Quiz . 13 February 2008                     
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    QUIZ

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    Quizzical Pursuit
    —The Architecture Puzzler

    Created by Dave Guadagni

     

    Architecture Puzzler #368

    The permeability of materials to water vapor is measured in perms. Materials with higher perm ratings are more breathable than those with lower perm ratings. These ratings vary by material and density. Materials used as vapor barriers have low perm ratings. True or false: a material with a perm rating greater than 1 is considered a "breathable" material?


     

    Question from Last Week:
    Architecture Puzzler #367

    In trying to understand the value of a piece of property, what is the "Annuity Method"?  

    Answer to Puzzler #367


     

    Come back next week for the answer to Architecture Puzzler #368!
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    http://www.ArchitectureWeek.com/quiz.html


     

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    Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects

    Quizzical Pursuit is Copyright 2008, Dave Guadagni.

    AW


    ArchWeek Image

    The multilayer concrete exterior walls of the Canadian War Museum, in Ottawa, Canada, were engineered to resist in-wall condensation when the outside temperature plummets.
    Photo: Tom Arban

     
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