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Besides KFORTS' high security performance, all our systems meet requirements in building physics up to the highest level. It features the sleek and delicate frame, concealed sash design, and ample light penetration.

U=1.0-1.5 W/(m²·K)

>16kPa/m³ (1800*1500)

≥ 700 Pa

Length of Seam: ≤0.5 m³/(m·h) Square: ≤1.4 m³/(m·h)

≥44 dB(A)
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System Building Physics. KFORTS Images |