: For maximum efficiency, look for low U-factors (insulating value) and a low Solar Heat Gain Coefficient (SHGC) to block heat in warmer climates. 0.5.5 , 0.5.24
: Known for being up to 8 times stronger than vinyl, preventing expansion and contraction for better long-term seals. 0.5.35 HOUSE WINDOWS
: Offers a classic aesthetic and high insulation value but requires regular upkeep to prevent rot. 0.5.11 , 0.5.31 : For maximum efficiency, look for low U-factors
: Hinged windows that crank outward, providing a tight seal and excellent airflow. 0.5.9 , 0.5.25 : For maximum efficiency
: The most common choice in the US (approx. 80%) due to its affordability and low maintenance. 0.5.1 , 0.5.31