Materials, Finishes, and Specifications Flashcards

What does STC (Sound Transmission Class) measure in wall assemblies?

Answer: Airborne sound isolation between spaces

STC rates how well a wall, floor, or ceiling assembly blocks airborne sound transmission; higher STC values indicate better sound isolation.

Which material standard applies to hardwood veneer plywood used in casework and millwork?

Answer: HPVA HP-1 (Hardwood Plywood and Veneer Association)

HPVA HP-1 is the industry standard for hardwood and decorative plywood, covering veneer grades, core types, and tolerances used in architectural millwork.

What is the primary difference between porcelain and ceramic tile from a specification standpoint?

Answer: Porcelain has lower water absorption (≤0.5%) and greater density

Porcelain tile is fired at higher temperatures, producing a denser body with water absorption of ≤0.5%, making it more durable and suitable for exterior or wet applications.

In a finish schedule, what does 'PT-1' typically represent?

Answer: A paint type and color designation

In a finish schedule, designations like PT-1 identify specific paint specifications including sheen level, color, and manufacturer for application to defined surfaces.

Which resilient flooring type consists of a photographic layer protected by a clear urethane wear layer?

Answer: Luxury Vinyl Tile/Plank (LVT/LVP)

LVT/LVP uses a photographic film layer under a urethane wear layer to simulate wood, stone, or tile patterns with high dimensional stability.

What does 'FSC certified' mean when specifying wood products?

Answer: The wood comes from responsibly managed forests certified by the Forest Stewardship Council

FSC (Forest Stewardship Council) certification verifies that wood products were sourced from forests managed to environmental and social standards, supporting LEED credits.