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24h / 365days

We offer support for our customers

Mon - Fri 8:00am - 5:00pm (GMT +1)

Get in touch

Cybersteel Inc.
376-293 City Road, Suite 600
San Francisco, CA 94102

Have any questions?
+44 1234 567 890

Drop us a line

About us

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Have any Questions? +49 (0)521 4536177

General info


Since 2008, functional-design has specialized in the particularities of the installation titus of roof hoods on series and GRP high roofs on motorhomes with a roof hood in the front bow area. The GRP roof spoilers take this unfortunate installation position into account and optimize the aerodynamics and aeroacoustics in combination with our sealing variants. By conviction, the roof spoilers are only available in combination with the corresponding mounting or gasket packages. The high-quality GRP roof spoilers (made in Germany) are created using a complex hand-laminating process. The concave adhesive shoulder adapts optimally to the front panel of the vehicle. The most commonly installed roof spoiler is the MIDI-HEKI or MIDI-HEKI STYLE from Dometic-Seitz (You can find the difference here).
For a possible order (The right Spoiler) please still provide the following information:
- MIDI-HEKI or MIDI-HEKI Style forced-ventilated YES/NO
(Difference between unventilated and forced-ventilated MIDI-HEKI)

- MIDI-HEKI or MIDI-HEKI Style Crank version YES/NO
- MIDI-HEKI or MIDI-HEKI Style Bracket version YES/NO

(click here to see the difference between MIDI HEKI and MIDI HEKI STYLE)

Depending on the MIDI-HEKI version, it might be useful to use the KBM bracket clamp pair or the supplementary clamp pair (Accessories).
Please note that with a Skyroof in front of the MIDI-HEKI or MIDI-HEKI Style no GRP roof spoiler mounting is possible.

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