CTI Industry Standards & Code Compliance 3

Question 1

ANSI A118.10 establishes performance requirements for which type of membrane used in tile installations?

Accepted Answer

Load-bearing (bonded) waterproof membranes for thin-set tile

Answer

ANSI A118.10 covers load-bearing (bonded) waterproof membranes used in thin-set tile installations, such as those in showers and wet areas.

Question 2

The TCNA designation 'EJ171' is the industry guideline document specifically addressing which installation requirement?

Accepted Answer

Movement accommodation joints (expansion joints) in tile assemblies

Answer

TCNA EJ171 is the industry's primary guideline document for movement accommodation joints (expansion joints), covering placement, sizing, and material requirements.

Question 3

Which ANSI standard covers the performance requirements for standard (portland cement-based) ceramic tile grouts?

Accepted Answer

ANSI A118.6

Answer

ANSI A118.6 covers standard portland cement-based ceramic tile grouts, including both sanded and unsanded varieties.

Question 4

According to TCNA and industry standards, what is the minimum recommended grout joint width when installing rectified (precision-cut) tile?

Accepted Answer

1/16 inch

Answer

Rectified tiles, because of their precise manufacturing tolerances, can be installed with a minimum 1/16-inch grout joint, though larger joints may be required depending on the application.

Question 5

Per ANSI A108.02, what is the maximum allowable variation in floor substrate flatness for standard tile installations?

Accepted Answer

1/4 inch in 10 feet

Answer

ANSI A108.02 requires floors to be flat within 1/4 inch in 10 feet (with no more than 1/16 inch in 12 inches) for standard tile installations.

(CTI) Certified Tile Installer Practice Test

(CTI) Certified Tile Installer Practice Test

CTI Industry Standards & Code Compliance 3