Metal flashing keeps the water out. No water. No rot. No rot no ants馃槧 This just made the price of the job go up a few grand. Now we need to beam the joists and Jack the house up. Then I we can replace the rotten wood. When it comes to carpenters cheaper is seldom better....
I was thinking of decking boards on a floor deck...I used linseed oil mixed half with paint thinner and painted a long deck with that before staining it...