36
Installation Manual: BIPV Modules
35
Installation Manual: BIPV Modules
5�3�4 Mounting the Lead Flashing
1. Roll the lead flashing out over the bottom row of battens and the wedge plank and place it in such a way that the lead
flashing extends past the wedge plank on both sides by at least 150 mm respectively.
If the lead flashing comprises several strips:
2. Ensure the strips overlap by at least 100 mm.
For roof slopes <22°:
3. Place the lead flashing in such a way that the top edge of the lead flashing extends past the top edge of the bottom batten
by 20 mm.
For roof slopes >22°:
4. Place the lead flashing in such a way that the top edge of the lead flashing is flush with the top edge of the bottom batten.
Figure 30: Lead flashing on roof slopes < 22°
5�3�5 Laying Cable Conduits, Connection Cables and Cable Strings
1. Lay cable conduits for connection cables and cable strings according to local and national regulations.
2. Lay connection cables and cable strings according to the string plan.
2. Place a screw in the position of the left-hand reference point E
L
(1).
3. Place a screw in the position of the right-hand reference point E
R
(2) (distance to left-hand reference point = B
GR
).
4. Stretch a tension line tightly between the two reference points E
L
(1) and E
R
(2).
5. Measure along the line from E
R
(2) to E
L
(1) a distance of 4 “units” (e. g. meters) and mark the point (3) with a screwed-in wood
screw.
6. Attach the tape measure to right-hand reference point E
R
(2) and draw a “compass circle” with the radius of 3 “units” in the
right-hand top corner of the PV array.
7. Attach the tape measure to point (3) and draw a “compass circle” with the radius of 5 “units” in the right- hand top corner of
the PV array.
- The intersection of the two compass circles is point (4).
8. Extend the line from the right-hand reference point E
R
(2) to (4) at the height of H
G
on the PV array; this gives you the
preliminary right-hand top reference point R
R
(5).
9. Mark the right-hand top reference point R
R
(5) with a screwed-in wood screw.
10. Attach the tape measure to the wood screw (5) and draw a “compass circle” with the radius of B
GR
in the left-hand upper
corner of the PV array.
11. Attach the tape measure to the left-hand bottom reference point E
L
(1) and draw a “compass circle” with the radius of H
G
in
the left-hand upper corner of the PV array.
- The intersection of the two compass circles is point (6), the preliminary left-hand top reference point R
L
.
12. Measure the diagonal of the PV array from point (1) to point (5).
13. Measure the diagonal of the PV array from point (2) to point (6).
- The diagonals must be the same length within the limits of measurement accuracy.
14. Check that the reference point in the left-hand top of the PV array R
L
. is at a distance of ca. 30 mm from the vertical tile edge.
If this is confirmed:
15. Mark the right-hand PV array edge (2) to (5) across all battens, e. g. with a tension line.
5. Feel out the positions of the two screws that mark the bottom reference points E
L
and E
R
, pierce the lead flashing at these
points or make 2 short crossed cuts.
6. Press the screw heads through the lead flashing.
7. Remove the two screws, put sealing washers on them and screw them back in so far that the screws are still protruding
about 20 mm from the lead flashing.
8. Flange out the top edge of the lead flashing about 20 mm wide.
