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  1. PassiveFireProofer

    connecting to existing steel with concrete fireproof

    If you answer my questions below I will supply the repair wordings. The "fireproofing" to be removed is cast-in-place concrete?? Or, is it light weight cementitious aggregate (LWCA) Are there older documents/prints that clearly identify the concrete as "fireproofing" with Assemby Rating per...
  2. PassiveFireProofer

    Connections to Fireproofed Beam

    @jayrod12 I did answer that last night. It is hard to do this without (at least) looking at sketches.
  3. PassiveFireProofer

    Commonly used Structural Fireproofing

    thread507-358014 There are several WELL TESTED (UL, ICBO) structural fireproofing products available in the Marketplace. The best names are ISOLATEK / CAFCO , CARBOLINE and GRACE. The advantages of specifying ALL 3 are enormous. They are: 1) Free market forces control pricing 2) Your Client...
  4. PassiveFireProofer

    Connections to Fireproofed Beam

    One of the possibility would be to use Fire Rated sheet rock 0.625" (Nominal) thick and place two pieces at the interface of the Wood Joist contact at the "ledge". DO NOT USE Intumescent in this Hybrid connection. Select a Medium or High Density Fireproofing (CAFCO 400, Fendolite M-II or Grace...
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