Before any work is carried out, a full assessment of the risks involved should be
undertaken. Prior to any areas of the roofs being exposed, checks should be made
that sufficient replacement slates to match existing are available.
Where slates or remnants of broken slates have to be removed, this should be done
with a slate ripper, and all nail fixings are either removed or cut off close to
Make required alterations, additions or repairs; where possible ensuring all slates
have two secure nail fixings (or other recommended). Where nail fixings cannot be
achieved use Jenny Twin® fixings
The Jenny Twin® requires a new hole to be drilled or punched in the slates approx.
half batten width +5mm above the existing or normal holing gauge.
The Jenny Twin® is fitted by bending the tongue section down through the hole in
the slate and bottom leg of the clip. Bend the tongue section towards the centre
of the slate to secure.
Ensure the swivelled tail is correctly located and on the underside of the slate.
Upper or face of slate
Underside or bed of slate
Ensure the swivelled tail section is flat against the underside of the slate and
lay the slate on the roof. Push the slate into position, easing up the leading edge
of the slates above.
The use of a slate ripper or similar may help to guide the head of the slate onto
the support batten with some gentle leverage.
Once the slate is in line, the Jenny Twin® will drop into place securing the slate
behind the batten. Check that the slate is secure by pushing up and then pulling
down on the re fixed slate.