TROCAL offers many 76 mm variants for its double seal, centre seal, and residential door systems of PVC-U.
Systemy okien & drzwi : 76 mm systems
A double seal system is defined by its two sealing levels. Both an internal and external permanently elastic weather seal provides the perfect protection between the sash and window frame.
A centre seal system not only has an internal and external weather seal, but also features a third sealing level that is fitted at the centre of the outer frame and is therefore invisible. This safeguards better thermal insulation values.
In addition to its window and balcony, terrace, sliding, and lift/sliding door systems, TROCAL also offers a wide range of PVC-U residential door variants.