The ceiling of a single-family dwelling in a cold climate should have an R-value of 30. To

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The ceiling of a single-family dwelling in a cold climate should have an R-value of 30. To give such insulation, how thick would a layer of
(a) Polyurethane foam and
(b) Silver has to be?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 17, 2011 02:00 AM

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The ceiling of a single-family dwelling in a cold climate should have an R-value of 30. To

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Fundamentals of Physics

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