This specification covers either untextured or surface textured non-asbestos fiber-cement flat sheets intended for exterior applications such as claddings, facades, curtain walls, soffits, and so forth. This specification does not apply to asbestos-cement flat sheets, gypsum-based boards or particle boards, discrete non-asbestos fiber-cement interior substrate sheets, fiber-mat reinforced non-asbestos cement interior substrate sheets, or cement-bonded particleboards. Flat sheets covered here are divided into two types according to their intended application, and four grades according to their flexural strengths. Type A sheets are intended for exterior applications subjected to the direct action of sun, rain, or snow, while Type B sheets are intended for exterior applications not subjected to the direct action of sun, rain, or snow. Sheets shall adhere to the following mechanical and physical requirements: flexural strength, density, dimension (nominal length, width, and thickness, squareness, and edge straightness), finish, and color.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

British Standards

International Standards

ASTM Standards

C220 Specification for Flat Asbestos-Cement Sheets

C1154 Terminology for Non-Asbestos Fiber-Reinforced Cement Products

C1177/C1177M Specification for Glass Mat Gypsum Substrate for Use as Sheathing

C1178/C1178M Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel

C1185 Test Methods for Sampling and Testing Non-Asbestos Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards

C1288 Specification for Discrete Non-Asbestos Fiber-Cement Interior Substrate Sheets

C1325 Specification for Non-Asbestos Fiber-Mat Reinforced Cementitious Backer Units

C1396/C1396M Specification for Gypsum Board

D1554 Terminology Relating to Wood-Base Fiber and Particle Panel Materials

E84 Test Method for Surface Burning Characteristics of Building Materials

Keywords

air cured; appearance; autoclaved cured; cellulose fiber; density; edge straightness; exterior application; finish; flexural strength; frost resistance; heat/rain resistance; inspection; length and width tolerance; mechanical properties; minimum equilibrium strength; minimum wet strength; moisture content; moisture movement; nominal length; nominal thickness; nominal width; non-asbestos fiber; packaging; physical properties; polyethylene fiber; polyvinyl alcohol fiber; pressure cured; rejection; sampling; sheet grading; shipping; squareness tolerance; storage; supplementary requirements; supplementary tests; surface burning characteristics; thickness requirements; thickness tolerance; third party certification; tolerance; Type A; Type B; type tests; warm water resistance; water absorption; water tightness; workmanship ;

ICS Code

ICS Number Code 91.100.40 (Products in fibre-reinforced cement)

Citing ASTM Standards

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