4. Remove the insulating material between the wall’s
outer surface and the inner lining for a depth of about
1" [25 mm] all around the perimeter (Photo 3). (Depth
depends on the reinforcing frames to be introduced in
the next step).
5. Insert reinforcing frames (e.g. wood) (Photo 4).
Hint: This „reinforcing frame“ is needed in order to
avoid permanently the insulting material being
compressed and the bending of the roof wall.
6. To check the cut-out, place the frame to check the
exact position before applying the sealant.
7. Clean the wall surface where the sealant is to be
applied (always follow the instruction of the sealant
supplier Photo 5).
8. A bead of permanently elastic sealant is applied all
around in the corner of the frame to seal the frame to
the vehicle wall.
9. Position the outer frame from the outside and
consider that the frame is aligned horizontally with an
equal contact surface all around. The frame and the
clamps are now srewed together from the inside.
Photo 3
Photo 4
Photo 5
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