The roof isn't too much of a hazard assuming it isn't wood shake, unless a pile of leaves or twigs has accumulated in a valley.
Any horizontal wood (or other fuel) surface is susceptible to hot embers: decks, porches, eave braces, etc. Lawn furniture cushions can burn down a house.
Any fuel such as grass, weeds, or debris around the house can ignite wood siding. I saw a little bit of dry weeds burn down a shed when the flames crept up the ribs of the metal siding and ignited straw inside.
Are you on an electric pumped well
The power will likely go off when or before a fire comes through, so your hoses won't be much good unless you have a generator or an alternate water supply with a fuel driven pump.
Take care and good luck. We've had a few days since our last fire, but we remain one lightning strike and a bit of wind away from disaster.
