San Francisco : Architect and Engineer, Inc · leaf 638
(A) Kraf, Paper(0) Asphallum) Croisfd SUnl Fibres The monolithic con-crete floor under thisSisalkraft is clean andhard. All the dirt is re-moved when the paperis rolled up. Sisalkraft is composedof crossed layers ofsisal fibres, imbeddedin asphaltum, and cov-ered by layers of heavykraft paper. Made…
Architecture · Building
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