Fire Resistant Wood Siding

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.
Fire resistant wood siding. Especially when it comes to wood you re using for decking siding and fencing. But while it does help improve the resistance wood siding is still more susceptible to burning in a fire than other types of siding that s more fire resistant. While natural wood makes for easy tinder some companies offer clapboards and shingles impregnated with ul approved fire retardant chemicals. Steel siding not only offers protection against a fire it is also naturally resistant and does not require the use of fire resistant treatments.
About 1 50 per square foot. Unlike wood siding fiber cement siding doesn t burn even under extreme heat. Be sure to retreat the wood regularly so it will stay fire resistant because the chemicals leech out over time. But in normal circumstances naturally fire resistant wood is a smart and sound investment.
Many fiber cement products carry a class a fire rating meaning that they can withstand several hours of heat before melting down. 90 of the planks are made of materials that won t burn giving fiber cement siding a class 1 a fire flame spread rating the highest classification available. Flammable materials like wood are often made resistant to a fire by the use of flame retardants. However there can be concern over the chemical properties and potential off gassing of these products.
Chemical flame retardant sprays help improve the fire resistance of this house siding material. Cedar siding enhances structural integrity durability and when treated by saferwood is proven to be fire resistant. Saferwood siding has passed astm s e 84 and d2898 and is icc compliant. And the good news is these two criteria don t need to be mutually exclusive.
Options like cement board siding come in a variety of modern textures profiles sheens and shapes providing an abundance of design flexibility while still being fire rated. The secret to fiber cement s durability is also what makes it fire resistant. These products have passed the most stringent fire retardant tests mandated by building codes. Choosing fire resistant siding should be a primary factor when choosing aesthetically pleasing siding.
An alternative to vinyl siding fiber cement a mixture of cement sand and wood fibers manages to achieve very high fire resistance without sacrificing convenience and durability. Cedar siding adds distinctive character to any home or structure.