11
Flat Roof Application
(for pitched roof applications see p4)
Before you start your installation, ensure you have sufficient extension tubes to
cover the installation distance (refer to chart on page 3). This section of the guide
shows a retrofit installation into a felt roof. If your roof covering is being installed at
the same time as the Solatube® Daylighting System, it is possible to install the roof
flashing to the decking, with the felt or membrane covering the metal flashing/
upstand.
Positioning
Select the desired location for the ceiling diffuser
and roof flashing. Ensure the tube’s path from the
ceiling to the roof is free from any obstructions.
Note that you will be able to align the ceiling
and top tube assemblies by rotating their 0-30°
adjustable angle adaptors as required.
Carefully cut the appropriate sized aperture in the
ceiling, avoiding joists and obstructions:
Install the ceiling tube assembly
Insert the ceiling tube assembly into the aperture
and turn the twist-lock fastening clamps clockwise
with a screwdriver to clamp the ceiling tube
assembly lightly in place (do not over tighten).
These clamps may be loosened later to allow
the ceiling tube assembly to be rotated to help
alignment with the top tube.
Locate the centre point above the aperture in the
ceiling and mark the position for the roof flashing so
that it can be located from the rooftop.
Solatube®
160 DS
Solatube®
290 DS
375mm
diameter
275mm
diameter
Cut the ceiling aperture