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Cedar Roof Cleaning

Cleaning Your Cedar Roof is Not Enough

2nd Preservation Image

If your cedar roof appears faded, stained, dirty or moss covered you may be interested in cedar roof cleaning. A properly cleaned cedar roof is both beautiful and durable, with a higher wind and impact resistance and better insulation value than other roofing materials. Cedar is also naturally rot-resistant and can last 50 years or more with recommended maintenance.

Twigs, pine needles, leaves and fungus or other growth on your cedar roof will trap and hold moisture but cleaning a cedar roof will remove this debris as well as moss, mold and mildew, allowing good air circulation. After a cedar roof cleaning, your cedar shakes or shingles will be able to dry correctly after a rainfall and breathe as intended.

In some cases older cedar roofs may even exhibit signs of decay on the butt-end of the cedar shake/shingle. Don’t assume that this means your cedar roof is beyond cleaning, though. In situations where this type of roof rot is present, the removal of the decay is an important step in stopping the loss and preventing further damage. A complete evaluation of the roof is recommended before any action is taken. The different sections of the roof may have aged at different rates based on their exposure to the elements.

ss221Don’t trust just “any” roof cleaning service to wash your cedar roof, though. In the wrong hands, a power washer can damage the shake/shingles. It is also important that the roof cleaner you use is experienced in the evaluation of cedar roofs. A roof with extensive shake/shingle exposure damage including severe cracking/splitting/decay may be best left alone. Using a cedar roof expert to evaluate and clean your cedar roof is the only way to assure it receives the proper wood restorer, the correct pressure and the right fan tip, to completely and safely wash your cedar roof.

The Cedar Roof Company will first examine your roofs current condition. Any repair work, if necessary, will be noted at this time. Our roofing professionals have the knowledge, experience and correct materials to make any needed repairs, as well. We recommend that you schedule your appointment and plan to be present if at all possible. We guarantee that you will learn more about your shake or shingle roof by viewing it with a professional then what you will read on any proposal. The estimates we offer are clear and informative, including a price for the recommended work and any options.

Our cedar roof cleaning process for older roofs begins with treatment by a weathered wood restorer followed by a thorough yet safe cleaning service to the roof’s cedar shakes and shingles. The gentle power washing removes dirt, mold, mildew and dead wood fibers bringing the roof back to a rich “new” appearance without causing damage to the wood. Cleaning is just the first step though.

Don’t Skip the Second Step – Preserve your Cedar Roof

While cleaning your cedar roof is an important aspect of proper maintenance, it is only half of the service we offer. In the second stage, experienced and skilled technicians operate a high-volume, low-pressure spray unit to evenly and precisely coat the entire cedar roof surface with Amteco’s TWP (Total Wood Preservative) 200, a one-coat penetrating treatment designed specifically for cedar shake and shingle roofs. The preservation coating comes in three natural cedar selections including a timeless Weathered Gray, a classic shade of Nantucket Gray and a Cedartone that enhances the look of new cedar.


This protective coating penetrates the cedar shakes and shingles deeply to provide outstanding weather protection, while still allowing the cedar to breath. The coating prevents both cedar shakes and shingles from checking, cupping, curling, splitting and decay while its water repellent blend is guaranteed never to crack or peel. The treatment is approved by the EPA and only needs to be reapplied every five to six years, making preservation a decision that will add value to your home while requiring limited future cedar roof maintenance. By choosing to preserve early in the life of their roof, our installation customers add five years to their No-Leak Warranty.

Please note: While the product is not technically a cedar sealant, many homeowners incorrectly refer to preservation as sealing a cedar roof. If you truly seal cedar, the wood cannot breathe properly or moderate moisture as it should, so never use a sealant for cedar roofs.

Since 1993, The Cedar Roof Company and our treatment process designed for cedar roofs have proven to save our customers in both avoidable repairs and premature roof replacement. For best aesthetics and performance, owners of new cedar roofs should allow them to weather a minimum of 12 to 18 month before treatment. Preservation holds benefits for those with new cedar roofs as well as those with older wood roofs. Homeowners who choose to preserve their roof keep their roof and the sooner preservation begins in the life of your wood roof the longer you can expect it to last.

Our goal is to educate homeowners about the proper care and maintenance a wood roof requires. Preserving your cedar roof will significantly impede the damage caused by sunlight and moisture. The Cedar Roof Company is the only company to trust with the cleaning and treatment of your roof, whether you’re thinking of preserving your wood roof for the first time or planning on Re-Coating your roof.

See How the Colors Compare

Colors depicted for comparison purposes only. Actual preservation color may vary based on the condition of wood roof. Please refer to the Gallery for more representations of colors.