You need Denver concrete specialists who design for freeze–thaw, UV, and hail. We mandate 4,500–5,000 psi, air‑entrained mixes (w/c ≤0.45), #4 rebar at 18 inches o.c., Class 6 bases compacted to 95% Proctor, and https://reganfajx956282.blogdeazar.com/38737731/denver-residential-concrete-experts