The underside of the membrane should be torched just enough to superficially melt the bitumen. Excessive heating may damage the re-inforcement.
Overlaps should be re-heated 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 ROOFSEAL 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
BITUMAT ROOFSEAL is a pre-fabricated polymer modified bitumen membrane designed for economy and easy applications.
BITUMAT ROOFSEAL “P” is re-inforced with a non-woven polyester fabric, whereas BITUMAT ROOFSEAL “G” is reinforced with a glasfiber mat. The re-inforcement is impregnated and coated on both sides with polymer modified bitumen.
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