Tag Archives: roof cleaners

Adding a pigment to oil



Cedar_Roof_West_Seattle_ Before and AfterWe recently completed a cedar roof restoration in Shoreline, WA. The use of 2 different pigments gave the roof a natural wood look. One of the things I never liked about adding stains to wood is how unnatural the even color looks on a roof. We kept the oil that we always recommend but added just a little bit of tint . The overall appearance was night and day as can be seen from the photos below.


ChevronThe use of a pigment when oiling a cedar roof goes along way in both protecting the roof and making the appearance uniform. When cleaning sometimes up to 3000 square feet of roofing , you will definitely miss small spots or have off coloring due to either patches in the wood or just the color differences some pieces of shake have when you’re done cleaning. The pigment helps blend in any darker spots and when mixed with our preferred brand of shake oil , gives the roof a look I have never seen before on any stained cedar roof before.

One of my favorite things to see is the look on the customers face when we are done oiling and adding pigment. Most of the time its pure shock that we could get the roof looking this way again.I am always surprised myself in the big differences either a little less oil, or pigment can have on a roof.

There are many stains who try giving this appearance to a roof but they fall short in their levels of protection , like a cedar oil does. We discussed the benefits of oiling a cedar roof in this post.


Cedar_Roof_Seattle_Experience plays a key role in darkening and lightening certain areas of the roof when you are staining it. There are times Ill slightly mix up the ratio of oil-lacquer thinner and pigment to give the roof an off color. Other times depending on the coloring of the siding, Ill add a natural cedar and also a smaller amount of blonde stain to the mix to really mix it up. What’s left is a finished product like the one above , where 2 different colors created a unique and natural wood look.

Roof Cleaning FAQ

[frequently asked questions]


Why is there still moss on my roof?

Your roof was not power washed, depending on your roof slope we either (a) manually scrubbed large patches with a stiff bristle brush or (b) chemically sprayed your roof and allowed Mother Nature to take its course.

How long does it take for the moss to come off my roof?

Dependent on the weather and sunlight conditions 3 days to 3 weeks. Your roof was sprayed with a mixture similar to weed killer. We live in a very moist climate and at times sunlight is infrequent.[i] After spraying your moss it is left moist and wet on your roofing. Its roots are dead immediately. Sunlight dries your moss out and then rain washes it down your gutters. Hoping to be as cautious as possible to your roofing, our process isn’t immediate. [ii]

What was sprayed on my roof?

A mixture recommended by ARMA to be the safest possible way of cleaning asphalt shingles. This is the method your shingle manufacturer recommends for roof cleaning. You can see the PDF by clicking here. [iii] We added Borax-Lo [iv] that keeps moss from returning. Check out  https://www.maideasy.com.au/house-cleaning/7-green-cleaning-tips-to-organize-your-home/ for a thorough clean-up.

Is this bad for my plants?

Yes and No. We’ve taken every precaution to protect your plant life by not over spraying past your gutter line and washing down any plants that were touched with our chemical. Simply put we are at your residence to kill a plant and there is not a green way to do that. If we damage any plant life we will do our best to resolve the situation with you.

How long does the process last?

You are covered for one year from the day you hired us[v]. Many of our customers have reported no moss growth for 2-3 years and as many as 5! The information we have garnered has helped us create a chemical blend that works. There are over 10,000 roofs a year who fail due to moss in our area. Wet and damp moss locks and holds moisture on your roof. Large patches create a dam and the shingles underneath begin curling and swaying. We have done as much as possible to protect your roof from damage during cleaning and have made moss growth very inhospitable. Thank you for choosing us. We look forward to keeping you as a happy customer for years to come.



[i] http://en.wikipedia.org/wiki/Seattle
[ii] http://pwngservices.com/2012/08/10/soft-wash-roof-cleaning-seattle/
[iii] http://pwngservices.com/wp-content/uploads/2014/11/ARMA-BULLETIN.pdf
[iv] http://pwngservices.com/wp-content/uploads/2012/06/borax-10-mol.pdf
[v] http://pwngservices.com/wp-content/uploads/2012/06/ROOF-CLEANING-WARRANTY.pdf