Q. We put down Trex decking in 2008. The composite lumber has developed dark spots all over it. It started with a few spots and has multiplied over the two-year period. What is causing the spotting, ...

Q. The home we own in Chicago has a deck on the front of the house surrounded by a low fence. The deck boards are showing their age, some are rotting, and it looks like it's time to replace the ...

We replaced the old wooden flooring on our porch with some composite decking material seven years ago. Since then it has performed well. But this spring we’re noticing some green mildew on the last ...

Q: We have a 16-year-old Trex deck that has a lot of green and reddish-brown staining. Everything we have read online recommends using only soap and water for cleaning and discourages pressure-washing ...

Q: Your column "There are options for cleaning vintage Trex composite decking" was thorough about cleaning, but it really didn't help the homeowner in the long run. Our vacation house has Trex decking ...