I'm sure you will get responses if you can SHOW the issues. Post some photos that illustrate what you're talking about. Show what the travertine that you already have and the "marbella" looks like. Show the layout (not close-ups.) To post photos here, paste their html code (you'll get it from your photo-hosting site) here, directly in your message. If you use right code, photo will show up in message preview.

My usual slow-to-warm-up self says that this is impractical for a pool of any significant size unless you have mucho $$ and an identified storage site, and that you have actually identified that the pool does not work well for your family's use of your property, but nontheless, it is reasonable to try to research the options. That may either get you to the product you desire or help you come up with a whole 'nother way to approach your living situation. There are some commercial products for this purpose advertised on the 'net. Dimensions are likely an issue--as in the above post, it would take different support structures and materials to span a large pool vs. something smaller. Also, have you focused on whether it is for repeated off-season uses, thereby requiring movability and "storage", or whether you wanted to keep your pool completely fallow for several consecutive years and then rev it up and dispose of the cover structure? That affects the design and $ issues. I say "storage" because one unique product I saw was a gazebo designed to slide over pool and then off to the side and be usable there. Whereas, if you have no other yard to speak of, then you have a different issue. There are also some previous GW threads on this issue.

We built a paver patio as a DIY project. It is a lot of physical work but the result speaks for itself. The most important part is to create a good stone base which has been compacted to eliminate settling. Your best resource would from patio books like are available at Home Centers for a few $'s. If you want a deck too, place your footings as part of the patio, then build the deck. I've not used composiste decking however I know there are special screws to eliminate the "mushrooming" you mention. If you look at the linked photos, you will see that we have an egress porch (deck) from the house onto the patio. Good luck. Here is a link that might be useful: Our Patio

Hello - I’m looking for someone who can install a patio/pool cover that slides. Something like these pictures.