11
General
The available roof surface must be clean and even. It must not be too smooth or slippery; if the surface is
slippery (e.g., PVC, EPDM) an anti-slip mat or an appropriate separating mat (friction coefficient ≥ 0.0)
should be used.
Check that the installation surface (e.g., the existing roof structure) is designed to accommodate the additional
roof load.
Long Suntub® rows can impede the runoff of rainwater. If you are uncertain, we recommend having this
checked by a qualified expert.
1. Positioning the Suntub® Assembly System
The plastic body of the Suntub® consists of 2 parts which are fitted together (Fig. B1). Position the Suntub®
with the flat surface facing south so that the modules are tilted to face the incoming sunlight.
The side distance between the modules when fully assembled should be at least 8 mm for the setup without
connector. The distance between the modules for the setup with connector should be approx. 25 mm.
If the individual Suntubs® are to be joined together (to reduce the required ballast), the connecting elements
must be already put in place and fastened during positioning (Fig. C1.1, item 3).
C1
Setup
1 Suntub, right section
2 Suntub, left section
3 Connecting piece (optional)
The connecting piece is fastened to the
Suntub with 2 M8 screws at each end.
The Suntub is first lowered onto the
connecting piece and then the screws
are installed.
Fitting the Suntub and
connecting piece, with screws
3
2
1
Fig. C1.1
Assembly
C
