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Metal roof
For roofs made of metal, the roof seal must reach
up to the roof ridge. If this is not satisfied, extension
plates must be used.
Loosen the roof ridge plate.
Start by installing the enclosed weatherstrip at the
bottom edge of the roof seal to prevent moisture
being blown in.
Then place the roof seal in position, centre around
the chimney. If the cone’s opening does not corre-
spond with the roof angle, it can be cut horizontally
(see diagram 2, The cone). Screw the roof seal in
position.
Then extend with plates if necessary from below, up
towards the roof ridge. Ensure that runoff takes place.
Reinstall the roof ridge plate over the roof seal or
extension plate.
NVI 2000 - ROOF HOOD
Installation advice, Alumembrane.
Installation advice, alumembrane.
It is important to seal the transition between the roofing and pipe/wall/boxes/skylight or other parts of the roof
where there is a requirement for a mouldable solution. Our alumembrane with its self-adhesive sealing edge
provides secure protection against the penetration of snow and rain. NB: It is important for the surface to be
cleaned of dirt before installing the membrane.
The membrane must not end with an open edge facing the roofing
at the top edge. It must be inserted underneath to ensure an over-
lap, at least 10 cm.
There must not be any pockets where standing water can collect.
This is particularly important at the top edge. It may be necessary
to install bushings here of the same height as the top of the profile
on the roofing.