What is the difference between fascia and barge boards?

Fascia is the board running along the lower edge of the roof, where gutters are usually attached. Barge boards, also called rake boards, run up the sloping edges of a gable. Both are exposed on their faces and edges, both are usually wood, and both are often the first part of a house to peel.

Should every gap in exterior trim be caulked?

No. Joints between trim and wall, mitred corners and the tops of horizontal boards are sealed to keep water out. Some edges are deliberately left open so water that does get behind can drain and the wood can dry. Sealing those can trap water against the wood and speed up rot.

Can fascia be painted behind the gutters?

Only partly, unless the gutters are taken down. Brushes reach a little way behind a gutter, but not the full face of the board. If the fascia behind the gutters is failing, taking the gutters off for painting is worth discussing at the estimate, because it changes the scope of the job.

Why does the trim on one side of my house peel more than the other?

Usually because of sun and water. South and west fascia boards take the most heat and ultraviolet light, and fascia under a leaking or overflowing gutter stays damp. Near the coast, salt adds to the damp. The side with the worst combination of those wears out first.

Painting Exterior Trim and Fascia

Exterior trim, fascia and barge boards are usually the first part of a San Diego house to need paint, because they are wood, they take direct sun and rain on their edges, and gutters keep fascia damp. They last when loose paint is scraped back, soft wood is repaired, bare wood is primed, the right joints are caulked and the finish is brushed on with a clean line.

Walk around almost any San Diego house that is due for paint and the first failure you see will not be on the stucco. It will be at the roofline: fascia boards with paint lifting in strips, barge boards gone gray at the ends, window trim cracked at the corners. Trim is a small share of the surface area of a house, but it takes much more than its share of the time and skill in a repaint.

What counts as exterior trim?

Fascia runs along the lower edge of the roof and usually carries the gutters. Barge boards, or rake boards, follow the sloping edges of a gable. Window and door casings frame the openings. Some houses also have corner boards, belly bands across the middle of the wall, shutters and decorative brackets. On older homes in La Mesa, Point Loma or North Park there can be a great deal of it.

Why does trim fail before the walls?

It is wood. Wood swells when it takes on moisture and shrinks when it dries. Paint on wood has to move with it every day, and it eventually cracks at joints and along the grain.

Its edges are exposed. End grain at the cut ends of boards drinks water like a bundle of straws. The bottom edge of a fascia board and the ends of barge boards are where paint lets go first.

Gutters keep fascia damp. A gutter that overflows, leaks at a seam or holds standing water wets the fascia behind it again and again.

It takes the sun head-on. A south-facing fascia board in Bonita or Santee faces the afternoon sun with no shade. Heat and ultraviolet light break the paint down and dry the wood out between wettings.

How trim is prepared and painted

The order matters more on trim than anywhere else on the house.

Wash. Trim is cleaned with the rest of the house, gently enough not to drive water into open joints or soft wood.
Scrape loose paint. Everything that is lifting comes off. Paint that is still firmly attached can stay.
Sand the edges. Where old paint meets bare wood, the edge is sanded smooth so the step does not show through the new finish.
Probe for soft wood. Bottom edges, joints and the ends of boards are checked with a pointed tool. Soft wood is repaired before anything else. How rot in sills and jambs is found and repaired.
Prime bare wood. Any bare wood gets an exterior primer suited to it. Paint applied straight onto weathered wood soaks in unevenly and does not bond as well.
Caulk the right joints. Joints between trim and stucco, mitred corners and the tops of horizontal boards are sealed with a flexible exterior sealant. Drainage gaps are left open.
Apply two finish coats, usually by brush on trim, for coverage and a clean edge.

If the trim was last painted in an oil-based finish decades ago, there is an extra step to make the new paint hold. Painting over oil-based trim.

The line between trim and wall

On most stucco houses the walls are painted first and the trim afterwards, often in a contrasting color. The line where they meet is the detail people notice from the street. Cutting a straight, crisp line by hand along rough stucco takes patience, a steady hand and a good brush. It is a small thing that separates a careful paint job from a hurried one, and it is part of what Ebenezer means when he says “Paint to me is an art.”

Height and access

Fascia and barge boards are, by definition, at the highest part of the house. On a single-story ranch home in Bonita, ladders usually do. On a two-story gable, or a house on a hillside lot where the ground falls away, reaching the barge boards safely may take more planning and sometimes staging. Ebenezer holds OSHA 30, OSHA 10 and scaffold certifications, among 22 in all, and plans access before the work starts rather than improvising it on the day.

Gutters

Painting behind a gutter is the trim question that most often surprises homeowners. A brush reaches only part of the way behind it. If the fascia behind the gutters is sound, painting what can be reached is usually enough. If it is peeling or soft, the honest conversation is about taking the gutters down, repairing and painting the fascia, and putting them back. That changes the scope, so it is named at the estimate rather than discovered halfway through.

Color and sheen

Satin is the usual finish on fascia, because it is forgiving on long, weathered boards. Window and door trim often goes a step up to semi-gloss. A contrasting trim color frames the house; a trim that matches the body quiets it. Either way, ask for the color names and sheen to be written down, because trim is often repainted before the walls are. Choosing exterior sheen.

Getting trim done properly

Trim is where a paint job is judged up close and where it fails first, so it deserves time. Ebenezer will go round every fascia, barge board and window with you, point out what is sound and what needs repair, and put it all in the estimate so nothing is a surprise. More on exterior painting, on wood repair, or on the older homes of La Mesa and Bonita.

If your trim is peeling ahead of the rest of the house, ask for a free estimate before the weather reaches the wood underneath.