Refinishing a Front Door That Faces the Afternoon Sun

A door that crackles when a thumbnail runs across it has a finish that has lost its grip, and every teardown temecula exterior painters ptag online has logged shows the blisters starting on the hinge side of doors facing west. Exterior painting of a front door in Temecula, CA is slow work because the surface cooks every afternoon and the coating has to survive that.

Why a west door fails first

Direct inland sun heats a dark door well past the temperature of the air, and the finish swells, lets go and lifts in blisters. Wood doors also move with the heat, so a stiff old film cracks along the panel edges. Fibreglass doors hold up better but the stain and clear coat chalk and go cloudy in a few summers.

Strip or sand

If the film is peeling in sheets or the wood has gone grey, it is stripped back to bare wood with a chemical stripper and a plastic scraper. Where the finish is only dull, sanding and a scuff sand through the old coat is enough. The door stays in its frame, so the edges are masked and the hinges are taped before any stripper goes on.

Patching and caulk

Small dents and open grain take a stainable wood filler or an exterior spackle. Gaps at panel joints get a bead of flexible caulk, pressed in and smoothed before it skins over. Rot at the bottom rail is dug out and rebuilt with epoxy, since the bottom edge takes water from every rain.

Primer, topcoat and sheen

Bare wood takes a coat of primer on every face including the top and bottom edges, which are the first places water gets in. A solid colour door gets two coats of acrylic enamel in satin or semi gloss, brushed on and laid off along the grain. Semi gloss is easy to wipe and sheds dust from the road. Clear and stained finishes need a marine grade varnish with a UV filter, as many as four thin coats.

Drying time and the frame

A door that stays in its frame cannot be laid flat, so coats go on thin to avoid runs. Each coat needs a full dry window before the next, and the door stays shut only after the finish stops being tacky. Painters on Pechanga side roads often work early so the door is in shade while the film sets.

Hardware and weatherstrip

Handles and lock sets come off, not around. Weatherstripping is left alone, taped back, and checked when the job is done so the door seals again against the wind that comes up the valley.