System Components - UNIFOLD Clip Joint System - Back To Top
Unifold Clip Joint System is a patented system used to allow the installation of Unifold in difficult access
situations where the gutter is narrow, small or where sheet overhang is excessive and prevents access to
the extremes of the Unifold or where drill and rivet penetrations are un-desirable. Patent Number 2376481.
Installation progression
of a typical clip joint...
Outlets are provided to suit any existing
configuration in either membrane only, as outlet
liners, or metal/membrane for additional or
replacement outlets
Nb: When extra outlets are required all unifold
outlet types can be provided with an easily
removable blanking plate to allow the outlet to be
fitted but only to become operational when
pipework serving the outlet has been installed.
Corners are factory fabricated units, provided in
two parts, split along the centre-line of the Unifold gutter sole to ensure ease of site installation and
sealing. The gutter profile is factory sealed.
Tees are similar to corners but provided in three
parts, split along the centre-line of the Unifold
gutter sole.
Sumps and Side Boxes are factory fabricated,
sealed and installed within a small section of
Unifold. These small sections of Unifold are
usually multi-hinged to ensure maximum ease of
access and installation.
Lining systems need expansion and contraction
joints in certain circumstances to ensure that
outlet liners remain in position and fabrications are not stressed by
thermal or structural movement and to enable the system to
move in complete conjunction with the existing gutter
beneath. It is an integral part of the system and is
manufactured within an individual length of Unifold.
It is used to coincide with building expansion
joints, when Unifold installations exceed
100 metres or when Unifold must be
induced to move with the existing gutter in
installations where the thermal movement of the
existing gutter is greater than Unifold. eg. Aluminium and
G.R.P. gutters. The provision of an expansion joint creates a small
raise in the sole of Unifold and therefore should be positioned between
outlets or discharge points.
Section changes are factory fabricated and sealed sections that are hinged to provide maximum ease of installation.
N.B.
It is essential that Unifold is provided to site in its most complete form to ensure the system
can be installed as easily as possible. To facilitate this and whenever possible, all
fabrication is provided as a sealed unit installed within a small section of Unifold gutter.
This ensures that site operatives have the simplest of operations to fit the system, which
enables the highest quality installation.
Where a gutter is shared by two buildings or
companies and a division is required at the
party line or when lining the entire length of a
gutter is not required, then a permanent "tie off"
unit can be provided to attach and weather
the Unifold to the existing gutter.
Emergency "Tie-Off Kit" / Overnight Seals- Back To Top
It is highly undesirable to allow water to enter
the cavity between the existing gutter and
Unifold during installation. To ensure that this
cannot occur "Tie-off kits" are provided for
emergency and overnight seals.
Unifold can withstand, without problem, the
foot traffic sustained during normal
maintenance operations. There are occasions,
however, when the gutters are to be used on a
more regular and intensive basis. These
requirements are met with the Unifold Walkway
Pad System, manufactured from re-constituted
rubber, 6mm thick and provided in rolls
10metres long and to the required girth.
These pads are fully adhered to the surface of
the Unifold using a splice adhesive.
When it is necessary to traverse lightening
conductors across or along the length of
Unifold then saddle clips can be provided
which fully adhere to the membrane of the
gutter and securely hold the conductor
correctly and at a short height above the
Unifold surface.
