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The
fitting of the
aluminium trims
is a simple
procedure but
it is very
important that
time is taken
to achieve a
good standard
of finish. You
should have a
hacksaw or
junior hacksaw
a pair of
pliers, a
pair of gloves
and depending
on the method
of fixing
either a screw
driver or a
hammer.
Depending
on your level
of experience
various levels
of finish can
be achieved
there are only
a few basic
bends used to
make the trims
fit. Most roofs
will only
require one or
two of the
below methods,
(although it is
not unheard of
to employ all
three methods
within the
length of one
trim)
familiarise
yourself with
them to decide
which methods
you need to
employ.
Methods
for bends: -
The
external
corner
Establish
where the
corner will be
situated in
relation to the
trim cut a slot
in the top face
of the trim,
from the open
edge to the
corner
Push
one side of the
cut under the
other whilst
bending the
trim, bend
until required
angle is
achieved. If
the angle of
less than 90º
is required a V
must be cut out
to allow the
trim to bend
more.
Internal
Corner
Achieved
in the same way
as external
corners except
an additional
cut has to be
made to the
turn-up of the
drip edge, this
is to allow the
trim to bend
without
buckling. The
gap that is
created on the
top edge of the
roof when the
trim is bent
this way can be
filled with a
square scrap of
trim. This is
only required
if the
cosmetics of
the top of the
roof are
important i.e.
if the roof is
overlooked.
Drip
Edge Closure
Used
to make the
front edge,
(were the roof
drip edge meets
the upstands)
look tidier.
The exact angle
and length of
the closure is
left to the
individual, the
only rule is
that, they must
be the same
size either end
of the drip
edge (for
cosmetics).
Firstly
decide how big
you want the
closure some
like to run it
all the way
down to the
guttering. Mark
the vertical
face of the
trim
accordingly and
cut a slot,
flatten (using
pliers) or cut
away sufficient
of the drip
turn-up to
allow a neat
bend
Now
that you have
seen the three
main methods of
cutting and
bending the
trims it is up
to you to
decide the
exact method
for fixing.
Fitting
the trims
On
a typical roof
it would go
something like
this:
Starting
at one end of
the drip edge,
decide what
size drip edge
closure would
look best. Cut
to suit and
bend to desired
angle and fit.
Closures are
not strictly
necessary the
trim can be
fixed level
with the corner
 as
shown
in the
diagram to the
left.
Butt
the next trim
up to the
first, if it
meets a corner
then mark that
point, cut and
bend
accordingly. If
a trim meets a
wall then it
should be cut
to length and
fitted.
The
remaining
perimeter of
the roof should
be done in the
same manner
being careful
to make the
other drip edge
closure the
same size as
the first to
keep the roof
looking
symmetrical
from the
ground.
It
should be noted
that NO
Trims are ever
fitted to the
drip edge
The
fixings used
are either
screws with cap
and covers or
poly nails
which are a
stainless nail
with a plastic
coated head.
Exact lengths
are to
determined by
the customer
but are usually
about 40mm
Although these pages are checked regularly and every care is taken with the information
within. Delston can not accept any responsibility or liability for information or results displayed within due to third
party interference. All information was deemed correct at time of publication.
Author Myrddin
Copyright © 1999 [Delston ]. All rights reserved.
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