File:Architect and engineer (1934) (14577939528).jpg

Identifier: architectenginee11935sanf (find matches)
Title: Architect and engineer
Year: 1905 (1900s)
Authors:
Subjects: Architecture Architecture Architecture Building
Publisher: San Francisco : Architect and Engineer, Inc
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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San Jose jurist, early inNovember, in handing down his decision,held that the owner cant be liable for thework of termites which he is unable to ob-serve. With widespread knowledge thattermites are to be found in a given com-munity, it is likely to present a serious ob-stacle to a defense claiming ignorance ofthe hazard created by these wood destroy-ing insects. The owner of a structure, frequently, isnot aware of the presence of termites untilthey have done considerable damage.See Figure 1 and Figure 2. Duringthe months of October and Novembertermites have been swarming in the SanFrancisco metropolitan area in large num-bers. This is the season for mating andthe establishment of new colonies. Swarm-ing from these new colonies, now beingcreated, even under highly favorable condi-tions, cannot be expected before 1937 or1938 at the earhest. Thus their presenceis likely to pass unnoticed until a numeri-cally large colony has developed. Whentermites are found to be present during ^ 52 ►
Text Appearing After Image:
Fig. 1—There was no visible evidence of thepresence of termites until the floor in the fore-ground was punctured by a high heel. swarming it is well to remember that theyare coming from an old infestation. Oncehaving left the original colony the new re-productives have no choice but to mate andestablish a new one or perish as they willnot be permitted to return to their formerabode. The presence of these insects is oftendisclosed when a heavy piece of furniture ismoved into a room. A piano may crashthrough a floor into a basement revealinga greatly weakened structure or as in thecase of the water tower, when subjectedto unusual wind stresses it collapsed. Ter-mites may impair the structural strengthof a member but are skillful in not causingits failure under normal load conditions.It may be that they can feel with their jawsthe stresses present, but when an additionalload is added, the failure occurs. Struc-tures gutted by these pests are a hazard,not only to the owners, but the pub

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