INSTALLATION - RACKING
31
6. For thin tiles (such as slate, shingles), a
portion of tile must be cut and removed
from the tile above the tile roof
interface, creating a recess.
Suitable flashing must then be installed
around the tile roof interface, with an
overlap of at least 150mm at the edges
of the recess.
Now proceed to installation of the rails.
Refer to “Rail Installation” on page 33.
METAL ROOF INSTALLATION
Note:
Screws supplied with the roof interfaces are wood screws suitable for timber only. Screws used in
metal purlins must be suitable for metal structures and have a TPI (threads per inch) of 14.
1.
Determine and mark position of the metal roof
interfaces according to your plans. Pre drill
through roof cladding (on top of crest) at planned
locations. Place the supplied rubber gasket
under the metal roof interface and ensure that a
weatherproof seal is made between the interface
and the roof cladding.
2. Fix the metal roof interface to the timber batten
or rafter using the M6 x 90 mm screw supplied.
Ensure a 50 mm minimum screw embedment for
rafters or 35 mm for timber battens.
If the interface is being fixed to metal purlins use
screws suitable for metal structures with a TPI of
14.
3. Check the metal roof interface to ensure that the
fastening screw tightly fixes sealing gasket
without damaging roof cladding.
Now proceed to installation of the rails. Refer to
“Rail Installation” on page 33.
