CBD Material Selection & Aesthetics 2 — Questions and Answers
Question 1: Which porcelain tile finish is MOST slip-resistant for wet bathroom floors?
- Polished
- Matte/textured (Correct answer)
- Glossy
- Lappato
Correct answer: Matte/textured
Matte or textured porcelain surfaces have higher coefficient of friction ratings, making them safer on wet bathroom floors than polished or glossy finishes.
Question 2: When selecting grout color for a large-format tile installation, choosing a grout that closely matches the tile color will PRIMARILY:
- Make grout joints more visible
- Create a seamless, continuous appearance (Correct answer)
- Increase slip resistance
- Reduce installation time
Correct answer: Create a seamless, continuous appearance
Matching grout color to the tile creates a monolithic, unified look that minimizes the visual interruption of grout lines.
Question 3: Which stone is the MOST porous and therefore requires the most rigorous sealing in bathroom applications?
- Granite
- Quartzite
- Travertine (Correct answer)
- Slate
Correct answer: Travertine
Travertine is a highly porous limestone with natural voids that absorb water and stains readily, requiring frequent sealing in wet environments.
Question 4: A client wants a vanity countertop material that is non-porous, heat-resistant, and mimics the look of marble. The BEST recommendation is:
- Cultured marble
- Engineered quartz (Correct answer)
- Carrara marble
- Solid surface
Correct answer: Engineered quartz
Engineered quartz is non-porous, highly heat-resistant, and available in patterns that convincingly replicate marble veining without the maintenance demands.
Question 5: The term 'book-matched' in stone tile installation refers to:
- Alternating tile sizes in a pattern
- Mirroring adjacent stone slabs to create a symmetrical veining pattern (Correct answer)
- Matching grout joints precisely
- Installing tiles in a herringbone layout
Correct answer: Mirroring adjacent stone slabs to create a symmetrical veining pattern
Book-matching involves opening consecutive stone slabs like a book so their mirrored veining patterns create a dramatic, symmetrical focal point.
Question 6: Which paint finish is MOST appropriate for bathroom walls due to its moisture resistance and easy cleanability?
- Flat/matte
- Eggshell
- Satin or semi-gloss (Correct answer)
- Chalk paint
Correct answer: Satin or semi-gloss
Satin and semi-gloss finishes create a harder, more washable surface that resists moisture and mildew better than flat or eggshell finishes in high-humidity bathrooms.
Question 7: When specifying glass tile for a shower surround, the designer should MOST importantly consider:
- The tile's water absorption rate
- The need for a white or light-colored setting bed mortar (Correct answer)
- The tile's scratch resistance rating
- The grout joint width minimum of 1 inch
Correct answer: The need for a white or light-colored setting bed mortar
Glass tiles are translucent, so the color of the setting mortar shows through and affects the final appearance; a white or matched setting bed is typically specified.
CBD Material Selection & Aesthetics 2
Which porcelain tile finish is MOST slip-resistant for wet bathroom floors?