CID Textiles and Finishes Specification Flashcards

Which hardwood species is classified in the highest Janka hardness category, making it most appropriate for high-traffic commercial wood flooring?

Answer: Brazilian cherry (Jatoba)

Brazilian cherry (Jatoba) has one of the highest Janka hardness ratings among flooring species, making it highly resistant to denting and wear in high-traffic environments.

In glass specification for interior partitions, what does 'tempered glass' provide compared to standard annealed glass?

Answer: Up to 4–5 times greater impact strength and safe breakage into small, blunt fragments

Tempered glass is heat-treated to be 4–5 times stronger than annealed glass and, when broken, shatters into small, rounded fragments that reduce injury risk.

Which ASTM standard governs the testing of interior paint for scrubability and washability to evaluate durability for commercial wall applications?

Answer: ASTM D2486

ASTM D2486 is the standard test for scrub resistance of interior paints, measuring how many scrubbing cycles a painted surface can endure before showing visible wear.

What does 'porcelain tile' designation indicate compared to ceramic tile in terms of technical performance?

Answer: Porcelain tile has a water absorption rate of 0.5% or less, making it harder, denser, and more frost-resistant

Porcelain tile is fired at higher temperatures, achieving a water absorption rate of 0.5% or less per ANSI standards, making it denser, harder, and suitable for exterior and wet environments.

Which window film specification property is most important when selecting solar control film for a south-facing commercial office to reduce heat gain?

Answer: Solar heat gain coefficient (SHGC)

Solar heat gain coefficient (SHGC) measures how much solar radiation passes through the glazing system; a lower SHGC indicates better reduction of solar heat gain.

What is the primary specification consideration when selecting LVT (luxury vinyl tile) for a commercial interior where moisture from below-grade concrete is a concern?

Answer: The product's moisture barrier and warranty for below-grade installation

For below-grade concrete installations, LVT must be specified with a moisture barrier or be rated for below-grade use, with a manufacturer warranty covering moisture-related failures.