05:07AM | 06/23/10
Member Since: 06/22/10
2 lifetime posts
I didn't even know I had a problem until I stumbled accross this thread! Oh I knew we had black spots on our two decks and stairs but I would apply bleach and then pressure wash every year and get rid of them for awhile. At first it cleaned the deck for most of a year. But as time went on the black spots showed up sooner and sooner. Last year it was "clean" for only 6 weeks. After reading this thread, and much thinking about an overall plan, I came up with the plan to apply corta clean, pressure wash it off and then apply wet and forget. My thinking was corta clean would clean it off and wet and forget would keep it clean for as long as possible.

Here are the results so far. Application went as planned. The corta clean is absolutly temperture dependant. The warmer it is, the faster it shows visable difference. If your not worried about speed then apply at lower 60's. The main thing is it works! It cleaned the black spots off like never before. As for the wet and forget only time will tell. It does also work on black spots as I left some deck for w&f only. But the combination is what I will use from now on. I will try to remember to post later when I start seeing black spots reappear to give you an idea of how long the combination lasts. The only down side that I saw was the plants along side the deck did not like something as they burned just as badly as if I had used bleach. I don't know if it was the combination or one or the other.

In summary, there is hope out there and hopefully some of you with problems will get some take-home points from this thread and get your decks looking brand new again like I did. Thanks again to all of imput.


09:40PM | 10/15/10
Member Since: 06/22/10
2 lifetime posts
Well it has been 4 months since I applied the cleaners in the last post. To my surprise, it is still spot free. Our summer has been wet and I know that it would normally have shown spots long before now. I am very pleased with the combo. I will post again when we start seeing the spots


07:28PM | 05/10/11
Member Since: 05/10/11
2 lifetime posts
My timberteck deck is 3 years old and looks terrible. I selected a composite because I am a neat freak. I thought it would perform as advertised. I was totally mislead by their advertising. It is impossible to clean and the improvement is only minor and lasts for a very short period before the mildew returns. Additionally the deck has faded to a hazy gray. I am trying to determine what the best stain is to use on this deck even tho it voids my "warranty" (what a joke). Has anyone stained their composite deck and if so can you shareyour experience with me. Sh129


07:34PM | 05/10/11
Member Since: 05/10/11
2 lifetime posts
Has anyone gotten so fed up with timbertech's mildew and look that they have used a stain to cover it up? If so how did that work?


04:42PM | 10/28/11
Member Since: 10/28/11
1 lifetime posts
I have tried contacting the email address that is listed for a possible class action lawsuit and my email was returned. Can someone please let me know if there will be a lawsuit? I am sick that a deck I saved up to purchase for four years now looks terrible one year after me, my husband, and my 65 year old parents spent a month building it ourselves.
I have contacted Timbertech and have not received a reply since sending in my receipts and a letter through the mail. The only response I got was to do a warranty claim via mail and the response was received through email. Please help - anyone know if a class action has been started?


08:46PM | 02/05/12
Member Since: 02/02/12
8 lifetime posts
It seems like many other people are having similar problems with Timbertech lumber. From other posts, they mentioned that the lumber turned white. This is certainly not acceptable for a company that promised maintenance free use. I hope that you were able to claim fully, all your damages and costs incurred.
Best Regards,
Mark Richards


04:21PM | 04/05/12
Member Since: 04/05/12
3 lifetime posts
Consumer-rights law firm Hagens Berman filed a lawsuit on behalf of owners of Portico composite decking alleging that it the decking is defective and prone to mold and fungal growth that results in large black spots. The lawsuit claims that manufacturer Fiberon refuses to live up to its warranty obligations to replace or repair the decking. Consumers can learn more about the lawsuit here:


01:09PM | 04/29/13
Jdmaxdaddy, any update on how azek held up in buffalo?


02:00PM | 09/22/13
There is no update from Baldeaglebaby regarding the Corte Clean effect.
I have deck that is two years old and has black spots on it.
Do you all think cleaning it with Corteclean is the only way or there is more to it.
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