Fire Testing

Two Hour Assembly Ul Number

Question: 

We have a local builder wishing to use floor trusses with a 2-hour assembly. I have shown him the 2-hour design on pages 17-27 of the second edition of SBCA’s Metal Plate Connected Wood Truss Handbook. Is this assembly UL approved? If so, what is the design number?

Wood Three Hour Fire Assembly

Question: 

Is it possible to construct an assembly for ceiling between first and second floors using 2x with few layers of gypsum to obtain a 3-hour fire rating?

Fire Rating For Sloped Roof Truss Assemblies

Question: 

A question has come up concerning sloped roof trusses and fire assembly ratings. Some are reluctant to rely on test results from flat (parallel chord) trusses applied to sloped roof trusses. Do you have any information regarding the suitability of the fire rated ceiling assemblies for sloped roof trusses? Does the “minimum depth” requirement of the parallel chord assembly apply to the minimum depth of a sloped roof truss (i.e., heel height?)

Single Membrane Floor Protection - Educational Program

This presentation provides information on the use of gypsum wallboard in single membrane floor protection.

Single Membrane Floor Protection Requirements of 2012 IRC Section R501.3 & 2015 IRC Section R302.13

This Research Report aims to enhance fire performance and fire safety characteristics through the application of a gypsum wallboard membrane.

Advocating with Evidence

A CM in Pennsylvania is taking a proactive approach to dealing with exception four of IRC provision R501.3.

Preserving & Growing Market Share

  • By conducting its own ASTM E119 floor assembly fire testing, SBCA has the data it needs to effectively fight the controversial IRC Section R501.3 code provision and help preserve CMs’ market share.
  • SBCA has drafted template best practice language CMs should consider using in their TDDs, customer contracts and submittal documents to counter the efforts of the lumber industry to shift liability onto end users.
  • Through Framing the American Dream and WorkForce Development efforts, SBCA is actively engaged in helping CMs successfully navigate today’s labor challenges and grow their businesses.