We have an elderly uncle (82)living in a tri-plex (we own his unit). Generally each unit houses people age 75+. Each unit has an 8x10' deck on the rear side that is currently 20 year old wood. We'll try to fix all three at once. We've gotten bids to replace the decks and the materials presented were 1)Moisture Shield ($), 2) Genovations ($$) or 3) Timber Tech ($$$).

Anyone familiar with any of these? Pros and cons? I'm sure the biggest factor for unit holders is cost and then how hot the material gets in summer or how slick it might be when wet. And they really don't want mold or mildew or cracks that accumulate debris. They get a fair amount of shade. In our area we get hot summers (90-100) and cold winters (0). The residents really don't use the decks much, but they need something there as an exit point. Comments appreciated.