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In order to save building energy by securing high insulation, high airtight performance and prevent condensation caused by insufficient heat insulation performance, the combination of various technologies such as insulation structure with high thermal insulation / thermal bridge interconnection structure / airtight packing material improves the performance of existing general doors

Features of complex performance doors

Material:
Electrolytic Galvanized
Iron core material:
door frame = single-sided silver foil Glass Wool
Door = Ceramic board / Mineral Wool

Performance test results
Condensation prevention performance:
constant temperature and humidity room 25 ℃ 50%, low temperature room -20 ℃
Thermal transmittance rate:
1.11W / ㎡k (Certification applicable range: Thermal transmittance rate 1.8W / ㎡k or less)
Airtightness performance:
0.35㎥ / h • ㎡ (Certification applicable range: 2m3 / h • ㎡ or less)
Fire resistance test:
60 minutes of non-insulation
Suitable difference test:
0.6㎥ / min • ㎡ (Performance standard: 0.9㎥ / min • ㎡)
Door set:
Door set: - Torsion stress (40): (At 400N load) No abnormality
– Vertical load strength (75): (at 750N load) No abnormality
– Impact resistance (50): (at 50 cm drop height, sand bag impact) No abnormality
– Open/close repeatability (100,000 times): No abnormality at the repeated test of opening and closing of 100,000 times

Comparison structure and technical characteristics of composite performance door

General door

Highly airtight composite performance fire steel door



Door frame
Improvements    ＼   Category General door Complex Performance Fire Steel Door
BAR type Iron plate integration Double line punching
Anchor Flat Plate iron Plate flat iron Anchor
Gasket Straight Wing Type Flame Retardant Packing
Filling agent Cement mortar filling Glass wool
Door
Improvements    ＼   Category General door Complex Performance Fire Steel Door
Inner filler Honeycomb Double line punching
Filling Adhesive Urethane bond Mineral Bond
Door thickness 40/47T 47/60T
Fireproof pins 無 有