You'll need Denver concrete professionals who design for freeze–thaw, UV, and hail. We specify 4500–5000 psi, air‑entrained mixes (w/c ≤0.45), #4 rebar at 18-inch o.c., Class 6 bases compacted to 95% Proctor, https://phoebebafe098514.anchor-blog.com/18817977/concrete-experts-serving-denver