Ultraframe Classic roof, Installation Manual

Page: 36 / 52

36
As with a standard ‘P’ shape, assemble as
much of the main Georgian (Or Victorian)
roof side as possible. Check the pitch.
Ensure the full ridge is level. Offer the
assembled half ridge to the host wall. Attach
at least two bars from half ridge to eaves
and then tighten down the nuts. Check the
pitch. When pitch is correct, mark the host
wall along the top edge of the half ridge.
1
To ensure the half is in the correct side-to-
side position, either attach the hipped end
starter bar and check pitch or ensure lean-
to transom bars (already attached) are at 90
degrees to the eaves and half ridge. Again,
mark the host wall when half ridge is set.
Remove bars, separate the two part half
ridge and secure the back section to the
host wall (as step 2, page 26) and then re-fit
the front carriage as step 3, page 27.
2
With the valley lowered into position (see
step 5, page 27) locate the short starter
bar from ridge to valley. Tighten nuts and
check the pitch of the short starter bar (this
should match the pitch of the other side of
the main roof). Ensure ridges are level. Re-
fit the half ridge rain baffle.
3
Drill and fix the valley back-plate to the
host wall (avoiding a mortar joint) using an
anchor bolt suitable for the substrate. Drill
and fix the starter bars (as step 24, p12).
4
With the pre-formed soaker clipped into
the starter bar, installed. The first stepped
lead flashing will need to overlap onto the
welded valley back plate (you may need to
snip and shape around the fixing). Then
continue up the slope.
5
With the roof now fully glazed position the
half ridge top capping to suit. The ‘nose’
will require notching to suit the valley top
capping.
6
Again, position and notch the half ridge end
cap to suit. Attach with suitable sealant. (LH
half ridge end cap shown)
7
Fit the horizontal lengths of lead flashing
along the appropriate course above the
upstand of the half ridge top capping.
8
Scribe a plastic trim to close the gap
between the half ridge and valley
undercladdings.
9
DROP VALLEY INSTALLATION
Cut and scribe
a plastic trim
SECTION 13