Redwood Crib Wall Stops Paint Warehouse Fire

REDVOOD crib wall is constructed by laying one 2x6 fat on top of anodret (face to face) until the wall reaches the desired height.

This provides a solid, tight Redwood wall, six inches thick, and of great fire tesistance.

For small structures 2x4ts are used. Sometimes the lumber is run vemically instead of being laid hotizontally.

The material should be surfaced four sideg and spiked together, to be entirely tight jointed. In the horizontal construction the weight of the wall keeps the courses pressed tighdy togethet and prevents cracks.

Redwood crib construction has been used extensively for walls, partitions and fire stops in warehouses and industrid buildings.

It is practical and economical for garege partitions or walls, bunker.s, grain elevators, storrge bins, piets and even houses. It forms an ideal fire resisting wall to enclose passerrger or freight elevator shefts.

As "laminated fooring" it is well known in highway bridges, wharves, and floors for industrial use.

"Recentlg fire occurred in a warehouse used for the stocki,ng gl paint, oil, turpentine, alcoh.ol and other ,inflammable materials. The fire uns not discoaered until it had been burning for about three hours and had gained considerable headzuay. It zsas rated by the Fire Chief as the hotlest fire he hod encountered, and reqa"ired four hours of hard fighting before it uns brought under control.

The building ritas ol Douglas Fir, zahile the adjoining building was protected by a Redwood Crib WaIl of 2x4's. Being of the older tfie of construction it lached some of the ltese# do! fire zuall requisites because the joists Proiected through and beyond the uoll and because the z.s,all was built to the roof line only, insteail of ertending above and preztenting the flames lrom jamtting over. Yet, even with these adrnitted defects this wall zaithstood. the terrific heat zuhich tlas accentuated by drums stored ogainst the zuall, erploding and saturating it zaith inflammable materials. Had it not been for this woll stopping the fire, not only the builtting adjacent zuould haae been lost, but also the entire block. As it was, the adioining building saffered, practically no d,amage." '

From "Redwood Crib Constructiof' (C alil ornia Re dano o d A sso ciation)