Termite Damaged Boards and How Long Repairs Cure Before Painting in Carlsbad

Tap every fascia board and window casing with a screwdriver handle and listen for a hollow sound, and stop the paint job if a tip goes through. The repair steps listed at carlsbad exterior painters indy grace under exterior prep apply to houses across Carlsbad, CA, where drywood termites show up in fascia, eaves and window trim.

What the damage looks like

Drywood termites eat along the grain and leave a thin skin of wood on the surface, so a board can look fine and sound hollow when tapped. Small pellets, about the size of a grain of sand, collect below the holes. Subterranean termites leave mud tubes near the foundation instead. Either finding means a pest control company should look at the house before repairs begin, because painting over active termites fixes nothing.

Replace or fill

Boards that are hollowed along most of their length get replaced. Small damaged areas, such as a corner of trim, can be dug back to solid wood and rebuilt with a two part wood epoxy, which grips the fibers and sets harder than the original board. Spackle is the wrong choice outdoors. Whatever the repair, the damaged wood has to be removed first, not coated.

Cure times decide the schedule

Epoxy filler is usually hard enough to sand after several hours, and many products want a full day before they take primer. Exterior patching compound over a deep fill can stay soft in the middle longer than the surface suggests, and the label gives a time for each depth. Painting over filler that has not cured traps solvent and moisture, and the topcoat wrinkles or stays tacky.

Sanding and priming the repair

A cured repair gets sanding until the edges disappear into the board, then primer on the filler and the surrounding wood. Epoxy and new lumber both take paint differently from old paint, so a spot prime should be followed by a full coat of primer over the whole board. A repair left unprimed shows through the topcoat as a dull patch, with a different sheen from the wall around it.

Weather in Carlsbad

Winter rain and damp mornings slow curing. Epoxy and filler need dry air and a mild temperature, so repairs go best on dry days between storms, with a day or two of margin before primer. Fog in the early summer months eats into that margin as well, so the schedule should follow the product label and the wood rather than the calendar.

Two coats of acrylic latex go on last, once every repair has hardened and every cut end has primer.