The product is used as an underlay membrane for discontinuous roofings on, for example, machine-seamed and other steel and tile roofings. The top surface with no sand does not scratch the zinc coating of the steel roofing.
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.
Before installation, the rolls must be stored at a temperature of +15 °C, or warmer, for at least a day. The membrane rolls are unrolled in advance to straighten
out, which prevents bumps in the product. The time that the straightening out requires depends on the temperature (approximately 1 to 4 hours).
As far as using of torch-on membrane is allowed, Kerabit 3700 UT Fleece is 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.