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.

Transcribed Image Text:

Temperature (°F) 80° 70⁰ 60⁰ 50° Air 40° at 30⁰ 20° 10° 0° -Gypsum wallboard Fiberglass between studs 012 2 3 4 5 Distance through wall (inches) inside room 72°F Sheathing Siding Air outside at 0°F 6 7