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PhysicsQ&A LibraryFor the outside walls of a home, two layers are often combined, such as a layer of wood and a layer of sheet rock (plaster). The rate of heat transfer becomes: P = Δ Q/second = A Δ T/ (Rw+Rsr) . What is the advantage of using combined 2-cm layers of wood and plaster versus using just a 4-cm layer of wood for home insulation. Assume a wall area A = 15 x 10 -4 cm2, and an indoor outdoor temperature difference of 15 degrees C.Start your trial now! First week only $4.99!*arrow_forward*

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For the outside walls of a home, two layers are often combined, such as a layer of wood and a layer of sheet rock (plaster). The rate of heat transfer becomes: P = Δ Q/second = A Δ T/ (R_{w}+R_{sr}) .

What is the advantage of using combined 2-cm layers of wood and plaster versus using just a 4-cm layer of wood for home insulation. Assume a wall area A = 15 x 10 ^{-4 }cm^{2, }and an indoor outdoor temperature difference of 15 degrees C.

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