Items related to Rivington's notes on building construction Volume...
Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...height and at all temperatures until the dew-point is reached. Sources of Moisture in Buildings.--In practice, moisture in buildings is derived from one or more of the four different sources classified and briefly discussed in the following notes. Water of Construction.--This consists of moisture in the materials when delivered, absorbed during exposure on the site, or added to them for structural purposes. As a general rule, such moisture may be regarded as being of temporary character, and capable of being removed by evaporation within reasonable limits of time. Water of Capillarity.--This is always more or less evident, being drawn up from the soil by capillary action, unless intercepted by an impenetrable barrier. The interposition of an efficient damp course between the soil and the foundations, or between the latter and the superstructure, is the best means of protection against water of capillarity. In cases where the structure is in contact with the soil above foundation level, a vertical damp course is necessary. Water of Condensation.--Resulting from the condensation of vapour from the air, either in the pores of structural materials or upon their outer surface, water of condensation is sometimes a source of considerable trouble. It is less evident in buildings where the construction is homogeneous throughout, or formed of materials whose physical properties are approximately equivalent, than in buildings embodying hard and dense materials in contact with others of soft and porous character. If the atmospheric conditions are such as to encourage the formation of water of condensation to an important extent, moisture may tend to accumulate in the interior of walls, however carefully they may be protected by horizontal and vertical damp courses, and...
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- PublisherRarebooksclub.com
- Publication date2012
- ISBN 10 1130247627
- ISBN 13 9781130247626
- BindingPaperback
- LanguageEnglish
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