Which of the following insulating materials is available in the form of rigid boards?
A)Extruded polystyrene
B)Fiberglass
C)Insulating concrete
D)Rock wool
E)None of the above

Question

Quizplus · Accepted Answer

Extruded polystyrene is a commonly used insulating material that can be purchased in rigid board form, making it easy to install and handle. Fiberglass and rock wool are typically sold in loose-fill or batt forms, while insulating concrete is not a board-type insulation material.

Which of the Following Insulating Materials Is Available in the Form