For all wall types and occupancy densities. Cable seals in walls are the most common form of penetration seal. Depending on wall type (concrete, masonry, drywall) and occupancy, different systems are used — we plan, supply and install.
A wall cable seal closes a cable penetration in a fire wall fire- and smoke-tight. The fire resistance must match that of the wall (S30 / S60 / S90 / S120). Evidence is provided through DIBt approval (abZ) or European Technical Assessment (ETA). Installation must follow the manufacturer's instructions strictly — wall type, occupancy density and minimum distances are defined in the approval. Labelling with a seal plate is mandatory: manufacturer, system, installation date, installer. Without labelling the seal counts as defective.
Each wall type has its own requirements. We choose the system by approval — not by marketing.
All systems usable (soft seal, mortar, modular). Minimum wall thickness usually 100 mm. Standard case in industry and commerce.
Soft seal, mortar and modular systems. Plastered surfaces unproblematic; with non-load-bearing walls auxiliary structures may be needed.
Only with systems specifically approved for light walls — soft seal and some modular systems. Check approval carefully.
Soft seal and mortar with product-specific approval — not every system is approved for aerated concrete.
Simple with mortar or soft seal — small penetration area, low occupancy.
Larger openings — usually soft seal or modular systems; plan reserve area for re-occupation.
Survey of all wall penetrations with measurements and occupancy.
Manufacturer-independent — matched to wall type, occupancy and re-occupation needs.
Delivery of approved materials scheduled to site.
By trained team with current manufacturer records.
Seal plate, photo, as-built plan.
Photo documentation for authorities and insurers — digital.
Pillar with all classes and systems.
Comparison ceiling vs. wall — chimney effect in focus.
Compliant remediation in existing stock.
Overview of all sealing types.
Annual visual inspection with photo record.
We check your existing wall seals and remediate defects. Survey free of charge.