Cost effective building techniques are accomplished by using what two factors?

• A. Height and mass
• B. Math (maximizing engineering principles) and Cost (minimizing material use)
• C. Ventilation and insulation
• D. Fire resistance and aesthetics

Answer: (B)

Cost-effective building techniques come from designing for performance while using the least material needed. The two factors at play are applying solid engineering analysis to optimize the structure and, at the same time, minimizing material use.

Using math and engineering principles means carefully calculating loads, stresses, deflections, and safety factors to find the most efficient shape, size, and connections. It prevents over-design and lets you exploit structural paths that carry forces with the least waste, so the building meets requirements without excess material.

Minimizing material use focuses on selecting materials and detailing in ways that achieve the required performance with as little material as possible, which lowers material costs and reduces construction effort, without compromising safety or function.

Together, these ideas drive cost effectiveness by balancing reliable performance with economical material quantities. Other aspects like ventilation/insulation, height/mass, or fire resistance/aesthetics address important objectives, but they don’t inherently deliver the same fundamental pairing of engineering-driven efficiency and material economy that this combination emphasizes.