CBD Material Selection & Aesthetics 5

Question 1

The coefficient of friction (COF) for floor tile in a wet bathroom area should be a MINIMUM of:

Accepted Answer

0.42

Answer

The Americans with Disabilities Act (ADA) recommends a minimum static COF of 0.6 for accessible routes, while ANSI standards set 0.42 as the wet slip-resistance minimum for floor tile.

Question 2

Which aesthetic style is BEST characterized by the use of natural materials, organic shapes, warm neutrals, and handcrafted textures in bathroom design?

Accepted Answer

Biophilic/Organic Modern

Answer

Biophilic or organic modern design emphasizes connection to nature through natural materials, organic forms, earthy tones, and handcrafted textures.

Question 3

When using large-format tiles (24x24 or larger) on a floor, the installer MUST use:

Accepted Answer

Large-and-heavy tile (LHT) mortar with back-buttering technique

Answer

Large-and-heavy tile (LHT) mortars provide the necessary coverage and support to prevent lippage and cracking under large-format tiles; back-buttering ensures full contact.

Question 4

A designer wants to visually expand a small bathroom. Which tile installation pattern BEST achieves this goal?

Accepted Answer

Diagonal (45-degree) pattern

Answer

Installing tiles on a 45-degree diagonal draws the eye outward toward the corners and creates a sense of expanded floor area in small spaces.

Question 5

Which of the following is a characteristic of honed stone finish compared to polished stone?

Accepted Answer

Greater resistance to etching visibility

Answer

Honed stone has a matte surface that better camouflages etching and water spots compared to polished stone, where etching is very visible due to the reflective surface.

(CBD) Certified Bathroom Designer Practice Test

(CBD) Certified Bathroom Designer Practice Test

CBD Material Selection & Aesthetics 5