According to the National Building Code of Canada (NBCC) heavy timber construction avoids:
A) having open crawl spaces.
B) using flame-retardant materials.
C) using noncombustible materials.
D) concealed spaces under floors and roofs.

Question

Quizplus · Accepted Answer

Heavy timber construction is designed to avoid concealed spaces under floors and roofs to reduce the risk of fire spreading undetected.

According to the National Building Code of Canada (NBCC) Heavy