Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada). U Fire Resistance Ratings ANSI/UL "Reprinted from the Online Certifications Directory with permission Save this PDF as: Download "Design No. See General Information for Fire-resistance Ratings - ANSI/UL Design No. U February 19, Nonbearing Wall Ratings — 1, 2, 3 or.
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Fire Testing. UL® Listed Wall Assemblies. Connections No. of layers and thickness of gypsum board. UL U UL V UL V UL V UL V 1. Download. Note: You need Acrobat Reader to be able to read the pdf spicesinlaris.ga can download it here: UL Design – U (1, 2, 3 or 4 hour) · UL Design – U . reports) as a free download in the form of an Adobe Acrobat file. Details of UL and ULC listings for fire rated floor, wall and truss assemblies can Sound. Transmission. Class. UL. U a) SA b) SA
As applied to elements of buildings, the fire-resistance rating classifies the ability of an assembly 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. Fire-rated assemblies are tested and certified in their entirety.
The Standards Council of Canada recognizes ULC and UL as accredited testing and certification organizations for certification of materials and systems to Canadian standards. Each section is arranged sequentially according to fire ratings, the criterion that most often governs selection. Each entry within a section contains a reference to the source for more information within the Architectural Reference Library binder.
Pages Partitions Steel-framed, including non-loadbearing, loadbearing and chase walls; wood-framed, including non-loadbearing, loadbearing and chase walls; area separation walls; shaft walls; and masonry walls.
Includes gypsum base and veneer finishes, gypsum drywall, cement board and conventional lath and plaster. Column, beam, through-penetration walls and floors, and joists. Basic methods of protecting columns and beams with gypsum base and veneer finishes, mineral fireproofing, and gypsum drywall. Exterior Walls Steel-framed, including loadbearing and non-loadbearing; and wood-framed, including loadbearing.
Includes exterior curtain wall assemblies. U BXUV. Authorities Having Jurisdiction should be consulted before construction. Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements.
The published information cannot always address every construction nuance encountered in the field. When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the product manufacturer noted for the design.
Users of fire resistance assemblies are advised to consult the general Guide Information for each product category and each group of assemblies. The Guide Information includes specifics concerning alternate materials and alternate methods of construction.
Only products which bear UL's Mark are considered Certified. OC max. Channel shaped, attached to floor and ceiling with fasteners 24 in. Steel Studs Channel shaped, fabricated from min 25 MSG corrosion protected steel, min depth as indicated under Item 5, spaced a max of 24 in.
Studs friction fit into floor and ceiling runners.
For direct attachment of gypsum board only. OC, fabricated from min in. Spaced 24 in. Attached to studs with flat head selfdrilling tapping screws with a min. When used, gypsum panels attached over OSB or plywood panels and fastener lengths for gypsum panels increased by min. Min nom thickness as indicated under Item 5. Placed in stud cavities, any min.
Vertical joints centered over studs and staggered one stud cavity on opposite sides of studs. Vertical joints in adjacent layers multilayer systems staggered one stud cavity.
RSIC SOUND TEST ASSEMBLIES
Horizontal joints need not be backed by steel framing. Horizontal edge joints and horizontal butt joints on opposite sides of studs need not be staggered. Horizontal edge joints and horizontal butt joints in adjacent layers multilayer systems staggered a min of 12 in. Secured as described in Item 6.
Vertical joints centered over studs and staggered min 1 stud cavity on opposite sides of studs. OC at perimeter and 12 in. OC in the field.
Vertical Application The gypsum board is to be installed on each side of the studs with 1 in. OC starting 4 in.
OC starting 6 in. Gypsum boards are to be secured to the top and bottom track with screws spaced 8 in. Horizontal joints need not be backed by steel framing. Horizontal edge joints and horizontal butt joints on opposite sides of studs need not be staggered.
Horizontal edge joints and horizontal butt joints in adjacent layers multilayer systems staggered a min of 12 in. Secured as described in Item 6. Vertical joints centered over studs and staggered min 1 stud cavity on opposite sides of studs.
OC at perimeter and 12 in. OC in the field. Vertical Application The gypsum board is to be installed on each side of the studs with 1 in. OC starting 4 in. OC starting 6 in.
Gypsum boards are to be secured to the top and bottom track with screws spaced 8 in. Fasteners shall not penetrate through both the stud and the track at the same time.
Vertical joints are to be centered over studs and staggered one stud cavity on opposite sides of studs. Horizontal Application The gypsum board is to be installed on each side of the studs with 1 in. For use with Items 1 and 2 only. OC along vertical and bottom edges and 12 in.
Item 2E No. Vertical joints centered over 20 MSG steel studs and staggered min 1 stud cavity on opposite sides of studs. For Joint Compound see Item 5. Steel stud minimum depth shall be as indicated in Item 5.
Lead batten strips, min 2 in. Compression fitted or adhered over the screw heads. Lead batten strips and discs to have a purity of Horizontal edge joints and horizontal butt joints in adjacent layers multilayer systems need not be staggered. Items 2 through 2O No.
Single layer systems: 1 in. OC when panels are applied horizontally, or 8 in. OC in the field when panels are applied vertically. Two layer systems: First layer 1 in. OC with screws offset 8 in. Screws offset min 6 in. Four layer systems: First layer 1 in.This approach purportedly inhibits the adverse effects of vermiculite expansion on the panel, as explained at col. Particularly desirable polynaphthalenesulfonates include sodium and calcium naphthalenesulfonate.
If the building assembly deflects away from the fire, the panel on the fire side is placed into compression as it deforms into a concave surface. The gyp sum- containing slurry can optionally contain a phosphate-containing component, for example, sodium trimetaphosphate. Item 2E No.
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