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The LUMEAL concealed opening frame concept totally moves away from the traditional sliding pocket window and architects can now create new fixed-sliding combinations. It is therefore possible to produce asymmetrical 1-leaf + fixed frames, with a large section fixed and an opening section the size of a door without increasing the amount of aluminium visible.
LUMEAL can also be used to manufacture large sliding pocket windows, up to L 4.50m x H 3.50m with 2 or 3 rails and up to 250kg per leaf.
Using concealed opening technology, LUMEAL boasts an acoustic performance that far exceeds that of conventional-design sliding windows: Up to 37dB (Ra, Tr) for a 1-leaf patio door + 1 fixed frame.
LUMEAL may be equipped with a threshold that facilities the movement of mobility-impaired people.
The locking mechanism is integrated in the fixed frame, which helps to delay forcible entry.
In 4 or 6-leaf applications, the 76mm central mullion maintains delicate lines.
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