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Effects of relative movement between the wall and services on the firestop system

Posted by Saab Woutsalmost 4 years ago
Effects of relative movement between the wall and services on the firestop system

*Question asked during our webinar “Hilti Firestop Solutions on 01-04”*
I assume the seismic movement of the wall relative to the through penetrant needs to be addressed by the mechanical/electrical engineer on either side of the penetration through the fire separation?

seismic,firestop,design,movement,penetration

1 Reply
Posted by Saab Woutsalmost 4 years ago
Hilti Verified

As all firestop products are applied or installed around the periphery of the service as a system, so therefore yes, they move with the services and the wall. However, the compliance (or non-compliance) of the movement of firestop as a system, along with substrate and penetrant, can be established by performing a test and giving a rating for the movement capacity.


Currently we have only one standard available globally to assess the movement of the firestop system – ASTM E3037-16 “Standard Test Method for Measuring Relative Movement Capabilities of Through-Penetration Firestop Systems”. As far as Hilti Firestop systems are concerned, many of our products are tested and compliant with ASTM E3037. Check out Below is a link to a video on movement in firestop.


https://www.youtube.com/watch?v=HpBl__EhIG0


It is not very clear as to who are the right stakeholders responsible to address this. It has been seen as a global best practice that architects/non-structural designers/fire engineers/MEP consultants consider movement criterion as a key requirement in the design stage itself.


seismic,firestop,design,movement,astm E3037