Cement Board

Basics

• A Panel/Board Typically used for Wall Coverings in a manner similar to Gypsum Board (Drywall, Sheetrock, etc)
• Unlike Drywall however, it is inherently moisture and mold/mildew resistant
• "Hardie Panel" and "PermaBASE" are brands that are Genericized Trademarks to an extent

Unknowns

• Fire Rating (If i remember correctly from a commercial site, 2x drywall sheets (maybe with the right backing paper) stacked makes a 1hr Firewall; how does Cement Board Compare?)
• How well it takes Nails / Drywall Anchors etc?

How It's Made

Hardie Panels:

Siding

• 79 lb, $1.25/sf - [1].

Sourcing

• Portland Cement - [2] $10 for 92 lb

Foundation Cover, Bathroom Covering

• Durock - https://www.menards.com/main/building-materials/panel-products/tile-backer-board/durock-reg-1-2-x-3-x-5-cement-board/172954/p-1444445401131.htm
• Portland cement, aggregate and fiberglass mesh - [3]

Internal Links

• Laminated Ferrocement