The product is used for foundation waterproofing, including waterproofing under hydrostatic pressure, and radon insulation. The product is also well suited for radon insulation of basement spaces.
As far as using of torch-on membrane is allowed, Kerabit 3700 UT Fleece is also well suited for details of standing seam metal roof (e.g. upstands, valleys and chimneys), where Kerabit 2600 UB Fleece with self-adhesive edge is used as underlay.
Installation work should be performed by waterproofing professional.
Before applying the membrane make sure that substrate is suitable, dry and flat. If basement wall is made of lightweight concrete blocks it should be sealed through by thin plastering inside and outside from top to bottom up to the concrete footing. Substrate must be primered with Kerabit BIL 20/85 primer and dried.
Membrane is installed by melting plastic film and torch-on bitumen on the bottom side. Especially when installing several layers, please note that the bitumen that comes through the fabric is not a torch-on bitumen but intended for bonding the heat insulation. The tightness of the upper edge of the waterproofing is ensured with sealing mass or liquid waterproofing if necessary. In addition, adhesion of the waterproofing is always secured e.g. with plate-type fasteners or edge list.
When using e.g. Triflex waterproofing mastics for sealing the outlets, the upper surface of Kerabit 3700 UT Fleece should be heated carefully so that bitumen comes to the surface. Bitumen should be allowed to cool. Only then Triflex products can be installed.
Handling and storage
Modified bitumen membranes are to be stored on pallets in a dry and cool place. Use a plastic hood or tarpaulin for protection. When the outdoor temperature exceeds +40°C, the rolls must be protected from sunlight.