Velux GGU INTEGRA Uživatelský manuál stáhnout pdf (Strana 25)

Installation of a roof window

VELUX 25

Interior

THE VAPOUR BARRIER

When a VELUX roof window is installed

any vapour barrier present is penetrated. It

must be re-established with a membrane

that connects the window to the vapour

barrier within the roof/wall construction.

VELUX vapour barrier collar BBX is the

easiest solution.

If the membrane used is not a VELUX

vapour barrier collar BBX, this membrane

must be connected to the window rebate

at the frame with butyl or acrylic joint ﬁller

to ensure tightness. Where the window

aperture meets the interior ceiling the

membrane must be connected to the va-

pour barrier of the house by means of tape

or tight overlapping joint.

THE LINING

When establishing the lining between the

window frame and the interior ceiling ﬁnish,

try if possible to make the lining horizontal

at the top and vertical at the bottom. This

gives the best warm air circulation across

the inner pane surface, the best inﬂux of

light and the best view.

When using VELUX linings, the lining is

assembled before being clicked into the

rebate in one piece.

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Velux GGU INTEGRA Uživatelský manuál Strana 25