ARDEX WPM 444 (Shelterbit Phoenix Star) is an APP
(Atactic Polypropylene) plastomeric type modified bitumen membrane, consisting
of a specially formulated bituminous compound of distilled asphalt modified
with selected high grade visco-elastic polymers and reinforced with a combined
reinforcement (polyester and fibreglass). ARDEX WPM 444 (Shelterbit Phoenix
Star) is certified in Great Britain with BBA No 99/3586/C and in Italy with
Technical Agreement I.T.C. 591/03. ARDEX WPM 444 (Shelterbit Phoenix Star) is
coated with either a sanded or talc top surface finish, while the bottom
surface is embossed and protected by a heat sensitive polythene film. This type
of finish for the lower surface has been chosen for two specific purposes.
1. To act as a temperature gauge during application. When
the film melts it shows that the compound is at the correct temperature.
2. The embossing is to allow the gases to rapidly escape
when heated to its correct installation temperature avoiding possible problems
of bubbling and blistering.
APP modified compound
Excellent cold flexibility to -15oC
Heat welded laps provides homogenous joint
Good elastic memory
Combined reinforcement carrier
High mechanical characteristics
High puncture resistance
Will not decay
ARDEX WPM 444 (Shelterbit Phoenix Star) is designed for
use as a multi-layer system on concrete or plywood substrates, or as a single
layer system on concrete substrates with a protective topping such as paving
slabs or concrete.
Non-accessible flat roofing
Accessible flat roofing
Foundations and underground premises
Renovation and refurbishment
Inverted roof systems
Bridges, viaducts and road structures
The application of ARDEX WPM 444 (Shelterbit Phoenix
Star) should be carried out by an approved Applicator. Installation shall be
strictly in accordance with the manufacturer’s recommendations. Acceptable
substrates to which ARDEX WPM 444 (Shelterbit Phoenix Star) is to be installed
must be properly prepared prior to membrane installation. All surfaces must be
dry, clean, smooth, free of sharp edges, loose or foreign materials, oil,
grease and other materials which may damage the membrane. Prior to the
application of ARDEX WPM 444 (Shelterbit Phoenix Star) base substrate surfaces
should be primed with ARDEX WPM 240 (Shelter Primer). Coverage of primer will
depend on the porosity of the substrate. ARDEX WPM 444 (Shelterbit Phoenix
Star) is normally fully bonded to the prepared substrate with side laps of
100mm and end laps of 150mm. Overlaps shall be sealed by torch. ARDEX WPM 444
(Shelterbit Phoenix Star) may be used in various combinations to produce a
variety of specifications tailored to suit the individual waterproofing need.
ARDEX WPM 444 (Shelterbit Phoenix Star) is used as a single layer membrane
system which is normally installed prior to the installation of toppings, road
base or hot melt asphalt or bitumen. Application of toppings may be applied on
completion. Road base may be installed directly to the membrane without an
extra protection layer. The asphalt should be applied as soon as possible after
the ARDEX WPM 444 (Shelterbit Phoenix Star) membrane has been installed. ARDEX
recommend applying a minimum 50mm compacted overlay for carpark areas. The
topping should be applied in two layers at a temperature of between 120-150oC.
ARDEX WPM 444 (Shelterbit Phoenix Star) is not classified
as dangerous goods. However during installation exercise caution when working
with open flame. Examine all surfaces to which the flame has been applied for
smouldering or burning conditions. Do not use open flame on or near highly
combustible materials. Follow all local fire codes.
All rolls of ARDEX WPM 444 (Shelterbit Phoenix Star)
should be stored in a covered area protected against sunlight and UV radiation.
Rolls should be stored in a vertical position on a smooth floor so as not to
damage the edges.
Roll size: 1m x 10m Roll weight: Approximately
40kg Rolls per pallet: 23