High Efficiency Windows Tempe, Az

⚠️ Many “Energy Star” windows for northern states have SHGC > 0.35 – too high for Tempe.

| Brand | Model | SHGC | U-Factor | Tempe Pros | |-------|-------|------|----------|-------------| | | Tuscany Series (vinyl) | 0.21 | 0.26 | Excellent heat rejection, local installers | | Andersen | 400 Series (Fibrex) | 0.20 | 0.24 | Low maintenance, good warranty | | Pella | Impervia (fiberglass) | 0.19 | 0.23 | Handles thermal expansion well | | Simonton | ProFinish | 0.22 | 0.27 | Budget-friendly, SRP rebate eligible | | Alside | Mezzo | 0.20 | 0.25 | Good for stucco retrofit (common in Tempe) | high efficiency windows tempe, az

| 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 | ⚠️ Many “Energy Star” windows for northern states

Installer of energy-efficient, double-paned windows for homes, plus some doors. Arizona Window Replacement Guide: Heat & Monsoon Solutions For the Arizona climate, a U-factor of 0

This measures how well the window prevents heat from escaping or entering. For the Arizona climate, a U-factor of 0.40 or less is standard, though ENERGY STAR 7.0 requirements now favor 0.32 or lower.

Request coatings. These block infrared (heat) but allow visible light. Two main types: