Material Selection Flashcards

When reviewing a submittal for a replacement material, what is the main purpose of checking it against the specification?

Answer: To verify the product meets the specified performance, standards, and compatibility requirements

Submittal review confirms that the proposed product matches the specified performance criteria, standards, and conditions before installation.

Which insulation material keeps its R-value best when exposed to moisture below grade?

Answer: Extruded polystyrene (XPS)

XPS is a closed-cell rigid foam with very low water absorption, so it suits below-grade and wet applications.

What is a key disadvantage of choosing a proprietary, single-source material for a building component?

Answer: Future replacement parts may be costly or unavailable if the manufacturer discontinues it

Single-source products leave the facility dependent on one manufacturer, which risks high prices and discontinued parts.

Which glazing product is best for reducing solar heat gain while keeping good visible light transmission?

Answer: Spectrally selective low-E insulated glass

Spectrally selective low-E coatings block infrared heat while letting most visible light pass through.

Where are safety glazing materials such as tempered or laminated glass required by code?

Answer: Hazardous locations such as doors, sidelights, and glass near walking surfaces

Building codes require safety glazing in hazardous locations where people may impact the glass, such as doors and adjacent panels.

Why are concrete pavers often chosen over cast-in-place concrete for plaza walkways in maintenance-focused selections?

Answer: Damaged sections can be lifted and replaced individually without visible patching

Individual pavers can be removed and reset for repairs or utility access, which keeps a uniform appearance.

Which carpet construction is generally most resistant to crushing in high-traffic commercial corridors?

Answer: Low, dense level-loop

Low-profile, high-density level-loop carpet resists matting and crushing under heavy foot traffic.