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Why Does Wood Pop. As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. Gas needs more space as it expands into the pocket trapped inside the wood.
Normally, when temperatures and humidity levels fall again, your floor will pop back. Gas is created by trapped moisture locked in small pockets within the wood. These gases escape either by an explosion or by finding their way through holes caused by insects.
Gas needs more space as it expands into the pocket trapped inside the wood. As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. And, in these moments, the popping and crackling picks up and increases until the moisture in.
Firewood popping occurs when burning wood has a high moisture content. When the wood is burned, combustible gasses will be released. Gas is created by trapped moisture locked in small pockets within the wood.
When temperatures rise and, or humidity levels rise, your wood will expand and if there has been an insufficient expansion gap left around the perimeter of your room, the risk is that the wood will pop up as it expands, because there’s nowhere for it to go. These gases escape either by an explosion or by finding their way through holes caused by insects. Some will get stuck in the wood.
Normally, when temperatures and humidity levels fall again, your floor will pop back. Once the gas pressure builds up it will create an energy burst with mini explosion. As the gas escapes, the fire will emit an audible pop or crack.
