The outer section is the actual crevice roost and is open at the rear.
There are two separate hanging zones inside.
Both zones taper upwards to 10 and 15mm respectively.
There is a deeper hanging area in the middle section, with around 3.5 cm depth available.
The surface structure of the inside has been developed further, to ensure a secure grip for the bats.
The outer section can be screwed onto the outside of the façade.
The surface of the façade then forms the rear wall inside the box.
We recommend that you seal the joint between the outer section and the façade with a suitable jointing compound (acrylic, silicone, etc.) to minimise the incidence of light and penetration of moisture.
However, in most cases the outer section is set into the façade (e.g. glued or bricked in).
The surface of the 3FE can then be rendered or be left unrendered, for example, if it is installed in fair-faced masonry.
Due to the open rear, the outer section is particularly suitable for maintaining existing roosts and to make their entrance in a structurally correct way, e.g. in case of insulation measures.
Siting & positioning:
3 - 5 m and higher
Cleaning and inspection:
» Rear panel for 3FE (Order No. : 00 791/9)
» Entry attachment for 3FE (Order No. : 00 792/6)
» 3FE screw and fixing set (Order No. : 00 793/3)
1 x Basic 3FE bat element (outer section)
(Outer section without rear panel, without entry attachment)
Concrete grey, uncoated
H 40cm x W 25cm x D 5cm