Note: This is cleaning/treatment/restoration only. We do not offer roof repair services.

Why do Cedar Shakes and Shingles Weather?

All cedar shakes and shingle roofs will experience weathering. Weathering is simply the breaking down of an element (in this case, a cedar shakes or shingle roof) due to exposure to the elements over time. There are three main factors that contribute to a cedar roof’s weathering:

  1. Solar Radiation
    Solar radiation damages the cedar shakes and shingles rapidly, and is the most easily seen. Sunlight will cause the color of the cedar shakes and shingles to change from its natural golden hue to a silvery gray. This color change is an indication that the lignin (the natural glue that holds the wood cells together) is breaking down. As the lignin breaks down, tiny cracks in the cedar shakes and shingles occur which allow excess moisture to creep in and create further damage.
  2. Moisture
    Moisture causes the cedar to swell, and then shrink as it dries. This is known as the wet-dry cycle. After repeated wet-dry cycles, the cracks in the cedar from the solar radiation grow larger and deeper. This means even more moisture will get deeper into the shakes and shingles, preventing the cedar from drying quickly. As a result, the shakes and shingles begin to warp.
  3. Wood-Destroying Fungi
    While cedar contains natural preservatives, these preservatives are depleted over time due to solar radiation and moisture. With the absence of the natural preservatives, wood-destroying fungi (such as white-rot fungi and brown-rot fungi) creep in and start to colonize and grow. In the right environment, these fungi grow rapidly and eat away at the wood. White-rot fungi cause the shakes and shingles to become soft and spongy, while brown-rot fungi cause the shakes and shingles to crack and crumble. Without cleaning the fungi from the cedar roof at the early stages, the shingles and shakes will need to be replaced, and the homeowner risks premature roof failure.

*This article contains information gathered from Journal of Light Construction 1992

Category

Categories

Recent Posts

Our Certifications

Reviews

Cedar Shake Roof Cleaning Minneapolis

What can I say? Bruce and Keith provided an exceptional service, and they are really nice guys too. Found out at last minute they were in Minneapolis, and they fit me in for a cedar shake roof cleaning the next evening after their regular job was done. Even cleaned up my gutters, small fence and small deck at no charge. Place looks outstanding! Highly recommended.

Mike Richards

Cedar Shake Roof Cleaning, St. Cloud, MN

I highly recommend this business. Due to the work performed we are going to get another 10-14 years out of our cedar shake roof. We were told by some roofing companies that the roof should be replaced in 2 years. I lucked out and found Sullivan Roof Cleaning while researching companies that perform this service, and was pleased to learn that the company does work outside of Iowa. If you need your cedar shakes cleaned, go with Sullivan Roof Cleaning.

Eric Oelrich, St Cloud, MN

Customer Review

Bruce did a great job cleaning the whole exterior of my house. The roof has new life! It looks practically brand new. All the mold and moss on the roof, on the gutters, under the eaves, completely gone. He exceeded all our expectations. When he tells you what he can do for your house, you can believe and trust him. Great guy, great service.

Stuart Malone

Customer Review

Mr. Sullivan cleaned our roof that had not been maintained in 28 years. The roof appeared almost black, but after the cleaning the shingles were a beautiful light brown color. It really brightened out home. Knowing that the deterioration was stopped with this cleaning was wonderful news. I love my shake shingles and am so thankful for Mr. Sullivan's service to keep them healthy and long lasting for years to come. I feel the cost is a wonderful deal for what you are doing to preserve a beautiful roof. Mr. Sullivan was right on time and came all the way to Kansas City within just a few days of my initial request for an appointment. We was very professional and left our property better than he found it. Thank you, Mr. Sullivan!!!

Tara Flynn

Customer Review Lee’s Summit, MO. Cedar Shakes Roof Cleaning

My experience with Sullivan Roof Cleaning was very positive. Arrived on time and performed work as advertised. Bruce and Neil are friendly and trustworthy. My roof looks like new. I’ll give him a call in about 7 years or so for another roof cleaning. Well done………….

 

Richard Ambrose, Lee’s Summit, Missouri

Cedar Shakes Roof Cleaning, Princeton, IL

Outstanding coordination. Valuable service professionally provided. I highly recommend Sullivan Roof Cleaning!

Chris Schaede, Princeton, IL

Cedar Roof Cleaning Omaha, NE

From the first inspection to the completed procedure Bruce was a delightful professional. His website is quite informative, his communications were quick and his end results were more than I had anticipated. Simply-it was a job well done !

DR. Don A. Igel, Regency, Omaha, NE

Meet Bruce

50 Years of Experience &
Over 1,500 Shake Roofs Cleaned

Bruce Sullivan has over 50 years of experience in maintaining, cleaning, and restoring cedar shake roofs. Making him one of the top authorities on cedar shake roofs in the US.

Watch the Cleaning Process in Action in this video

Testimonials

Cedar Shake Roof Cleaning Minneapolis

What can I say? Bruce and Keith provided an exceptional service, and they are really nice guys too. Found out at last minute they were in Minneapolis, and they fit me in for a cedar shake roof cleaning the next evening after their regular job was done. Even cleaned up my gutters, small fence and small deck at no charge. Place looks outstanding! Highly recommended.

Mike Richards

Cedar Shake Roof Cleaning, St. Cloud, MN

I highly recommend this business. Due to the work performed we are going to get another 10-14 years out of our cedar shake roof. We were told by some roofing companies that the roof should be replaced in 2 years. I lucked out and found Sullivan Roof Cleaning while researching companies that perform this service, and was pleased to learn that the company does work outside of Iowa. If you need your cedar shakes cleaned, go with Sullivan Roof Cleaning.

Eric Oelrich, St Cloud, MN

Cedar shake roof cleaning Kansas City, MO

Bruce did a great job cleaning the whole exterior of my house. The roof has new life! It looks practically brand new. All the mold and moss on the roof, on the gutters, under the eaves, completely gone. He exceeded all our expectations. When he tells you what he can do for your house, you can believe and trust him. Great guy, great service.

Stuart Malone

Cedar shake roof cleaning Kansas City, MO

Mr. Sullivan cleaned our roof that had not been maintained in 28 years. The roof appeared almost black, but after the cleaning the shingles were a beautiful light brown color. It really brightened out home. Knowing that the deterioration was stopped with this cleaning was wonderful news. I love my shake shingles and am so thankful for Mr. Sullivan's service to keep them healthy and long lasting for years to come. I feel the cost is a wonderful deal for what you are doing to preserve a beautiful roof. Mr. Sullivan was right on time and came all the way to Kansas City within just a few days of my initial request for an appointment. We was very professional and left our property better than he found it. Thank you, Mr. Sullivan!!!

Tara Flynn

Customer Review Lee’s Summit, MO. Cedar Shakes Roof Cleaning

My experience with Sullivan Roof Cleaning was very positive. Arrived on time and performed work as advertised. Bruce and Neil are friendly and trustworthy. My roof looks like new. I’ll give him a call in about 7 years or so for another roof cleaning. Well done………….

 

Richard Ambrose, Lee’s Summit, Missouri

Cedar Shakes Roof Cleaning, Princeton, IL

Outstanding coordination. Valuable service professionally provided. I highly recommend Sullivan Roof Cleaning!

Chris Schaede, Princeton, IL

Cedar Roof Cleaning Omaha, NE

From the first inspection to the completed procedure Bruce was a delightful professional. His website is quite informative, his communications were quick and his end results were more than I had anticipated. Simply-it was a job well done !

DR. Don A. Igel, Regency, Omaha, NE

Free No Obligation Estimation

We require several details in order to give you the most accurate quote possible.  This quote will be done using Satellites to check the condition of your roof.

All the information provided will be keep secure and not sold to third parties.

Recent Posts

Free No Obligation Estimate

We require several details in order to give you the most accurate quote possible.  This quote will be done using Satellites to check the condition of your roof.

All the information provided will be keep secure and not sold to third parties.