Fascia

The fascia's problem is water that does not leave the roof cleanly. ARMA's technical bulletin on drip edge describes the path. Drip edge at the eaves, gables and rakes helps “mitigate the potential rotting of wood materials that can result from water getting underneath the edge of the shingles,” the bulletin says, and “This can happen if water flows back onto a roof deck or fascia.”

ARMA's answer to that path is a drip edge: its manual says the metal bends downward over the fascia, and its bulletin adds an outward bent flange at the lowest edge so water is directed away from the supporting wood.

The FRSA-TRI Florida High Wind Concrete and Clay Tile Installation Manual defines the board itself as “An ornamental board used to cover the rafter or truss end at the eave.” Ornamental describes the face. What sits behind it is structural: the ends of the framing that carries the roof.

ARMA's bulletin is written for shingled roofs, and the FRSA-TRI manual defines the same board for tile. Florida's contractor statute ties the board to roof work. Florida Statutes 489.105(3)(e) says a roofing contractor's scope includes “any repair or replacement of wood roof sheathing or fascia as needed during roof repair or replacement.”

Eagle Roofing Products' 2024 spring article starts a roof inspection on the ground: “Begin your roof inspection with a brief walk around the building.” The first thing it names to look for is water damage in the fascia areas, followed by loose rain gutters or downspouts and missing or cracked roof tiles. Eagle also tells the owner not to try fixing those concerns personally.

From the ground the board sits at the eave whatever roof is above it: steep tile, low-profile tile, which InterNACHI describes as flat or close to flat, or a low-slope roof, a class OSHA sets by incline alone. Any look closer than the ground view is taken at a roof edge, above a lower level, which is the setting fall protection gear such as a personal fall arrest system is built for.

Whether a cleaning changes what a walk-around like Eagle's can see is its own question, taken up under whether a clean roof makes damage easier to see.

The repair is a different trade: the statute quoted above puts fascia work done during a roof repair or replacement with the roofing contractor, and Eagle lists replacing broken roof tiles among a roofer's repairs. Why a roof cleaner and a roofer are different jobs is set out in whether a roof cleaner is the same as a roofer.