Liquid-applied vs peel-and-stick flashing at window rough openings: where each wins, the universals both share, and how to draw the detail.
IBC §1207 requires STC 50 / FSTC 45 for unit-separating walls and IIC 50 / 45 for floors. Why senior teams design to STC 55-60, with assembly examples.
Satin vs. eggshell for commercial corridors, settled. The full sheen ladder mapped to walls, trim, and ceilings for your finish schedule.
Control joints vs expansion (isolation) joints in slab on grade: ACI 360 spacing rules of thumb, sawcut depth and timing, and why interior slabs rarely need expansion joints.
