If properly constructed, firewalls between apartment or townhouse units can provide protection against
flame spread for up to _____.
a. 30 minutes
b. 1 hour
c. 2 hours
d. 4 ho
Question 2
A masonry veneer wall must be separated from its backup by an airspace of at least _____.
a. 1/2 inch
b. 1 inch
c. 1-1/2 inches
d. 2 inches