If you have to perform a long list of extraordinary precautions to make something safe enough to do, maybe you should reconsider doing it at all.
GirlHacker points to a story about a family home lost as a result of raging wild fires.
A barrel tile roof, boxed eaves, brick and stucco siding and clean rain gutters may have helped stop the fire, but an ember got in an attic vent and all was lost. The vent had a mesh with quarter-inch holes. An eighth-inch hole mesh is recommended. Other fire hazards that can set off a house: wooden patio furniture, ornamental plants, mulch, and palm trees.
When "normal" behavior such as having ornamental plants in your yard, mulching the flower beds, and having wooden patio furniture must be avoided to reduce the chance that your house will burn down, and when the difference between quarter-inch mesh and eighth-inch mesh allows an ember to destroy your home, you might have picked a bad place to put it.