When we first purchased our home there were trees near the decks on the north side of the house and we had a constant problem with mildew on the decks and on the houses siding. We cut the trees down to eliminate some of the shade. But it still came back. We bleached the decks and power washed the siding with bleach and other commercial products that claimed to eliminate the mildew. It appeared to be gone. But before long there it was again. So we bleached everything again and purchased paint that was supose to prohibit mildew. :no: No it didn't work, and within a years time the paint faded and peeled too. We have spent hundreds of dollars fighting a loosing battle. So instead of fighting it over and over each year and spending more money we are considering the new vinyl deck and rails which are very expensive but well worth the cost if they will help. I realize we will probely still have the mildew problem but some bleach and a power sprayer is much cheaper than repainting every year. Does anyone have any experience with the new vinyl decking and railings? Is it easy to install, durable, sturdy? Our back deck is up at least 10 feet and I need to make sure it will be sturdy if someone leans against the railings and will the vinyl flooring hold up to heavy weight? Any other alternatives you might suggest? I am so sick of painting every year but the mildew is so ugly and we don't want it to spread to the roof. Help if ya can? Thanks!