Single hung windows are a desirable choice for homeowners looking to conserve the architectural or historical integrity of their home.
Model | U-factor (W/m² – K) | Solar Heat Gain (SHGC) | Energy Rating | ENERGY STAR Zone(s) 2015 | ENERGY STAR Zone(s) 2010 | Layers of Glazing | NRCan Reference | Energy Efficiency Verification Reference | U-factor (Btu/h/ft² – °F) | Visible Transmittance | Air Leakage – Infiltration (l/s*m²) | Air Leakage – Exfiltration (l/s*m²) |
SHT_IS_CLRCARD-ARG90-CARD180#3 | 1.72 | 0.53 | 32 | 1|2 | ABC | 2 | NR9161-12601997-ES | W535-1 | 0.3 | 0.61 | 0.53 | 0.48 |
SHT_IS_CLRCARD-ARG90-CARD180#3-ARG90-CLRCARD | 1.68 | 0.48 | 30 | 1|2 | ABC | 3 | NR9161-12602001-ES | W535-1 | 0.3 | 0.56 | 0.53 | 0.48 |