Burning Copper Azole Treated Wood

Ca is a water based preservative that can be cleaned and painted.

Burning copper azole treated wood.

It is a fungicide and insecticide. Pressure treated wood has gone through a process that uses high pressure to force a solution of water and preservative agents deep into the lumber to help extend its useful lifespan. To make the new preservatives effective their copper content has been boosted substantially from around 18 to 96 in some cases. Micronized copper azole penetrates into and remains in pressure treated wood for a long time.

Toxic chemicals will be emitted in the smoke and ashes from treated wood can be hazardous to livestock or wildlife. Water based preservatives like copper azole leave wood with a clean paintable surface after they dry. Copper azole is a water based wood preservative that prevents fungal decay and insect attack. In 2013 a different technology micropro.

However some preservative may migrate from the pressure treated wood into surrounding soil over time and there may be incidental contact with skin during construction or use. Copper azole is a registered fungicide for treatment of wood. Copper azole treatments contain copper boric acid and tebuconazole type b does not contain boric acid. On january 1 2004 the wood industry throughout north america has ceased to produce pressure treated wood treated with cca chrome copper and arsenic for residential use replacing this chemical with what is generically called non arsenic treatments primarily acq and copper azole ca both of which contains no arsenic but much more copper.

The active ingredients commonly used in treated wood are alkaline copper quaternary acq copper azole ca or micronized copper azole mca. Copper azole and alkaline copper quaternary treatments both contain a fungicide. It is widely used throughout the united states and canada. Precautions for use continued personal protection for normal work on dry treated wood a dust mask and goggles should be worn as protection from wood dust when machining or sawing.

3 of 4 date of issue. Because acq and copper azole contain so much more copper you can expect to pay from 15 to 35 more than you paid for cca lumber. Why pressure treated wood is not safe to burn. Pressure treated wood however avoids these problems by exposing the wood to pressurized chemicals that deters insects and prevents decay.

Chips sawdust and debris from treated wood are considered hazardous waste and should not be burned or disposed of at any location other than those specified by local government agencies. More copper makes the wood more expensive. Never burn treated wood. Material safety information copper azole treated wood products page.

It may look the same as traditional wood giving you a false of sense of security but pressure treated wood is not safe to burn. As with any fungicide treated materials the lumber should be handled with gloves as well as a dust mask when sawing sanding or machining the lumber.