Outside exhaust fan at top of duct chase. Upper ventilation with motor operated louver controlled by a thermostat.

Gas detection sensor installed (cover removed) in duct chase of continuous running exhaust fan of low level ventilation system.

Opened active door exposes security alarm contact controlled by secure/access panel in weatherproof box.

Inactive door has coordinating device with blocking arm lifted up out of way so active door can close upon release fusible link.

Pictured: U.S. Army Mustard Gas Thaw “Box” with ton container being raised on a leaker handling station. Drop down platform grating, floor plate and sump all stainless. Door lever handle breaks seal of negative pressure within room. Crane hoist by David Round.

Custom Features/Components:
Haz-Safe Buildings, since our introduction in 1990, has introduced more sophisticated features, components, and options beyond just the required fire-rated construction and explosion proof electrical components. Shown are technical product advances in our continuous evolution in engineering by design.

Some have U.S. Patent numbers (see below) which proves our point. On the other pages are other innovative ideas such as Protected Cradle and Crown™ construction, baked-on porcelain enameled interior finishes, dual ventilation and alarm systems, single or double sloped sump floors, built-in crane hoist systems, aesthetically pleasing installed overhead rollup doors*, and a Modular Building System*™.

All components are built and installed with a total commitment to quality. When selecting Haz-Safe Buildings, you can expect the best and most experienced resources to provide you with a quality structure and components.

Bottom hinged, resetable, magnetic released, shock absorbing, cable tethered, insulated (R-9), FM tested and approved 4´x8´ explosion relief panel.

Baked-on acid-resistant porcelain enamel interior finish on 22 gauge sheet steel (15-year warranty) on fire rated gypsum.

Air intake or gravity vent with fusible link release folding blade fire damper and bidirectional blast valve (gold color).

Outside serviced explosion proof liquid spill alarm float detector, drain pipe, shut off valve and drain pit wall.

Inside: Drop down shutter (gray box) fire rates explosion relief panel’s opening when released by fusible link. Steel security screen resists intruder entry and prevents objects from being propelled out during explosion. Panels have a magnetic alarm contact connected to security alarm system.

Outside: Open bottom of left blast shaft allows rain and snow to pass through and shows closed explosion relief panel. Relief panel on right in open position fills bottom of shaft, forcing blast effects out open top of shaft, allowing building to be placed near other facilities. Shafts are blast rated.

Ceiling and wall hung shelving allows easy removal of elevated flooring during spill cleanups.

Elevated flooring removed to see sump utilized as a “raised floor” for piping, etc. Window is fire rated.

Special floor supports for client machinery and tools over a sloped sump floor. Wall-to-wall explosion relief panels per N.F.P.A. 68.

Tanks contain Ansul’s Inergen fire suppression agent which people can breathe in and see through while exiting room.

Inside galvanized grate removed exposing low end of single sloped sump floor and drain pit with red bulb float detector.

Double-sloped sump floors drain toward a trench sloped toward a drain/alarm pit at end of trench.

Stan Phillips, V.P. Manufacturing, demonstrates strength of tubular steel building skeleton using crane hoist and pallet grab for stacking pallet loads or tote tanks. Takes advantage of vertical space for reducing building size.

Crane hoist and drum dolly make work safer and more productive. Chain link fence and sump walls divide bays serviced by single crane hoist, exhaust fan, fire suppression systems, heat and A/C.