Watertight joint profiles
BU2500 (BF20)

BU2500 (BF20)

  • with loose/fixed flange
  • for insulated constructions
  • sealing membrane approved by the building authorities


watertight, weather- and temperature-resistant (-40°C to +120°C), resistant to de-icing salt and waste water (alkalis, microbes, bacteria)


ceiling surfaces, roofs, inner courtyards


hot-dip galvanised steel, (stainless steel on request), joint tape BF20 made of EPDM with lateral bonding flanges made of non-combustible fleece on the top and bottom sides

Covering Types

asphalt, pavement, earth-covered areas

Formed parts

upstand, membrane upstand, corner piece, T-piece, cross piece, floor-wall connections


Watertight joint profile as loose/fixed flange construction.

This joint profile is also available for a bigger movement.

The joint tape is a product of the BBF ElastoFug joint tape systems.

Installation by our own fitters recommended.

Also available with joint tape BF40 as a result:
- Horizontal joint clearance: 80 mm (±40 mm)
- Maximum joint width: 70 mm and 100 mm

Technical data

Movement horizontal:
40 mm (±20 mm)
Maximal joint width:
80 mm
Supply length:
3 mtr


Article No. Profile height (h)
BU2500 (BF20) 36 mm
Technical design
Subject to technical change without notice
BU2500 (BF20)