GXLA 68

VELUX side-hung roof exit window

GXLA 3068

left-hung seen from the outside

(interior finish - wood, clear lacquer; exterior cover - aluminum dark gray)

The VELUX craftsman’s roof exit GXLB with right opening, is designed to provide safe and convenient access to the roof. It opens outward and stays firmly in place.

Made from high-quality lacquered or white-painted pine wood like our standard wooden roof windows.

The window used as a craftsman's roof exit can be installed in roof pitches between 15° and 60° to the horizontal.

Window Code	Width in mm	Height in mm	Effective Daylight Area in m2	Geometric Free Area in m2
FK06	660	1178	0.47	0.54
MK04	780	978	0.47	0.53
MK06	780	1178	0.59	0.66
MK08	780	1398	0.72	0.81

Due to the extra sound reduction feature, background ventilation is not possible.

规格

Performance window characteristics	Performance
Thermal transmittance (U-value)	1.1 W/(m²K)

Light transmittance (τ,v)	0.68

Total solar energy transmittance (g-value)	0.49

Sound insulation (Rw)	35(-1;-3)dB

Air permeability, [class]	3

External fire performance - British [class]	AA

External fire performance - European [class	npd

Impact resistance [class]	3

Load-bearing capacity of safety devices	✓

Reaction to fire [class]	C-s1,d2

Resistance to snow load	See glazing composition

Resistance to wind load [class]	C3

Water tightness [class]	9A





Glazing unit	Composition (from inside to outside)
Triple-glazed	6.8 mm float glass - 13 mm Argon - 3 mm heat strengthened glass - 13 mm Argon - 4 mm toughened glass

技术规格

唯一参考GXLA-68
类型对象（单个对象）
发布日期2026-02-01
版本号1

链接

技术说明https://contenthub.velux.com/api/public/content/56883-22b13-c84a5_downloadOriginal?v=c3aa0bfe

分类

BIMobject 类别窗户 - 天窗

发售地区

欧洲	亚洲
乌克兰	土耳其
保加利亚
克罗地亚
匈牙利
塞尔维亚
拉脱维亚
捷克共和国
斯洛伐克
斯洛文尼亚
波兰
波斯尼亚黑塞哥维那
爱沙尼亚
立陶宛
罗马尼亚