mcr-PROLIGHT
VENTS
,
TYPE
:
C,
E,
NG-A
O
PERATION AND MAINTENANCE MANUAL
Page 9 of 31
Fig. 4 Method of mcr-PROLIGHT positioning on the roof - fixtures spacing
The vent bases are ready for flashing works with roofing paper, PVC membrane or steel sheet,
The vent base, in its upper part, features a galvanized steel sheet strip at its full circumference,
which is used for fixing flashings/coverings using screws. For roofs covered with roof
membrane, an optional PVC-coated sheet strip may be used to facilitate installation.
Roof membrane is to be welded or glued in accordance with best industrial practice to the PVC-
coated steel sheet strip at the base's full circumference. Roofing paper is to be welded to the
galvanized steel sheet strip at the base's full circumference, and then fixed mechanically.
All flashing elements MUST be installed under the base eaves; do not twist them over the
eaves.
NOTE
1. If roofing paper is to be welded to the above mentioned sheet strip, IT IS
ABSOLUTELY REQUIRED to use a cover for protecting the vent glazing and
spacer sleeves from the effect of fire/hot air.
2. After installing the vent, protective foil must be removed from all external
aluminium elements of the vent (pressing frames, pressing strip) and from the
vent glazing (PCA, laminate panels, acrylic domes). Leaving foil on the device may
cause permanent discolorations of elements, and become hard to remove.
3. If the vent is not supplied to the construction site preassembled, maintain special
caution when installing polycarbonate panels. Damaging the tape protecting the
edges of polycarbonate panels will cause contamination to penetrate into the PCA
chambers, which is not covered by warranty.
