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Ensure there is suitable support in the roof
structure to support the roof. The up stand kerb
should be finished to provide a flashing down on
to the roof surface below. The roof opening
should be designed to suit the lantern you have
ordered, or the roof lantern should be made to
measure.
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The
cill from the roof lantern should bedded on a
layer of neutral cure silicone, which should be
applied as a continuous bead around the base of
the roof lantern. This
will stop any leaks which might be caused by
high winds on rainy days
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Drill down through the cill with self tapping
screws in to the beam below at 400mm centre's
(approx) Ensure the screws are long enough to
securely fix the cill into place
Hint:
Check the diagonal sizes are equal before fixing
the cill into place to ensure it is square.
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Stand the window frames on the cill then add the
four corner posts screw into to corner posts and
down into the cill below.
Hint:
Screw the corner posts first ensure the windows
are in the correct place before fixing down into
the cill below.
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Add the ring beam screw up in to
the beam from the windows below and fix the
corner brackets in to place. Ensure the whole
beam is securely fixed.
Hint:
Fix
the four corner brackets first then check the
beam is sitting on top of the frames squarely
before fixing it to the frames.
On
bigger roofs its some times easier to fix the
all the roof bars on to the ring beam then lift
the whole lot on to the windows for fixing.
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There are two sets of brackets these will ensure
the beam is fixed and held tightly it binds the
four roof lantern outer frames together.
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Add
the straight beams and the ridge section to the
ridge beam bolt it to the ridge and to the ring
beam.
Hint:
Bolt the tops of the bars to the ridge section
then lift it on to the roof lantern line up the
bottom of the bars with the lower bolts and
tighten.
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The ridge beam has a d ring which will fix to
the hip bars as shown below.
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Fix the hip bars on to the d ring and bolt into
place
Hint:
Do not over tighten the top end of the hip bars
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Fix
the bottom of the hip bars as shown.
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For security the window frames are supplied with
an internal bead glazing system you can fit the
glass at this stage or leave it until the end
and then glaze it from the inside if access is
possible.
Hint:
Tap the beads in to place with a white headed
rubber hammer if required. Start with the
largest section of glass as the bigger they are
the easier they are.
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Put the glass in to place ensuring a clear gap
for expansion both sides of the glass.
Hint:
Also add the drip beads to to glass panels. |
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Put
the glass in to place ensuring a clear gap for
expansion both sides of the glass once you are
happy with the position you need to remove the
yellow backing to the glazing tape then drop the
glass down on to the tape. .
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Check
the bottom edge is correct before removing the
yellow tape. The glazing tape helps to reduce
noise and draft so its important not to forget
to remove the yellow top on the tape. |