Exterior rated fire retardant treated frt wood products are pressure impregnated with chemicals that improve the fire performance characteristics.
3 8 wood siding fire rating.
Two hour fire rated loadbearing wood frame wall assemblies.
3 8 wood structural panel with exterior glue 5 minutes 15 32 wood structural panel with exterior glue 10 minutes.
When they are you get 20 minutes in a wall and 10 minutes with floor and roof joists.
The highest rating possible for fire resistance.
These wood products undergo a processing step whereby these chemicals are fixed or otherwise contained to prevent or minimize leaching of the chemical.
Your wood framing members are required to be not more than 16 on center.
9 1 4 1 1 2 mineral wool batts.
A class a rating means it is going to offer the maximum protection possible.
E 3 8 wood structural panels v 6d common nails 6 edges 12 field ws6 1 5 h applied horizontally with vertical joints over studs i interior sheathing v applied vertically with vertical joints over studs e exterior sheathing table 2.
Steel siding not only offers protection against a fire it is also naturally resistant and does not require the use of fire resistant treatments.