Kerabit 3200 UTL Fleece

Kerabit 3200 UTL Fleece is a line-torch-on (K-TMS 170/3200 torch-on) underlay membrane of product category 2 for multi-layer roofing. The product also serves as an underlay (AKE and AKK 1) for non-continuous roofing and as a vapour-barrier membrane (BH 1).

The carrier is of polyester. The lower surface of the product is torch-on bitumen and the upper surface is polypropylene non-woven fabric.

The product has been approved for use in buildings with the Nordic Swan Ecolabel.


Manufacturer / Manufactured for Kerabit Oy, Lohja plant
Country of origin Finland
Conformity marking CE
Reaction to fire Manifacturer´s declaration of the fire test
Fire Classification


Manufacturer’s declaration of conformity Kerabit modified bitumen roofing
Quality control Quality control carried out at the Plant quality control and a quality control agreement between the Plant and Eurofins Expert Services Oy
SFS-labeling K-TMS 170/3200 torch-on
Product category TL 2, AKE, AKK 1, BH 1
Nominal thickness approx. 2,6 mm
Nominal weight 3200 g/m²
Weight of the supportive layer 170 g/m² (+/- 5 g/m²)
Supportive layer polyester
Surface type

PP non-woven fabric

Rolls size 1 x 10 m / 10 m²
Packages / pallet 24 rolls
Weight / package 32 kg
Weight / pallet 793 kg


The product is used as an underlay membrane for multi-layer roofing, as an underlay for non-continuous roofing and as a vapour-barrier membrane.

Handling and storage 

Modified bitumen membranes are stored on pallets in a dry and cool place in an upright position. The rolls must be protected with plastic hoods or tarps. In temperatures in excess of +40 °C, the rolls must be stored away from sunlight.