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

Cedar Roof Wood Decaying Fungi

Sheryl Brown Rot Fungi 2
Dating back to the earliest days of colonization in North America, cedar shakes and shingles have offered strength, durability, insulation, and beauty to our homes. A wood roof imparts a look of quality that few other roof coverings can match.

Only a few years of exposure to the weather, however, can drastically change this “quality” roofing. Through the interaction of sunlight and rainfall, cedar shakes and shingles can lose virtually all their natural protectants in as short a time as five years. At this age, most cedar roofs begin to show signs of cupping, curling, splitting, and decay. Unlike most roofing materials, however, cedar shingles and shakes can be restored and maintained through proper care and treatment, often doubling or tripling the remaining service life.

Why Wood Roofs Weather

Western red cedar is an extremely durable material even under adverse conditions, but its useful life depends upon the environment. Cedar roofs left unprotected suffer photodegradation by ultraviolet light (sunlight), leaching, hydrolysis, shrinking and swelling by water, and discoloration and degradation by decay microorganisms.

Photo degradation by sunlight. Solar radiation is the most damaging component of the outdoor environment. Photo degradation due to sunlight occurs fairly rapidly on the exposed shingle surface. The initial color change from the golden, orange-brown color to gray is related to the decomposition of lignin in the surface wood cells. (Lignin is Mother Nature’s way of holding wood cells together.) The wood cells at the shingle surface lose their strength and eventually are washed away by rainwater. In addition, microscopic cracks and checks develop, allowing deeper water penetration.

Degradation by moisture. Accompanying this loss of wood fiber at the shingle surface are the shrinking and swelling stresses set up by fluctuations in moisture content. These stresses cause deeper checks and splits to develop. The result: shakes and shingles begin to cup, curt, split, and check at an accelerated rate.
Degradation by wood-destroying fungi. The natural decay resistance of western red cedar is due to its heart-wood extractives, including the thujaplicins and a variety of phenolic compounds. The thujaplicins contribute to the decay resistance of red cedar while the phenolic compounds and resins give cedar its water repellency and lubricity (slippery surface).
Since the natural preservatives in cedar are somewhat water soluble they can be depleted in service. In roof exposure, extractives may leach out in a relatively short time and allow colonization by wood-inhabiting fungi. Aided by favorable climatic conditions, these in turn allow the growth of wood destroying fungi, which ultimately cause the early failure of a roof. The wood becomes soft and spongy, stringy, pitted and cracked or crumbly. This usually occurs first at the butt region of the shingles where they overlap.

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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.