7
POSITIONING THE VENT
NOTE: Before glazing it is advisable to
separate the various bar caps and
covers, the side bar caps, the gable
end bar caps and the bar caps for the
roof. The roof bar caps come in 2
lengths, the covers in one.
33. At this point the roof vent and vent stops must be slid
into the groove provided in the ridge (a vent stop
either side) and located over your chosen vent
aperture, do not tighten the vent stops at this stage.
(as drawing above).
GLAZING THE ROOF
Please refer to glazing plans.
34.Starting with one side of the roof and with reference
to the glazing plans identify the glass required and a
corner bar cap (No. 14, ID Chart), position the first
pane of glass and secure bottom of the bar cap with
two self tapping screws (No.17 ID Chart). On models
with a single piece of roof glass take care to feed the
glass into the ridge section and fix the other length
of bar capping. Finally fit the bar cap cover (No13,
ID Chart).
35.For models with 2 pieces of glass in the roof position
the next pane (610 x 610mm), taking care to feed the
glass into the ridge section. This pane should overlap
last sheet by 10mm approx, then place bar cap in
position and screw down with self tapping screws.
Totally secure the bar cap using self tapping screws.
Fit the bar cap cover (No.13, ID Chart)
36.Now glaze the roof section diagonally opposite (on
the other side of the greenhouse) in a similar way and
this will help to check that the frame is square.
37. Continue to glaze one of the sides of the roof following
the same procedure, using standard roof bar caps (No.
15, ID Chart)
38.When you reach the vent position it will be necessary
to slide the vent a short distance each way while the
bar cap is secured.
39.To secure the roof vent raise the vent from inside the
greenhouse, this will allow access for locating and
fixing the vent stops.
40. Now with one side of the roof glazed and with the roof
vent(s) secured repeat the glazing procedure for the
opposite side.
Glazing the Roof
vent
ridge
ONLY ‘MALE’ FINIALS ARE SUPPLIED. THE TONGUE
NEEDS TO BE REMOVED FROM ONE OF THEM AND
ALSO THE LAST PIECE OF CRESTING TRIMMED TO GET
THE CORRECT FINISHED LENGTH. THE MODIFIED
FINIAL CAN BE FIXED WITH SOME SILICONE.
RIDGE CRESTING AND FINIALS NEED TO BE
POSITIONED BEFORE GLAZING THE ROOF.
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