Question: By measuring slopes in the figure below, find the temperature change in degrees per inch for the following materials. (a) Gypsum wallboard (b) Fiberglass insulation

By measuring slopes in the figure below, find the temperature change in degrees per inch for the following materials.
(a) Gypsum wallboard
(b) Fiberglass insulation
(c) Wood sheathing
(d) Which of the materials in (a)-(c) is the best insulator? the poorest? Explain.

Temperature (F) 80 70 60 50 Air 40 at 30 20 10

Temperature (F) 80 70 60 50 Air 40 at 30 20 10 0 -Gypsum wallboard Fiberglass between studs 012 2 3 4 5 Distance through wall (inches) inside room 72F Sheathing Siding Air outside at 0F 6 7

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