Wall and ceiling penetrations in Welver sealed audit-ready, installed to approval, tracked in penetration plans for the consultant's sign-off.
Every wall penetration in Welver that crosses a fire-compartment boundary needs documentation: photo of the closed seal. Consultants check this every year. Insurers reference it in the schedule. A missing seal is the kind of finding that raises premiums.
We combine Promat, Hilti and Würth — system-open, brand-neutral in Welver.
Vertical penetration — usually box-style, accessible from above, expandable for future cables.
Cable and pipe in the same opening — Promat combination, Hilti CFS-CT, Würth fire-stop solution. Audit-ready in Welver.
Fire damper or duct seal — coordinated with the concept, integrated into the duct line.
Intumescent collar for plastic pipes, mineral wool insulation for steel — system-dependent, per approval, documented in the penetration plan.
Take over multi-brand stock in Welver, consolidate in the penetration plan, prepare for consultant sign-off. Specified per approval in Welver.
Classic in Welver stock: cables through F30/F90 wall, mineral wool with coating or board with collars.
Defines the S-rating for cable seals in Welver buildings.
Every system carries an approval number — we deliver the documentation in Welver.
Governs electrical line routing in fire protection — applies in NRW.
EI rating for penetration seals — used parallel to DIN, EU-recognised.
Ranges depend on opening size, density and system. Fixed quote after walkthrough.
Fixed offer after walkthrough in Welver.
Yes — as long as each position has an approval and the documentation is consistent. We take over stock brand-neutrally.
Call us — we take over the seal stock in Welver and continue it.
