TORCHSEAL DESCRIPTION
BITUMAT TORCHSEAL is a uniquely formulated
prefabricated waterproofing membrane with a
special multilayered design for superior pliability,
tensile strength, workability and resistance to
elements.
The multilayered design consists of a spunbonded
polyester core coated on both sides with APP
modified bitumen. The polyester core gives the
membrane high tensile strength, elongation and
superior lap joint strength.
Properly installed, BITUMAT TORCHSEAL forms
an impervious, permanently flexible waterproof
blanket which accepts normal structural movement
without breaking or cracking.
USES
BITUMAT TORCHSEAL membranes are ideal for
a wide range of waterproofing applications,
including roofs, reservoirs, basements, tunnels and
car parks.
BITUMAT TORCHSEAL may be utilized in
exposed and covered applications.
OUTSTANDING FEATURES
- Total impermeability
- Excellent resistance to aging and weathering
- Outstanding bondability and seam integrity
- Stability at high temperatures
- Very high resistance to impact & puncture
- Simple, single-layer installation reduces
labour & errors
- Variety of finishes for exposed and
covered applications
GENERAL DATA
Nominal Weight: 3, 4 or 5 kg/M2
Nominal Thickness: 3, 4 or 5 mm
Nominal Roll Size: 1 x 10 Mts.
Reinforcement:
Robust, isotropic, spunbonded, nonwoven
polyester core.
FINISHES
BITUMAT TORCHSEAL is available in three basic
finishes:
- Black smooth finish with polyethylene
surfaces for covered applications.
- Granule surfacing for exposed
applications.
- Fine sanded upper surface for coated
systems.
QUALITY CONTROL
In addition to stringent regular tests by BITUMAT
laboratory, our products are tested periodically by
Independent Laboratories.
STANDARDS
BITUMAT TORCHSEAL complies with the
performance requirements and tolerance levels of
the listed standards. Some of which modified to
better suit the various climatic conditions around
the world.
1. American Society for Testing and Material
ASTM D 6222 Type I.
2. European Union of Technical Agreement
(UEAtc)
3. Canadian General Standard Board (CGSB
37-GP 56M - July 1980).
4. German Standard (DIN 52133).
INSTALLATION TOOLS REQUIRED
- Gas torch
- Knife
- Trowel
- Measuring tape
- Marking string
- Gloves
APPLICATION
BITUMAT TORCHSEAL is installed by torch
welding method, loose-laid or fully bonded to
substrate. When loose-laid, only overlaps are
bonded together. Peripheres , protrusions and
other flashing details are installed according to
specifications.
COVERAGE RATE (Approx.)
(Rate may vary as per site requirement)
Flat areas: 1.15 M2/M2 per layer with 10
cm. side laps and 15 cm.
end laps.
Base flashing: 100x35 cms. with 15 cm. end
laps, 0.40 M2/ linear M
Average wastage : 3 - 5%
TORCHING GUIDELINES
The underside of the membrane should be torched
just enough to superficially melt the
bitumen. Excessive heating may damage the
reinforcement. Overlaps should be re-heated from
the top and re-sealed with a trowel to
ensure seam integrity. For details of installation methods and flashing
requirements, consult the relevant BITUMAT
Systems Design and Installation Manual.
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