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Even a Class A roof can be vulnerable at its edges. You can argue that the roof edge is no longer the roof, but regardless, it is still important to understand, and address, these vulnerabilities.
For best performance, skylights should consist of two layers, with one of them consisting of tempered glass (for improved resistance to larger embers striking and breaking the glass). Likely exposure for a skylight would be from the impact of an ember or other object lofted during a wildfire.
The side of a house is vulnerable to wildfire. Siding can be vulnerable at lap joints. Combustible siding can threaten other parts of the house if it ignites and the resulting flame impinges on the window, or spreads to the eave area and threatens under-eave or gable end vents.
The under-eave area is vulnerable if embers enter the attic area through any gaps that may exist in this area, or if flames from ignited vegetation, siding, or other near-home combustible materials reach the area.
The area surrounding the structures on your plays a vital part in the fire-resistance of your home. this includes your defensible space - up to 200 feet or more in the state of California, vegetation and its maintenance, and outbuildings.
Some actions are more complex and expensive, may require expert help and take several years to implement. Your lot Make an overview sketch of the features of your lot and house including slope, trees, shrub, decks.
