Our back deck measures roughly 20'x20'. It was a bit neglected before we bought our house 8 years ago. I let it go for another couple of years. About 4 years ago I power washed it, replaced a few boards and then painted it with that heavy "deck rehabilitation paint". I never was really crazy about the look of the paint.
This deck is on the west side of the house. There are also thick woods on that side of the house. The deck only gets a few hours of direct sunlight a day, so mildew is a bit of an issue. This deck is also where I keep my grills and where we have a table and chairs.
A couple of months ago I was out powerwashing the deck before my daughter and her boyfriend came over and my foot went right through one of the boards. Poked around and found a few more rotten ones. I need to do something!
At a minimum I'd like to pull all of the existing boards off and lay new decking. This would give me the ability to just put regular deck stain /water protection down. This would also more closely match the front deck.
BUT... I'm thinking about doing something a bit different. I've seen people online that cover an existing concrete patio with outdoor tile that has a "wood look" to it. Would it be possible to lay down concrete board and then cover it with tile? Would it hold up? The type of board I'm thinking of is what is used to line shower stalls that are then tiled over.
My joists are 24" OC, so I might have to add extra joists, or at a minimum, more blocking between the joists.
I've seen systems that are designed to go over the existing framing so you can lay patio pavers on top, but I can't do this as I need to keep the deck surface thickness very close to the existing surface thickness.
A couple of pics of the existing deck for reference purposes....