Solex Roofing Installation Manual 16
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nearest ½ slate, polycarbonate slates will need to be cut to fit.
17. Abutments
– these are slated in the same manner as verges,
but omitting the verge clips unless there is a gap for a lead
valley etc. Lead soakers are used in the usual manner.
18. Ridge
– the battens should be gauged out so that a full
course is present at the ridge. The ridge slates are hung on
slate hooks which where possible are 15mm shorter than
standard. A screw and plastic retaining ring screwed between
the slates and into the top batten prevents sideways slippage,
and secures the slates until the ridge tiles are fitted.
A verge-to-ridge corner, depending on whether it is on an odd
or even course, may require a ½ verge-eaves/ridge slate (500
series, 250x285mm) or a 1½ verge-eaves/ridge slate (600
series, 450x335mm).
19. Hip
– a range of cut corner slates are available to use at a hip.
They fit in many places, but not all, so some polycarbonate
slates will be required as well. Generally we recommend 70%
cut corner slates (mixed) and 40% polycarbonate slates (10%
leeway on quantity). A normal cemented or dry fix ridge can
be used over the glass solar slates.
20. Valley
– polycarbonate slates are used up the edge of a
valley.
21. Polycarbonate slates
– these are easily cut with a jigsaw or
handsaw over the edge of something solid – e.g. using the
gap between two scaffold boards. They may be fixed using
standard slate clips, and/or drilled and screwed. When drilling
take account of where the holes will fall in relation to the
weather lapping of other slates around it.
IF A WHOLE ROOF IS BEING INSTALLED SKIP 21 AND 22
22. Slating a patch
– a patch of solar slates may be installed
surrounded by compatible natural or artificial slates. These
conventional slates must be 250 x 500 to match the 500
series solar slates, or 300 x 600 to match the 600 series.
Note, there will be one more course of glass slates than there
are courses of absorbers.
When using 500 series slates, the first row of glass 500 x 500
slates is laid over the first course of absorbers, using a glass
250 x 500 slate if necessary to get the correct width of cover.
The second row will then start and finish with a 375 x 500
glass slate, to maintain the correct bond. As long as there is
an even number of courses of absorbers there will no problem
at the top of the solar area reverting back to the conventional
slates – if there is an odd number of courses of absorbers the
slate bond will be disrupted.
