Painting Contractors and the Mid Century Post and Beam House

A post and beam house from the nineteen fifties or sixties is an unusual thing to repaint, because on most of these houses the structure is the finish. There is no applied trim hiding the frame. The beam you see over the dining table is the same beam you see over the carport, the ceiling boards you look at from the sofa pass over your head and out through the glass to become the soffit, and the siding is often just plywood with grooves in it, doing a structural job and a decorative one at the same time.

That single fact changes almost every decision in the job. On a conventional house, the inside and the outside are two separate projects with a wall between them. Here they are one continuous surface interrupted by a pane of glass, and a crew that treats them as separate will leave you with a beam that is one colour in the living room and a slightly different colour two feet away in the open air.

It also means that anyone shopping for local house painting in long beach on a mid century home should be asking a different set of questions than a neighbour with a stucco ranch, because very little about the scope is actually the same. What follows is the part of the job that is specific to the style.

The members that run through the glass line

Pick any exposed beam that penetrates the window wall and you have one piece of timber living in two climates. Indoors it is dry, stable and seen at close range under warm light. Outdoors it takes ultraviolet, the night damp off the water and whatever the irrigation throws at it.

The temptation is to use one product on the whole length so the colour is guaranteed to match. That is the wrong way round. Use the right coating for each environment and control the colour by specifying the same tint in both products, then check the two samples side by side in daylight before anything is sprayed. An interior enamel outdoors will chalk and fade inside a few seasons. An exterior coating indoors will usually be softer, smell longer and look plasticky at arm’s length.

Sheen is the second half of that. Even at identical colour, a satin exterior and a low sheen interior read as two tones where they meet at the glass. Either match the sheen, or break the colour deliberately at the inside face of the frame, which at least looks intentional.

Sorting the exterior into materials before anyone quotes

These houses mix more cladding materials on one elevation than almost anything else built since, and each one wants something different.

Slump block, brick and stone veneer usually stay bare

A great many of these houses carry a slump block or used brick feature wall, often running from the entry court straight through into the living room. It was almost never painted. It was chosen for the texture and the shadow, and painting it flattens the one element doing that job.

It is also close to irreversible. Once a coating is in the pores of a soft masonry unit, taking it off means media blasting or chemical stripping, both of which will change the face of the block even when they work. If the wall is dirty rather than damaged, the answer is washing and possibly a clear breathable water repellent, not paint.

If a previous owner already painted it, you are not obliged to repeat the mistake in the same product. A mineral or silicate coating lets the wall dry outward where a standard acrylic will trap moisture behind a film and blister. Either way, make sure the estimate states explicitly whether masonry is included or excluded.

Grooved plywood and board and batten

Rough sawn grooved plywood is the workhorse siding of the style, and it is harder to coat well than it looks. The grooves are deep, narrow and vertical, and a sprayer passing across them lays a heavy film on the flat faces and a thin, starved one on the groove walls where the next failure will start. Grooves need back rolling or back brushing while the material is wet, every pass, which is slower and should be in the price.

Board and batten has its own issue. The batten edges are the exposed part, they take the weather first, and they are exactly where a crew in a hurry stops short. Sight along a wall after the first coat and look at the batten edges, not the field. Both products have a rough face that drinks material, so a full priming coat on any bare or weathered area is not optional.

Tongue and groove eaves and soffits

Wide overhangs with exposed tongue and groove decking are one of the best looking parts of the style and one of the most awkward to coat. They are usually unvented, they are seen from below at a raking angle that shows every lap mark, and a spray gun aimed upward produces run back onto the operator and uneven build.

Many of these soffits were originally stained and sealed rather than painted, and if the boards are sound that is often still the right call. A clear or lightly pigmented penetrating finish keeps the grain, which is why it was built that way.

Flat fascia

The flat fascia board along the roof edge is a long, unbroken run at eye level from the street, and it fails before anything else on the house. It takes direct sun along its full face, it carries the gutter, and its top edge sits under a roof that drips on it.

Two things matter. The top edge where fascia meets roofing wants sealing so water cannot sit in the joint. The bottom edge, including the drip edge, must stay open so anything that did get in can leave. And because the run is long and straight, any ripple in the filler, any sanding scratch and any variation in the number of coats is visible for its entire length.

The preparation problems this style actually has

Beam ends and rafter tails

This is where the real money hides. A beam that passes through the wall ends in exposed end grain, often with a slight upward tilt collecting water, and end grain absorbs moisture far faster than a face. Rot at a beam end is common, it starts inside, and a coat of paint over it is the worst possible outcome because it seals the moisture in and hides the evidence.

The check is mechanical, not visual. A probe pushed into the end grain and the underside, on every tail, before a price is fixed. Where the damage is shallow and the member is still structurally sound, a consolidant and a structural epoxy filler is a legitimate repair. Where a tail is soft well back into the sound wood, the honest answer is cutting the end square and splicing in a new piece, which is carpentry and should appear as carpentry on the quote.

Whatever the repair, the fresh end grain gets sealed properly, with several coats worked in until it stops absorbing. A simple metal cap or small sloped flashing on top of an exposed tail buys years and is cheap while the scaffold is up.

Checking

Checking is the fine splitting along the grain of a large timber as it dries and moves, and on a solid beam it is normal rather than a defect. Filling a check with a rigid compound gives you a hard line that opens again at the first seasonal swing and now has a visible ridge beside it.

Narrow checks are left alone and coated over with a flexible finish that can move with them. Wide checks on an upward facing surface, where water collects, are the ones worth sealing, and they want a flexible sealant that stays elastic rather than a sandable filler. A crew that proposes to skim the whole beam smooth has misunderstood what it is looking at.

Old penetrating stain under old paint

Many of these houses were stained originally, then painted at some point when the stain got tired. Opaque paint over an oil based penetrating stain can hold for decades or let go in sheets, and which one you have is worth finding out before the first gallon is bought.

The symptoms are a coating that peels cleanly away from the wood in flexible flakes with the back face still showing stain colour, rather than brittle chips. The test is a small crosshatch and tape pull in two or three places on different elevations, and a hand scrape in the worst area to see how far the loose material travels.

Tannin and old oil both bleed through water based topcoats, particularly on redwood and cedar, which these houses use heavily. A stain blocking primer on every bare or repaired area prevents the brown shadows that otherwise turn up through a light colour a month after the crew leaves.

Glass, sightlines and the thin parts

Clerestory bands and full height glazing mean a lot of narrow framing. The visual appeal of those openings is how little frame there is, so anything that thickens a mullion damages the thing people like about the house. That means cutting by hand rather than masking wide and building a fat edge of paint onto the glass stop, and resisting the urge to fill every small imperfection in a sash until the profile has gone soft.

Anodized aluminium sliders and window walls are a separate conversation. They can be coated, but only after proper abrasion and an adhesion primer suited to metal, and they can equally be left alone and cleaned.

A restrained palette, and exactly one accent

The period palette was narrow on purpose. Two colours and an accent, sometimes just two, with contrast carried by value and material rather than by hue. The siding takes the body colour, the exposed structure either matches it or goes a few steps darker so the frame reads as a frame, and the front door is the single place where saturated colour belongs.

The failure mode is a bright white trim colour cut in around every opening. On a house with this much glass that produces a grid of white rectangles, and the horizontal lines the design depends on disappear behind it. If the frames need distinguishing at all, a deeper tone of the body colour does it without fragmenting the elevation.

Keep the sheen low outdoors. Flat and low sheen finishes let the texture of the grooved plywood and the shadow of the overhang do the work, where a glossy body coat reflects sky and flattens everything. Save the higher sheen for the door and any metal.

What to settle before the first day

Get a written scope that names the masonry decision, states whether the soffits are being painted or refinished, lists beam end repairs as a separate carpentry line with an allowance rather than a guess, and specifies the interior and exterior products that will meet at the glass.

A mid century house repays this kind of attention, because the elements you are deciding about are the architecture itself. There is nothing else on the building to look at.