San Francisco : Architect and Engineer, Inc · leaf 39
amount of salts into the wood as agreater or lesser amount fails to give thedesired results. Properties of this lumber other than its fire-resisting qualities were also investigated. Itsworkability was found to be equal in everyway to that of untreated lumber. Its abilityto take paint and varnish… … FIRE TESTS OF VERTICAL PANELS OF RED OAK—NOT TREATEDEXPOSED FACE WHEN WITHDRAWN FROM FURNACE ber, and others of untreated lumber, weresubjected to a roaring inferno in gas-firedfurnaces especially designed for such work.Through windows the behavior under fire ofthe fireproofed and the untreated…
Architecture · Building
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