One disadvantage to internally applied thermal insulation to external walls is
A) It cannot incorporate a vapour barrier
B) It reduces the size of the room
C) It can reduce the fire resistance of the wall
D) It can reduce the compressive strength of the wall
E) It can increase the slenderness ratio of the wall

Question

Quizplus · Accepted Answer

Internally applied thermal insulation reduces the usable interior space, as it adds thickness to the walls inside the room.

One Disadvantage to Internally Applied Thermal Insulation to External Walls