Fire Retardant Treated Wood Siding

There are two ways that combustible siding can make your home vulnerable to wildfire.

Fire retardant treated wood siding.

Adding flame retardants to wood surfaces can slow the spread of fires. Ul recently tested and promulgated a listing for a new two hour load bearing wood frame wall assembly containing pressure impregnated fire retardant treated wood frtw a move that makes it quicker and easier for building officials to approve plans for type iii construction. It is used to meet restrictive fire performance criteria and or to reduce insurance rates. Wood siding can be treated with chemical flame retardant sprays to improve its fire resistance.

Flametech fire retardant treated wood is lumber and plywood pressure treated with flametech water based fire retardant for interior applications. Frx fire retardant treated frt wood reduces flame spread and smoke development for applications directly exposed to the weather including exterior decks balconies stairways canopies siding molding trim and many others. Saferwood siding has passed astm s e 84 and d2898 and is icc compliant. Wood that has been treated with an exterior fire retardant chemical and that has passed a standard flame spread test after undergoing a specified weathering procedure consisting of wetting and drying cycles is called ignition resistant.

Plywood ranging from 15 32 to 1 1 8 inches and lumber from 2 x 4 to 2 x 16 inches is recognized for the species noted below. All saferwood products resist the spread of fire helping to protect both your home and your family. Fire retardant wood is not wood that has been treated with a coating or other external fire retardant and it must be fully incorporated into the wood to be considered a fire retardant wood. Saferwood treated with thermex fr can be produced from western red cedar spruce southern yellow pine hem fir redwood and douglas fir building components to provide a wide range of options.

Exterior fire x treated wood siding combines the economy and natural beauty of wood siding with the insurance and safety advantages of fire resistant siding. These products have passed the most stringent fire retardant tests mandated by building codes. However you should be aware that fire can still penetrate the stud cavity of your home through the joints of the siding assembly. Fire retardant rated wood revient has partnered with flame stop ii to offer a service to our clients to protect exterior and interior woods.

If none of those options sound appealing to you you don t have settle for less than sound fire security. Frx wood meets the requirements of the model building codes for exterior frt wood and has been issues an evaluation report pdf by international code council icc evaluation services. Cedar siding enhances structural integrity durability and when treated by saferwood is proven to be fire resistant. Exterior fire x treated siding is often accepted as an alternate for non combustible siding.