2 Hour Ul Roof Assembly

However it is identical to ul l538 with the exception that l538 uses i joists instead of wood trusses.

2 hour ul roof assembly. Breakaway clip facings and height of wall differ between ul design u373 and whi gp wa 120 04. Sound tested with 2 x 4 stud wall with 1 2 12 7 mm toughrock fireguard c gypsum wallboard or densarmor plus fireguard c panels each side of assembly and 3 1 2 89 mm fiberglass insulation in stud space both sides. Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. Certification database ul product iq.

Steel roof deck unclassified noncomposite design vented or nonvented units 9 16 in 15 16 in 1 5 16 in 1 1 2 or 2 in. This two hour assembly does not have a ul number. The ul certification mark on fire resistant products systems and assemblies is relied on by code enforcement officials and buyers to provide confidence that products and systems meet regulatory and market requirements. Refer to our roof ceiling assembly documents which includes ul fire rated roof assemblies for easy guidance through the assembly of a roof or ceiling on your next project.

Ul design u419 1 2 3 or 4 hour wall assembly installation instructions. For direct attachment of. Studs to be cut 3 4 in less than the assembly height and installed with a 1 2 in. Deep spaced a max of 24 in.

With 1 2 wood structural panels with. When vented or nonvented 9 16 in. Deep galv units are used the restrained assembly and beam ratings shall not exceed 1 1 2 h. Both of these assemblies were developed using the component additive method cam which adds up the known fire resistance of each of the assembly elements to determine the resistance of the.

6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test. Deep galv units nom 24 to 36 in. Channel shaped studs 3 5 8 in. Gap between the end of the stud and track at the bottom of the wall.

It is a key differentiator for products within the exterior wall assembly market. A secure online source for increased visibility into your ul project files product information documents samples and services. Helpful documents and resources for usg s roof assemblies can be found on this page. These listings are short summaries to serve as a.

The ul evaluation report an additional.