Cornerite is a shaped reinforcing unit of expanded metal or wire fabric used to reinforce angles.

Cornerite is a shaped reinforcing unit of expanded metal or wire fabric used to reinforce angles.

• A. True
• B. False
• C. Only for ceilings
• D. Only for floors

Answer: (A)

Cornerite is a pre-formed piece of metal lath bent to a 90-degree corner, used to reinforce the junction where two plaster surfaces meet. Corners are stress points in a plaster system, prone to cracking from movement, settlement, or impact. By embedding a Cornerite at the corner, you create a stiff, continuous edge that ties the adjoining wall planes together and provides a solid anchor for subsequent plaster coats. This reinforcement helps prevent cracking and helps maintain a true, square corner. It’s used on wall corners in lath-and-plaster systems, interior or exterior, not limited to ceilings or floors. So the statement is correct.

Cornerite is a pre-formed piece of metal lath bent to a 90-degree corner, used to reinforce the junction where two plaster surfaces meet. Corners are stress points in a plaster system, prone to cracking from movement, settlement, or impact. By embedding a Cornerite at the corner, you create a stiff, continuous edge that ties the adjoining wall planes together and provides a solid anchor for subsequent plaster coats. This reinforcement helps prevent cracking and helps maintain a true, square corner. It’s used on wall corners in lath-and-plaster systems, interior or exterior, not limited to ceilings or floors. So the statement is correct.