Velux GGU INTEGRA Manuel d'utilisateur télécharger pdf (Page 52)

Special installation conditions

52 VELUX

UNDERROOF OF MASONITE PLATES

Connection to underroof of masonite plates can be made either

with VELUX underfelt collar BFX or with standard underfelt in

rolls.

Note! If no counter battens have been used in connection with the

masonite underroof, it may be necessary to make a "frame" around

the window to which the underfelt or the underfelt collar can be

ﬁxed. The "frame" can be made by placing inﬁll battens between

battens along the sides of the window. Subsequently, the underfelt

or the underfelt collar can be connected below and along the sides

of the window as shown.

Connection to hard underroof

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Velux GGU INTEGRA Manuel d'utilisateur Page 52