Performance first Thermal characteristics were the top priority in the design of the Alpine profile, achieving a U-value as low as 0.14 Btu/h‧ft²‧°F Glazing represents a significant insulation factor, keeping home warm in winter and cool in summer Thermal breaks Each Alpine profile includes at least two polyamide thermal breaks with λ=0.21 W/m⋅K, effectively preventing thermal bridging Thermal breaks Each Alpine profile includes at least two polyamide thermal breaks with λ=0.21 W/m‧K, effectively preventing thermal bridging Highest thermal efficiency profiles — NFRC simulated download NFRC test results Phenolic foam for ultimate performance Adding phenolic foam with λ=0.018 W/m·K significantly boosts the profile’s thermal сharacteristics Phenolic foam for ultimate performance Adding phenolic foam with λ=0.018 W/m·K significantly boosts the profile’s thermal сharacteristics To further enhance thermal efficiency of the Alpine profile, you can add: Up to 95% argon gasin the glazing units Triple-glazed IGUup to 42 mm thick AdvancedLowE coatings Certified by NAFS, Alpine profile meets or exceeds: A3 Air leakage Class CW Class 720 Pa Water penetration PG100 Performance grade 10 Forced Entry Resistance Grade Alpine profile ranks among the best-performing low profile systems up to 70 mm wide in North America Read more about alpine our products