4
On-Roof System Installation
16
On-Roof System
Installation
4.4 Slate Tile
Roof Anchors fixed to Rafters
1. On slate roofs, additional mounting
battens are fixed to the roof
substructure. Roof anchors ‘C’ are
fixed through the slate tiles to the
mounting batten (batten-mounted
installation).
Caution:
Never attach safety harness to the
installation system!
2. Expose the area required for
installation (length of mounting
batten). For roof anchor intervals,
see Page 8, 3.1 On-Roof System
installation.
Note:
As a rule, pushing up the roof slates
is sufficient. Horizontal positioning
of roof anchors is dependent
on the rafters and the tile valleys.
3. Mounting battens (18) are fixed with
screws to the rafters at a distance of
185mm from the roof batten below.
Note:
The distance of 185mm is
dependent on the roof anchor and
type of roofing and must be modified
if necessary.
4. Place the roof anchor (17) on to the
slate tile and mounting battens and
fix with screws (16).
5. Fix all further roof anchors in the same
way. For roof anchor intervals, see
Page 8, 3.1 On-Roof System
installation.
Note:
Roof anchors must be horizontally
and vertically aligned.
65mm
250mm
30mm
50mm
Horizontal-Distance
Horizontal-alignment
Vertical-alignment
Vertical-Distance
Figure 30:
Horizontal and Vertical Alignment
Figure 29:
Horizontal and Vertical Alignment
16
17
18
16
17
Figure 31:
Fixing Mounting Battens
and Roof Anchors
Figure 32:
Fixing Mounting Battens
and Roof Anchors through Sarking
Note:
If roof is fully sarked (timber boards)
then mounting anchors should be
screwed through sarking into the
rafters below.
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