EXTRABIT is a waterproofing membrane made of distilled bitumen modified with SBS (styrene-butadiene-styrene) polymers that make it very elastic, resistant to thermal ageing and flexible at low temperatures. The elastomeric compound ensures ease of application, reduced consumption of gas and has excellent adhesion properties that ensure, when the membrane is properly installed, superior bonding and tightness of all joints and overlaps.
EXTRABIT is recommended as a base sheet or intermediate layer in multi-layer waterproofing constructions for flat, pitched or vaulted roofs, made of reinforced concrete cast on site or prefab, of terraces, under-flooring etc. In case of direct exposure to weathering agents, EXTRABIT Shall be protected with reflective paint or by a layer of self-protected (mineralised) membrane.
Destination of use: Underlay or intermediate later in multi-layer systems for roof waterproofing (EN 13707)
For further information contact your local depot for the TDS