Metaal opstand 80x140 cm KFIW2O S 1000 2000 The Skylux® PVC adapter frame The Skylux® PVC adapter frame with inserts 1300 x 2800 mm is extremely suitable for both complete and partial refurbishments of existing skylights Excellent thermal insulation and 60% solar heat reduction thanks to solar control glass Standard: 40 mm rockwool insulation (U value: 0 there are options with a burglar proof grid