Firestop Big Opening

Hello Agra,

We would require more information (required fire-rating and whether it’s a wall or floor application) in order to provide an exact solution for this case.
 
Though, we generally recommend CP636 Firestop Mortar or CFS-COS Firestop Composite Sheet for large openings. 

Please provide us the above requested detailed information and we will be able to get back to you with specific solutions.

Regards,
Team Ask Hilti SEA

Hi Karan

Yes The fire rating would be 2 hour, it is floor application and the opening is 3100 x 2500 for the size