Ul Rated Ceiling Assemblies

Determine the existing or planned building elements including structural.

Ul rated ceiling assemblies. In fire resistance rated construction building codes specify that floor. Find the right fire rated assemblies and design details drawings for your architectural plans. In order to remain within the design criteria the assembly must be constructed as specified in the published design. Weyerhaeuser had long been the lone i joist manufacture specifically listed in ul fire assemblies.

Numbering system for fire rated assemblies types of protection membrane protection direct applied protection unprotected groups of construction 000 099 100 199 200 299 300 399 400 499 500 599 600 699. To purchase a copy of the ul directory. Ul assembly approved ceiling tile suspension maximum fix. There are three potential types of acceptable modifications as follows.

U rated assemblies with parallel chord trusses in floor ceiling applications may also be used for roof ceiling applications as long as the minimum depth at end bearing is maintained. Establish the hourly rating needed to meet code requirements. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system incorporating the product or any given piece of the product.

To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. No ceiling or suspension system product alone constitutes a fire rated assembly. It includes the flexibility to search by product name master format number related installation code section keywords and other terms.

This table is a guide. Selecting the right ul fire rated assembly. If a construction element is identified as optional or may be provided it is not mandatory and doesn t need to be included in the construction. Fire rated assemblies are tested and certified in their entirety.

You can use only the specific type size and minimum thickness of fire guard ceilings or suspension system identified in each assembly. This next generation search engine covers a wide range of construction materials equipment and fire resistance rated assemblies and systems. Maximum sizes ceiling area suspension ceiling designs support fi re rated ceiling assemblies. Estimate materials and find usg equivalents for your building projects.

Size duct area per assembly construction design rating tiles panels panel system ceiling area 100 sq. Variations from the published specifications should be considered as not being investigated by ul. See ul fire resistance directory for complete design details. Ul rated roof ceiling assemblies.

These designs are identified in the ul fire resistance directory which is updated yearly and.