
Improved Insulation & Windproof
LOY Series
The Loy Series is designed to improve thermal insulation performance
by blocking heat conduction by the metal surface of metal plates such as iron plates placed on the outer surface of the front door.
It is an entrance door with an improved insulation and windproof structure that allows you to increase airtightness.
Choose your Entrance door wisely


Now, energy efficiency is important,
The houses of the future are not only about windows, but also about insulating the front door
Did you know that heat entering and leaving your home from doors and windows accounts for a much larger percentage than your roof or exterior walls?The patented, European-style, high-density, high-insulation Loy Series will maximize whole-home energy efficiency, reduce condensation, and lower heating and cooling costs.Combining advanced technology, user-friendly convenience, and luxurious design, the Loy Series promises to elevate your home with industry-leading insulation performance.

Based on the international standard NFRC 100-2010 Exterior, using THERM7.6
Interpretation : A lot of red color appears on the inside of the door, indicating that the insulation performance is effective.
Can be installed anywhere in South Korea
Loy Series has grades applicable to all regions of South Korea.
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u-factor 0.653Less than or equal to 1.5
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Condensation performance:
frame 0.07 / door 0.17Standard : 0.22 or less for frame /
0.3 or less for door -
Standard : 0.22 or less for frame /
0.3 or less for door -
Many design registrations.
Key Features
The Loy Series was designed with the goal of being the best insulated front door and finished with the best product.It's not just the design, it's what you don't see that makes it different.
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A luxurious look with no edges
Patented technology eliminates the blades for a beautiful look.
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Ultra-smooth hinge
Abrasion resistant, low coefficient of friction self-lubricatingTeflon ring inserted in the middle of the hinge to make opening and closing extremely smooth to open and close.
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Perfect sealing and improved sound insulation
The gasket is made of EPDM with excellent elasticity and resilience.The three-layer sealing structure improves airtightness and sound insulation.The elasticity of the gasket ensures a smooth closure when the door is closed
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Designed for thermal performance.
The four-sided wing system, which is standard for European doors, is applied to achievefor excellent insulation and airtightness.
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Safe finishes
Corners and cut edges can be sharp.
We use specialized finishes for these parts to keep them safe. -
Insulated doors with natural light
Designed to bring natural light from the outside in, making the interior feel bright and airy.
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Glass for heat and security
<5T + 6T spacer + 3T PC +16T spacer + 5T>
The triple-layered glass provides excellent insulation performance.
In addition, opaque polycarbonate is inserted between the glasses to prevent it is not damaged by external impact and provides privacy. -
A complete natural-light system, even out of sight
The natural-light area is also covered with a thermal barrier.
The exterior is decorated with aluminum, but the invisiblethe interior is made of PVC, a material with low thermal conductivity.
Edge finishes for safety are standard. -
Anti-slip features
The non-slip bumps on the top of the doorstep provide added safety.
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Blocking heat transfer from the outside
Even if your insulation is perfect, heat from the outside can still get through the walls.
Entove Series provides a second layer of insulation between the insulated frames.
For you, Loy series
Perfect insulated door
We've spent years researching, developing, and refining our insulated doors to make them more perfect.modifications and improvements over the years to create a more perfect door.We recommend a good door for your home.