I am looking for durable, UV resistant options for replacing about 1000ft2 of decking in the mountains of NM where we get lots of sun at 7000 ft elevation with a southern exposure. The deck is about 10 ft above ground. The UV here is much more severe than lower elevations and destroys natural products quickly. It is very dry here normally but we do get occassional rain and snow. The deck will be covered but is close to 100 ft long and about 10 ft wide along back of house so there is lots of exposure to the elements. I've heard mixed reviews on composites like trex or timbertech in this environment. I learned about DassoXTR and it seems like a viable alternative but haven't found any end-user information on how well it holds up, customer service, etc. I'd be especially interested in any experience from those in similar climates to mine. Thanks in advance for any assistance