CTI Industry Standards & Code Compliance 2

Question 1

Per TCNA guidelines, expansion joints (movement joints) in tile installations must be filled with which material?

Accepted Answer

Flexible sealant complying with ASTM C920

Answer

TCNA guidelines require movement joints to be filled with a flexible sealant complying with ASTM C920 to accommodate substrate movement without cracking.

Question 2

Which ANSI standard specifically governs the installation of ceramic tile with dry-set portland cement mortar or latex-portland cement mortar?

Accepted Answer

ANSI A108.5

Answer

ANSI A108.5 covers the installation of ceramic tile using dry-set portland cement mortar or latex-portland cement mortar (thinset methods).

Question 3

The Americans with Disabilities Act (ADA) specifies that the maximum running slope for accessible tile floor surfaces must not exceed which ratio?

Accepted Answer

1:48 (approximately 2%)

Answer

The ADA requires accessible floor surfaces to have a maximum running slope of 1:48 (approximately 2%) to ensure wheelchair accessibility.

Question 4

ISO 13006 classifies ceramic tiles primarily based on which two characteristics?

Accepted Answer

Water absorption rate and manufacturing method

Answer

ISO 13006 classifies ceramic tiles by water absorption rate (Groups I, IIa, IIb, III) and manufacturing method (extruded or dry-pressed), which determines their appropriate applications.

Question 5

According to TCNA EJ171 guidelines, how frequently should movement joints be placed in interior floor tile installations?

Accepted Answer

Every 8 to 12 feet in each direction

Answer

TCNA EJ171 requires movement joints to be placed every 8 to 12 feet in each direction for interior tile floors to accommodate thermal and structural movement.

(CTI) Certified Tile Installer Practice Test

(CTI) Certified Tile Installer Practice Test

CTI Industry Standards & Code Compliance 2