UL PRODUCT CATEGORY

Gypsum Board, CKNX


Guide Information for Fire-resistance Ratings

703.4.2705.6717.2.125062603.4

GENERAL

This category covers gypsum board investigated for use in fire-resistance designs as detailed in Fire-resistance Ratings - ANSI/UL 263 (BXUV).

Gypsum board represents a family of products that includes gypsum board ceiling board, water-resistant gypsum backing board, gypsum backing board, gypsum coreboard, gypsum shaft-liner board, predecorated gypsum board, gypsum sheathing, exterior gypsum soffit board, gypsum base for veneer plaster, gypsum lath, and gypsum formboard.

Gypsum board consists of a gypsum core reinforced with mineral fibers and surfaced on both sides with paper or similar material bonded to the core. It can be applied to steel or wood framing, or to furring attached to steel or wood framing or concrete building components to form walls, ceilings or soffits. Gypsum board can also be applied to columns or beams as specified in the individual designs.

PRODUCT IDENTITY

The following product identity appears on the product:

    Gypsum Board

RELATED PRODUCTS

For information on related products, see Fire-resistance Ratings - ANSI/UL 263 (BXUV).

For information on surface-burning characteristics, see Gypsum Board (BWFR).

ADDITIONAL INFORMATION

For additional information, see Fire-resistance Ratings (BXRH).

REQUIREMENTS

The basic standard used to investigate products in this category is ANSI/UL 263, "Fire Tests of Building Construction and Materials."

UL MARK

The Certification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic identifier(s), and a file number.

Additional Certification Markings

Products covered under this category are additionally marked with the following information:

AS TO FIRE RESISTANCE
DESIGN NO(S). ____
SEE UL ONLINE CERTIFICATIONS DIRECTORY

or

AS TO FIRE RESISTANCE
SEE UL ONLINE CERTIFICATIONS DIRECTORY

Alternate UL Mark

The Classification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Classification and Follow-Up Service. The Classification Mark for these products includes the UL symbol, the word "CLASSIFIED" above the UL symbol (as illustrated in the Introduction of this Directory), and the following additional information:

GYPSUM BOARD
FIRE RESISTANCE CLASSIFICATION
DESIGN NO(S). ____
SEE UL FIRE RESISTANCE DIRECTORY
Issue No.

or

GYPSUM BOARD
FIRE RESISTANCE CLASSIFICATION
SEE UL FIRE RESISTANCE DIRECTORY
Issue No.

* * * * * * * * * * * * * * * * * * * * * * * * *

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Last Updated on 2013-05-16
CKNX.GuideInfo CKNX Active 20130516 20070425

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