Plywood doesn't have a flashpoint. Only liquids do. Plywood needs a temperature of around 400F to burn.
What is the flash point of 1/2" osb
What is the flash point of 1/2" osb
Flash point of min. 60 °C (140 °F).
Flash point of canola is approx. 425oC
The flash point of ethylamine is -37 0C.
The flash point of natural gas is 500 F
The flash point of asphalt is over 200 oC.
The flash point in WW1 was the assassination of Francis Ferdinand.
Refer to the related link for a Wikipedia article on flash point.
The duration of Flash Point - film - is 1.47 hours.
The flash point difference between diesel and gasoline is that diesel has a higher flash point than gasoline. Diesel typically has a flash point of around 125-180 degrees Celsius, while gasoline has a flash point of around -40 to -60 degrees Celsius.
In some instances, the plywood could have been the finished wall at one point in time. Future owners may have gone over the plywood with drywall.