7
2.1 Prior to installation
Prior to installation of solar collectors, select a suitable
position respecting the following conditions:
• roof facing South
• roof inclination (25°- 45°)
• unshaded place
• accessible for servicing
• permissible roof load
• shortest possible distance between the collectors and
thermal store / stoage water heater
Further have ready the necessary material, tools and
safety equipment for working on a roof.
Check if the roofing manufacturer offers roof hooks and
if the roof warranty will not be violated.
2.1.1 Installation with roof anchors and au-
xiliary boards
Prior to installing anchors on auxiliary boards, the fo-
llowing shall be ensured:
• The auxiliary board length shall exceed the length of
the rail by at least 200 mm on each end.
• The auxiliary board width shall be between 100 and
200 mm.
• It shall be 30 mm thick.
• The height of the auxiliary board from the counter
batten shall be equal to the batten thickness which
can be reached by underlying the auxiliary board (see
Fig. 3
).
Installation
• Remove roofing so that auxiliary boards can be
inserted (approx. distance between boards 800-900
mm). For roof tiles, just shifting them upwards in the
length of the auxiliary board is sufficient (see
Fig. 4
).
• Fit the auxiliary boards to battens so that the distribu-
tion of anchors resembles the positions in Fig. 2. At
the same time screw the boards so high that the roof
anchor does not hinder placing the roof tile with the
right overlap (see Fig. 8).
• Hang the roof anchors onto the auxiliary board
respecting their distribution shown in Fig. 2.
• Fit the anchors using stainless steel screws.
2.1.2 Installation with roof anchors for rafters
For tiled roofs, rafter anchors can be used. Either a fixed
(not adjustable) stainless-steel hook (Fig.7a) can be
used, or an adjustable aluminum anchor (Fig. 7b) that
enables horizontal shift of the anchor along the fastening
40
30
10
30
30
auxiliary board
battens
counter batten
rafter
waterproofing membrane
underlay
room for an auxiliary board
counter batten
rafter
roof battens
Fig. 3: Underlay to match thick battens
Fig. 4: Remove roof tiles to fit the board
auxiliary board width is
100 - 200 mm
Summary of Contents for KPG1H-ALC
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