Solex Roofing Installation Manual 25
Solex Energy Ltd +44(0)1305 837223 www.solexenergy.co.uk
IF A PATCH OF ROOF IS BEING COVERED JUMP TO 21
17. Eaves
– the eaves will overhang the first batten by 90mm
18. Verge
– If the roof runs from one verge to another it is an
advantage to design the roof to fit an exact number of slates,
to the nearest half slate, using the slating interval given. The
slates should be finished with a dry fit verge system, as
recommended by Nu-lok. If running out to a second verge,
which does not fit to the nearest ½ slate, polycarbonate slates
will need to be cut to fit.
19. Ridge
– the battens should be gauged out so that a full
course is present at the ridge. Finish with a dry fix ridge.
20. Hip
– polycarbonate slates are cut to size for use at a hip.
Refer to the Nu-lok installation guide to see details of
installation at hips. It is not recommended that a mitred finish
is used with polycarbonate slates.
21. Valley
– polycarbonate slates are used up the edge of a
valley. Again, refer to the Nu-lok guide for more valleys
details.
IF A WHOLE ROOF IS BEING COVERED SKIP 21 AND 22
22. Slating a patch
– a patch of Nu-lok solar slates may be
installed surrounded by compatible Nu-lok natural (300 x 400)
or ceramic (400 x 400) slates. Due to the unique nature of the
Nu-lok system, it is possible to achieve a straight vertical join
between the different materials as the link channels make the
joins weatherproof.
Use verge slates (600x400mm) to obtain the straight line with
the glass slates, and cut the natural or ceramic slates to
match.
23. Slating a strip
– when installing the solar slates into a roof
covered with an incompatible material – e.g. clay tiles – the
easiest method is to install the solar slates as a strip. This
method is the most suitable for retrofit situations, as the
existing roof can be stripped off from the top down.
If the conventional tiles or slates are considerably thicker than
the solar slates, the solar area will need to be raised. As a
counterbatten is required anyway, this may go part of the way
to achieving this extra height. Any extra height may be
provided by thicker spacing battens, or thicker counterbattens
with thicker insulation between them. The top of the insulation
should still be flush with the tops of the counterbattens.
At the bottom of the strip the glass slates will lap over the
existing material. Usually a strip of lead flashing 150-200mm
