BITUMAT TORCHBOND is a prefabricated waterproofing membrane with a special multilayered design for outstanding pliability, tensile strength, workability and resistance to elements. The multilayered design consists of a glassfibre core coated on both sides with bitumen. The bitumen is a catalytically air blown asphalt. The glassfibre core gives the membrane good tensile strength and excellent dimensional stability.
BITUMAT TORCHBOND combines the proven waterproofing quality of bitumen and the sureness and simplicity of torch-on application. Properly installed, BITUMAT TORCHBOND forms an impervious, flexible and waterproof blanket which accepts normal structural movement without breaking or cracking.
BITUMAT TORCHBOND membranes may be used for a wide range of waterproofing applications including roofs, reservoirs, basements, tunnels and car parks.
BITUMAT TORCHBOND is installed by torch welding method, loose-laid or fully bonded to substrate. When loose-laid, only laps are bonded together.
Peripheries and protrusions are sealed according to specifications.
(Rate may vary as per site requirement)Flat areas : 1.15 M2 /M2 per layer with 10 cms. side laps and 15 cms. end laps. Base flashing : 100x35 cms. with 15 cm. end laps, 0.40 M2 / linear Mtr. Average wastage : 3 - 5 %
The underside of the membrane should be torched just enough to superficially melt the bitumen. Excessive heating may damage the reinforcement. Overlaps should be reheated from the top and resealed with a trowel to ensure seam integrity.
For details of installation methods and flashing requirements, consult the relevant BITUMAT Systems Design and Installation Manual.
Bitumat was founded in 1984 but its roots go back to 1975 when the founders became involved in the roofing waterproofing industry as dealer and applicator in Saudi Arabia for a major manufacturer from the U.S.A.
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