Bituminous welding membranes with a schist aggregate layer
The IZOELAST REFLEX P4 FLL plus bitumen waterproofing membrane is used as the upper layer in two- or multi-layer green flat roofs and features substances to prevent root intrusion. The membrane is protected by a layer of schist aggregate on the top and by a fusible film on the bottom. The membrane is installed by welding with a 10 cm overlap. The product complies with SIST EN 13707 (finishing layer) and SIST 1031.
- reinforcement: polyester felt
- flexibility at: -15 °C
- flow resistance: 100 °C
- breaking force longitudinal / transverse: >600 N / >500 N
- elongation at break: >35 %
To protect the bitumen membranes (reflex membranes), schist aggregate is used, the colour shade of which may vary slightly from one production batch to another. This does not affect the product functionality.