77 - F.R.T.P.

Question 1

Fire Retardant Treated Plywood

General Info.

Answer 1

• Generally used above PW separations (Townhouses & MD Apt
  Houses)
• Deterioration = Excessive waviness in roofs near PW’s
• Treated w/a chemical to decompose plywood & renders it LESS
  flammable.
  
  • Process is faster in heat & high humidity.
    - Becomes brittle to the extent that can put hand through it
    ** IF F.R.T.P. OBSERVED ATBA CONSTR. ALTERATION SITE,
    OFF’s SHALL NTFY ADJ. CO’s BY TEL. FOLLOWED BY
    WRITTEN MEMO AND COMPLY W/COMM. MANUAL CH. 4 -
    CIDS.