APP Modified Bitumen Waterproofing Membrane
COLBETOMO APP is an atactic polypropylene (APP) modified bitumen waterproofing membrane with non-woven spun-bond polyester or glassfiber reinforcement designed for general waterproofing applications.
Types of Finishes
Available Thickness
Packaging:
COLBETOMO APP is supplied in rolls.
Available in 2mm, 3mm, 4mm and 5mm
Roll Dimension:
1m x 10m
Storage:
COLBETOMO APP must be stored in a well ventilated, covered storage area away from any source of direct heat. Rolls must be kept in an upright position at all times.
Shelf life:
12 months from the date of production if stored properly in original unopened packing.
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Surface Preparation
The surface to be waterproofed shall be sound, clean and uncontaminated, free from dust, nails or any deleterious matter.
Priming
A coat of ASFABIT must be applied to the concrete surface and must be allowed to dry completely before the application of the membrane.
Application
COLBETOMO APP membrane are installed by torch welding. The membranes are laid over the area they are to be fixed overlapping each other by at least 10cm. Lap joints should shed water towards the drains.Without changing the orientation, roll back the membrane. Unroll the membrane once again and heat the underside properly to allow the surface to melt. End laps should be from 12 - 15cm. COLBETOMO APP should be heated from the top to create a thin bead of molten bitumen at the seam. Using a trowel, smoothen the surface to ensure a properly welded joint.
Exposed Roofing Application
COLBETOMO APP mineral membranes which are manufactured with self-protecting layer of natural slates are used for exposed applications, roofing and skirtings. Scrape off 15cm of mineral flakes or press in the slate and expose the bitumen by heating 15cm of the mineral surface sufficiently to make end of roll joints. Next roll will be torched on the exposed bitumen area.
COLBETOMO APP have no health hazard when used with our standard application recommendations.
The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updates on regular basis. It is the user’s responsibility to obtain the latest version.
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