CLUB PRIME is made by a special pre-pressing technique that ensures equal distribution of moisture and adhesive. A special chemical process gives the wood properties that result in reduced damage to the structure in a fire. Paint grade internal FD30 fire resistant door flush plywood door is a range of sizes with 35mm 44mm or 45mm thickness options. Fire-rated plywood is available from general home improvement stores and lumber suppliers throughout the nation. The International Building Code requires a smoke-developed index of less than 450. It is ideal for painting or upgrading existing wood or timber surfaces to either 30 or 60 minutes of fire protection. Please enter the email address you used to create the account. span 8', span 8', 3" x6" ledger, trusses metal "I" joists @ 8" o.c. This helps prevent plywood from burning when it comes into contact with fire. And it's not just thickness that makes the difference. Mon to Fri 8:00 - 17:15 Sat 8:00 - 12:15. . Ordinary plywood once ignited rapidly gets destroyed, it acts as a medium to spread fire within minutes. In BS fire retardant properties is classified basis testing a plywood for its spread of flame at 90 sec and 10 min and basis the spread it is classified under Class 1, 2, 3 & 4. Otherwise, you run the risk of having your home burn to the ground. Its not going to be totally inflammable. Why should you choose Centuryply product with Firewall Technology ? , w/ 1 layer 3/4" wood planking, 3/4" T&G wood, span 15', live load 40lbs, 2"x 10" F/D joists @16" o.c. 8 Commercial Blvd, Suite E