UL 1479 / ASTM E814 TESTED
INTERTEK
HELWE
MODEL VM
Firestop Brick
Modular firestop filling for openings with cables, pipes and duct systems. Bricks are fitted around the penetrants and the perimeter is sealed with intumescent sealant.
F rating3 Hr
T rating3 Hr
System up to4 Hr
Tested systems with VM
| Assembly | Products | Rating | Report |
|---|---|---|---|
| 3 Hour firestop assembly | VM brick, V3J sealant, VR putty | F 3 Hr / T 3 Hr | 250731051GZC-001 |
| Metal duct through concrete wall | VC sheet, VR putty, V3J sealant, VM brick | F 4 Hr / T 4 Hr | 250731051GZC-002 |
Tested by Intertek to UL 1479 / ASTM E814. Ratings apply to the assembly as tested; follow the system drawing for opening size, penetrants and installation.
System drawings from the Intertek test reports
Typical applications
Cable openings
Firestop brick + intumescent firestop sealant
Electrical cabinet entries
Firestop brick + intumescent firestop sealant
Fire barriers
Firestop brick + intumescent firestop sealant
Specifications
ModelVM
Product typeModular firestop brick
PenetrantsCables, pipes and duct systems
Tested ratingF 3 Hr / T 3 Hr; system up to 4 Hr
Test standardUL 1479 / ASTM E814 (Intertek)
Dimensions[to confirm]
Packaging[to confirm]
Frequently asked questions
Which sealant is used with VM?
In the tested assemblies, VM is combined with V3J Intumescent Firestop Sealant, and VR Firestop Putty where gaps around penetrants need filling.
Can VM be used for metal ducts?
Yes. Report 250731051GZC-002 covers a metal duct through a concrete wall with VC, VR, V3J and VM, rated F 4 Hr / T 4 Hr.
How do I get the right system drawing?
Send us the opening size, wall or floor type, penetrants and the required rating. Our engineers match the tested assembly and send the drawing and reports.
Used together in tested systems
Specifying VM for a project?
Request a Quote for VM