Fire stopping: penetrations, installation and records
Services passing through walls and floors can interrupt a fire compartment boundary. Fire stopping is selected for the actual construction and services passing through it. Describe the existing conditions and proposed work; system selection, installation and supporting records belong together.
Separate new work, added services and repairs
Specify new openings, added services through existing seals or repairs to damaged installations. An initial survey can establish the scope. It does not replace required work or automatically provide a complete compliance record for the building.
Describe rooms, floors and visible changes. Open gaps, removed material and new cables are useful observations. Do not guess a fire resistance class or filling material; existing project requirements should be checked with the responsible designer.
Record openings and services together
The number of penetrations alone often does not define a quote. Match opening sizes, cables or pipe types and locations. Put different variants in one overview. A large mixed penetration involves different work from several small, accessible openings.
Pipe material, diameter and insulation matter; cable bundles, trays and future additions also affect the work. Unknown technical details can be surveyed on site. Known quantities and their allocation should still be clear so providers price the same scope.
| Information | Use in the quote |
|---|---|
| Opening and count | Allocate sizes and variants |
| Services | Material, occupancy and insulation |
| Construction | Wall or floor and known build-up |
| Existing seal | System identification and changes |
Match the system to the installation
The system must suit the construction it penetrates. Wall or floor, build-up, thickness and actual services affect the permitted application. A product marketed for fire protection is not automatically suitable for every opening. The specialist checks the relevant application documents.
Have available requirements from the fire strategy, design or authority ready. Resolve unusual details and deviations before installation. Product classification provides neither blanket approval nor suitability for arbitrary combinations of services.
Plan for later service changes
Where cables are added regularly, plan access and a suitable solution. Spare space does not permit any additional service. System type, occupancy limits and installation conditions still apply; later changes need a traceable reinstatement.
For an existing seal, identification, earlier records and visible condition help. Simply adding material or mixing systems is insufficient. Agree whether identification, removal of unsuitable parts, reinstatement and updated records are included.
Coordinate trades, access and sequencing
Electrical, plumbing and building work meet at the same opening. Agree when services are final and who reports additions or rework. Later work can alter an already documented seal. Responsibilities should remain clear through handover.
Providers need safe access. Height, concealed ceilings, tight shafts and ongoing operation affect labour and equipment. Agree opening and reinstating coverings, together with temporary protective arrangements, before areas are changed.
Connect installation and records
Agree identification of locations, systems and installation records. Photos before concealment can record agreed details. Documentation should match the installed variant and make later changes traceable. A photograph alone does not establish every hidden property.
Installer confirmation, inspection of work and overall approval are different tasks. Define who checks and follows up open issues. Work on individual seals does not automatically confirm the whole fire strategy or every existing penetration in a building.
Compare the same complete scope
Compare matching openings, services and conditions. A material or unit price without size, access and service type says little. Identify survey, preparation, installation and records separately. Unknown existing details need clarification rather than an assumption of free work.
Removal and reinstatement may be additional work when adding services. Check equipment, repeat visits, coordination and follow-up inspections. Agree how extra openings or unsuitable existing work are authorised and priced. A Swiss average cannot replace this scope definition.
| Work item | Comparison point |
|---|---|
| Survey | Which locations and records? |
| Preparation | Removal, access and reinstatement |
| Installation | Suitable system and actual services |
| Records | Identification, confirmation and open issues |
Prepare the request and handover
Prepare the reason, known number and one overview by construction, service type and variant. Keep identification, design and existing records for secure later coordination. Initial factual information is enough; confidential building protection plans need not be uploaded.
After the survey, confirm the solution, interfaces and scope limits. Agreed checks and records take place before concealment. At handover, reconcile the location list and work, record open issues and establish how future service changes are handled. Retain current records for operation.
Frequently asked questions
Must I choose a fire resistance class?
No. Supply any known requirements; the responsible designer and specialist establish the suitable application.
Can I add cables later?
Only within the system conditions, with suitable reinstatement and records. Spare space alone is insufficient.
Is fire-rated foam enough for every opening?
No. Construction, services and application documents determine the solution, not the product name.
How should different locations be described?
In one overview with count, location, opening size, service type and known existing details for each variant.
Does a survey provide approval?
No. Survey, assessment, necessary work and supporting evidence must have a clearly agreed scope.
What belongs in completed work?
Agreed installation, traceable identification and records, plus recorded open issues. Other trades and overall approvals are coordinated separately.
