High Efficiency Windows Tempe, Az |verified| | Original

| Metric | What It Measures | Tempe Target | |--------|----------------|---------------| | | Insulation (heat loss in winter) | ≤ 0.25 (lower is better) | | SHGC (Solar Heat Gain Coefficient) | Solar heat blocked | ≤ 0.23 (critical for summer) | | VT (Visible Transmittance) | Natural light let in | ≥ 0.40 (so rooms aren’t dark) | | Air Leakage | Air infiltration through frame | ≤ 0.1 cfm/ft² |

: This metric measures solar radiation passage (0 to 1). For Tempe, an SHGC of 0.23 or lower is recommended by Energy Star to block maximum heat. high efficiency windows tempe, az

❌ Choosing SHGC > 0.30 – “But they were on sale.” ❌ Using clear glass double-pane – Almost zero solar protection. ❌ Hiring a general handyman – Arizona ROC requires specialty license. ❌ Ignoring west-facing windows – West exposure is worse than south in Tempe summers. ❌ Forgetting about HOA – Many Tempe condos (e.g., Lakes, Rivermark) have strict window appearance rules. | Metric | What It Measures | Tempe