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Fire protection · Fire stopping
Fire stopping – sealing every opening in a fire-rated wall or floor
A fire-rated wall is only as good as its weakest opening. Pipes, cables, ducts and joints pass through compartment walls and floors; fire stopping seals those openings so fire and smoke cannot spread – with collars, wraps, sealants, compounds and slabs tested as complete systems.
- E · I
- Integrity and insulation what a fire stop must keep
- Tested systems
- Product + wall + service must match the detail
- F · T ratings
- US listings ASTM E814 / UL 1479
- Conlit®
- ROCKWOOL range supplied by World Steel
Penetration seals and joint seals
Penetration seals close the gap around services passing through a wall or floor. Plastic pipes need intumescent collars or wraps that crush the softening pipe shut; metal pipes and cables need insulation and sealants that stop heat being conducted through. Linear joint seals close movement joints, the head of walls and the gap between floor slab and curtain wall.
Every fire stop is a tested system: the product, the wall or floor type, the service (material, diameter, insulation) and the installation detail must match the test evidence – EN 1366-3/-4 in Europe, ASTM E814 / UL 1479 in the USA, AS 4072.1 with AS 1530.4 in Australia.
Gamme de produits
ROCKWOOL Conlit® fire stopping products
Official ROCKWOOL products supplied by World Steel – each page has data and the manufacturer's documents.
Firestop systems by type
Mortars, pillows, coated batts and linear joint seals – penetration and joint seals tested with the wall or floor type.
Firestop · penetration and joint sealsFirestop mortarsA strong, permanent seal for large, busy penetrations – poured or trowelled around the services.Penetrations and jointsUseEI / F-T ratings per testClassificationVoir le produit →Firestop · penetration and joint sealsFirestop pillows and bagsPillows that can be taken out and put back when cables are added – ideal for live plants and data rooms.Penetrations and jointsUseEI / F-T ratings per testClassificationVoir le produit →Firestop · penetration and joint sealsFirestop coatings for cables and battsCoatings that slow fire spread along cables and turn stone wool batts into tested penetration seals.Penetrations and jointsUseEI / F-T ratings per testClassificationVoir le produit →Firestop · penetration and joint sealsFire-rated linear joint sealsGaps between walls, floors and façades move – their fire seals must move too.Penetrations and jointsUseEI / F-T ratings per testClassificationVoir le produit →Gamme de produits
ROCKWOOL Conlit® fire stopping products
Official ROCKWOOL products supplied by World Steel – each page has data and the manufacturer's documents.
Normes et conformité
Standards for fire stopping
Most often specified in our export markets.
Europe
- EN 1366-3Fire resistance tests for service installations – penetration seals
- EN 1366-4Linear joint seals
- EAD 350454 · EN 13501-2Assessment of penetration seals; classification (E, EI)
United States
- ASTM E814 · UL 1479Through-penetration firestops (F, T, L ratings)
- UL 2079 · ASTM E2307Joint systems; perimeter fire barriers (curtain wall)
Australia & New Zealand
- AS 1530.4 · AS 4072.1Fire tests; service penetrations and control joints
- NCC Spec. 13 / C3.15Protection of openings and penetrations
Synthèse fournie à titre indicatif – le cahier des charges du projet, l'édition du code adoptée et l'autorité compétente prévalent.
Choose the seal
Which product for which service?
Typical uses – always follow the manufacturer's tested system details.
| Opening | Typical solution |
|---|---|
| Plastic pipes (PVC, PP, PE) | Intumescent pipe collar or wrap |
| Metal pipes | Stone wool pipe insulation + sealant or compound |
| Cables and cable trays | Coated stone wool slab, ablative coating, putty or compound |
| Large mixed openings | Firestop compound or coated slab |
| Linear joints, head of wall | Intumescent or silicone sealant over stone wool backing |
| Slab edge / curtain wall | Stone wool curtain wall fire stop + smoke seal |
| Electrical boxes | Intumescent putty pads |
FAQ
Questions fréquentes
What is the difference between fire stopping and fire protection?
Fire protection keeps structural members strong in a fire; fire stopping seals openings in fire-rated walls and floors so fire and smoke cannot pass through.
Can I use any fire-rated sealant on any penetration?
No. The rating applies only to the tested combination of product, wall or floor, service and detail – follow the manufacturer's system.
Does World Steel install fire stopping?
We supply Conlit® products with the building envelope and pass the manufacturer's system details to your installer.
Need fire stopping for your project?
Send the penetration schedule – we propose Conlit® systems and quote them with the envelope.