Preparing The Roof Duct; Installation Kits - Vaillant auroTHERM VFK 145/2 H Installation Manual

5 Assembly
5.2

Preparing the roof duct

b
Caution!
Danger of damage caused by water
penetration!
If the roof duct is not implemented correctly,
water can penetrate into the interior of the
building.
> Make sure that the roof duct is properly
implemented.
Fig. 5.2 Passing a pipe through the sarking membrane or
roofing felt
Cutting the sarking membrane
> Make a v-shaped cut in the sarking membrane.
> Fold the upper, wider flap on to the roof batten above,
and the lower, narrower flap on to the roof batten
below.
> Fix the sarking membrane tight to the roof batten.
This ensures that the dampness flows away to the
side.
Preparing board-clad roofs
> With board-clad roofs, cut out a hole with a padsaw.
> Make a v-shaped cut in the roofing felt.
> Fold the upper, wider flap on to the roof batten above,
and the lower, narrower flap on to the roof batten
below.
> Fix the roofing felt tight to the roof batten. This
ensures that the dampness flows away to the side.
12
5.3

Installation kits

The following illustrations show which parts you require
for multi-row in-roof mounting of vertical or horizontal
flat collectors.
> Have the required parts from the installation kits
ready.
> Check the respective deliveries for completeness
using the supplied material lists.
i
The collectors are arranged on top of and
next to one another:
- 2 to 12 collectors next to one another,
- 2 or more collectors on top of one another
(depending on the height of the roof).
i
Furthermore, with the VFK H it is only possi-
ble to mount two collectors on top of one
another.
Installation manual auroTHERM 0020100606_02