try to sell you on a treatment only option even when the moss is of a larger size.   In such instances, a “treatment only” process is insufficient.   If the moss is too large, the treatment usually will not penetrate the moss completely and the kill will be incomplete.   Additionally, the moss, even if dead, is too large and established to eventually crumble and roll off.   Thus, the importance of sticking with the above mentioned methods of removing the larger moss prior to the treatment to make sure that the job is done in a comprehensive and adequate method.

Also, bear in mind, that ANYONE who puts ANYTHING on your roof with the intent to kill moss, must be licensed with the Oregon Department of Agriculture as a Commercial Pesticide Operator.   You may check our license (AG-L0178910CPO ) right here:  http://oda.state.or.us/dbs/licenses/view.lasso?&division=pest&key=AG-L0178910CPO.

If you are a Portland area homeowner and unsure about where your roof stands in terms of which cleaning process is appropriate, please feel welcome to give us All Surface Cleaning Company a call.    We will gladly evaluate it for you at no cost.

Tags: Commercial Pesticide Operator, moss, moss removal, oregon department of agriculture, pesticide division, portland oregon, retractable awning, roof maintainence, roof maintenance, roof moss, roofing