Any ideas on how to remove mildew stains from Trex brand decking?
by
Cocotel
+9
We had Trex installed about 4 yrs ago and although it is nice to never have to stain again, the mildew really shows on it. It's difficult to clean as most deck cleaners are not suitable for composite decking (stating that right on the product container). The deck looks terrible. As an aside, anyone planning on using this material should be aware that it does fade - a lot. Ours gets a ton of sun and has it ever faded.
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Suggested Project Book
https://www.hunker.com/12174936/how-to-remove-mold-mildew-from-trex-decking
Ask Trex or their supplier?
Try powerwashing the deck, on a mild spray, If you don't have one, rent it from a place like Home Depot or Lowe's, it's not expensive. You can rent for half day or entire day. (24 hrs).
And get Krud Kutter cleaner at Lowe's..works great for us!
If you have a carpet shampooer, I'd be willing to try that on it, I'd add some ammonia to the clean water tank, & the brushes would do the scrubbing.
Powerwash
Wipe with a Heavy Duty Mr. Clean Magic Eraser, followed by a hose.