JUNE 2017 | 11
News
Read online at www.proinstaller.co.uk
Kayflow sees SuperDeep170 as being ideal for large commercial
developments such as agricultural buildings and hospitals.
Right system,
right capacity
But what does all this mean in
the real world of UK construction?
The simple answer, according to
roofline and rainwater systems
specialist, Kayflow, is to provide
the market with guttering systems
with the appropriate capacity to
do their job with optimal efficien-
cy, whatever the prevailing condi-
tions may be.
For areas of high rainfall in-
tensity, Kayflow has developed
a SuperDeep170, a PVCu profile
guttering system, designed to han-
dle a much higher flow rate than
standard guttering. With a market
leading flow rate of around 4.3 li-
tres per second, it has the capacity
to carry over 4.5 times more water
than a standard half round gutter
and nearly 2.5 times more water
than a standard deep system.
Kayflow sees SuperDeep170 as
being ideal for large commercial
developments such as agricultural
buildings, hospitals, schools and
factories. These types of buildings
generally have large roof areas
with high run-off potential and
therefore need a much bigger
capacity system. According to
Kayflow, SuperDeep170 can even
reduce the number of downpipes
needed with consequent reduction
in the frequency and lengths of
below ground connections etc.
Super Strength
A consequence of increased
capacity is an increase in poten-
tial weight-loading and resulting
pressure on the gutter fixing sys-
tem. The high strength bracketing
developed for SuperDeep170 is
said to be capable of holding over
125kg on one fascia bracket and
well able to handle the gutter sys-
tem running at full capacity.
A SuperDeep170 bracket
can hold over 125kg.
Standard rainwater products are
manufactured in round, square, deepflow
and ogee profiles and in a range of colours.
Expansion &
Contraction
Heat build-up is sometimes
seen as a downside to large
capacity, dark coloured PVCu
guttering systems due to the
volume of material in their com-
position. Thermal expansion
and contraction can result in an
increased risk of leaks but Kay-
flow has raised the benchmark
for the industry by co-extruding
the SuperDeep170 gutter profile
onto a white base with a black or
grey outer skin. The white base
material helps reduce heat build-
up through reflection, whereas
a black or dark, through-colour
would tend to absorb heat and
increase the risk of expansion/
contraction.
The dark outer skin co-ordinates
with other components in the
range and provides the required
aesthetic to satisfy the demands of
architects and other construction
professionals.
Wider range
Where high capacity systems
are not a requirement, Kayflow
has a range of standard rainwater
products, manufactured in round,
square, deepflow and ogee pro-
files and in a range of colours, all
well up to the job of rainwater dis-
posal from the roofs of everything
from garages to houses, flats and
small commercial buildings.
Also available are half-round,
ogee and deep profiles in cast
iron effect in black with specially
moulded components that closely
reflect the traditional detailing of
cast iron systems.
So, whether you are building in
the wetter parts of Wales and the
west or the drier corners of East
Anglia and the south, you can be
confident that the right rainwater
system, with the right capacity,
profile finish and colour is little
more than a phone call away.
www.kayflow.co.uk