Hello,

Is anyone aware of any standards, regulations or manufacturer recommendations on landscaping mulch? This would be for flame spread, how it is transported / stored, and in what quantities.

My opinion is that there are too many variables with mulch to come up with a specific or range of ignition temperatures. Variables may be, but not limited to: Is the wood mulch from- hardwood or softwood or unknown mix, was any colorant or preservative added, is mulch from old industrial pallets that may have combustible residues soaked into wood fibers, moisture content, etc.

Flame spread is another large variable, also with the above items applied along with the unknowns of what the mulch may be contaminated with such as dry leaves, lawn clippings, or other vegetation, base fabric or plastic sheeting (if any) the mulch may be applied over, etc.

There is mulch out there now manufactured from old tires.

In any type of wood based mulch it must be considered organic based and with proper conditions that can (and do) occur in decomposing vegetation, could result in a self-heating to ignition phenomena condition.

Thank you very mulch...........

Ted J. Pagels
FIREPROSe, LLC
Green Bay, WI