Pro Prac
Pro Prac
Pro Prac
IV
TY P ES O F C O N S TR U C TIO N
SECTION 403.
1.
of Types II, III and IV Construction shall have one-hour fireresistive rating while those of Type V shall have three hour fireresistive rating for bearing walls and one-hour fire-resistive
rating for vertical openings, floors and roofs.
c. Structural frames of Types II and III Construction shall have
2.
be treated with a flame-retardant having a flamespread of fifty (50) or less as determined by the Tunnel
Test.
3.