Accredited Test and Research
In developing UBLO, we went through many detailed tests and research processes relating to its thermal performance, water and air tightness, wind resistance, air ventilation efficiency and other relevant factors.

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Air Tightness
We tightly compressed EPDM gasket between the operable and fixed parts to achieve good air tightness. UBLO obtained the highest-grade KS certification based on the KS F3117:2015 test.

Water Tightness
UBLO frame and gasket are delicately designed with water drainage details to achieve perfect water tightness. UBLO obtained the highest-grade (grade 50 with test pressure of 500 Pa) KS certification based on the KS F 2293:2008 test.

Thermal Performance
UBLO has good thermal insulation performance with no exterior metal component exposed. We optionally provide Aerogel, a translucent high-performance insulation material, to be placed in the operable part to prevent condensation. UBLO has thermal transfer coefficient (Uw value) of approximately 1.47 W/m2K, which is comparable to that of general low emissivity insulating glass. 




Wind Resistance
UBLO fixed frame is installed securely to the glass using structural silicon sealant. The operable part attaches into the fixed frame by a sturdy fastener that is enough to resist a harsh typhoon. UBLO obtained the highest-grade (grade 360 with test pressure of 3600 Pa) KS certification based on the KS F 2293:2008 test.

Wind load resistance simulation in  3600Pa

Air Ventilation
One of UBLO’s major advantages is the freedom to select the perforation location for air ventilation. Generally, by installing 2 UBLOs, one each at the top and at the bottom part, the height difference creates air pressure difference which in turn optimizes indoor air ventilation.


© 2021 Ublo Inc.