Greven needs penetration seals that hold the fire-compartment boundary, pass the inspection, get signed off.
The right system depends on context. Mineral wool with coating handle most wall penetrations in Greven stock; mortar systems go in for higher loads. Combined cable+pipe penetrations need a system that's approved for both.
We combine Promat, Hilti and Würth — system-open, brand-neutral in Greven.
Cable and pipe in the same opening — Promat combination, Hilti CFS-CT, Würth fire-stop solution.
Take over multi-brand stock in Greven, consolidate in the penetration plan, prepare for consultant sign-off.
Classic in Greven stock: cables through F30/F90 wall, mineral wool with coating or board with collars.
Vertical penetration — usually box-style, accessible from above, expandable for future cables.
Intumescent collar for plastic pipes, mineral wool insulation for steel — system-dependent, per approval, documented in the penetration plan.
Fire damper or duct seal — coordinated with the concept, integrated into the duct line. Specified per approval in Greven.
EI rating for penetration seals — used parallel to DIN, EU-recognised.
Governs electrical line routing in fire protection — applies in NRW.
Every system carries an approval number — we deliver the documentation in Greven.
Defines the S-rating for cable seals in Greven buildings.
Ranges depend on opening size, density and system. Fixed quote after walkthrough.
Fixed offer after walkthrough in Greven.
Yes — as long as each position has an approval and the documentation is consistent. We take over stock brand-neutrally.
Walkthrough in Greven → defect list → fixed offer.
