Cultural & Civic

We don't apply a universal 70°F/50% RH to everything — that's outdated and often wasteful. We select an ASHRAE Class of Control (AA, A, B, or C, per Applications Handbook Ch. 24) matched to your collection's sensitivity, risk tolerance, and energy budget, which sets both the band and the allowable seasonal drift and short-term fluctuation. Vaults, archives, and incoming-loan galleries can carry tighter requirements than general exhibit space, and we document each as its own design basis the licensed engineer of record on your project can review and seal.

Quiet enough to hit the RC or NC target the room demands — for concert halls and theaters that's frequently NC-15 to NC-25, among the most demanding in any building type. We get there with oversized low-velocity ductwork, generous sound attenuators, displacement or under-seat supply, and equipment on spring isolation and inertia bases to kill structure-borne vibration. We set the criteria with your acoustician early, because acoustics drive duct sizing and routing far more than airflow alone does.

Water damage can equal or exceed fire damage for collections, so we tailor suppression to the space. Over galleries and stacks we typically specify pre-action (often double-interlock dry) sprinkler systems so a single damaged head can't flood the room. For vaults and rare-collection rooms we design clean-agent suppression to NFPA 2001 — inert gas or FK-5-1-12 — which extinguishes without leaving residue or wetting the contents, integrated with detection and the building fire-alarm system.

Yes. Large-volume lobbies and atria need smoke management designed to IBC Section 909 and NFPA 92, and stage houses with fly towers carry proscenium smoke-ventilation and opening-protection requirements under IBC Section 410. We coordinate the mechanical smoke-control sequences with egress, fire alarm, and mass notification to NFPA 101 and 72, and write sequences the commissioning agent and AHJ can test against.

Preservation and ASHRAE 90.1 / IECC compliance pull in opposite directions, so we engineer the trade-off deliberately rather than chasing one and failing the other. Selecting an appropriate Class of Control, recovering energy where it doesn't threaten setpoint stability, and tuning lighting to conservation limits (lux-hour and UV) lets us document a compliant, defensible design. We confirm the AHJ's adopted code edition up front so the energy path clears plan check the first time.