Choosing siding for a Maryland home — and why the layer under it matters most

Vinyl, honestly

Vinyl clads more American homes than anything else for defensible reasons: it costs the least installed, never needs paint, cleans with a hose, and modern versions are far better than the wavy, brittle panels of the 1990s that gave it its reputation. For a Frederick-area colonial or townhouse on a budget that has to cover roof and windows too, quality vinyl is a rational, durable choice — twenty to thirty years of service is realistic.

Its honest weaknesses: it gets brittle in hard cold and can crack from an impact a warmer panel would shrug off; a stray baseball or an errant string trimmer writes permanent notes on it; deep, dark colors fade visibly over a decade; and it cannot be convincingly repainted, so the color you buy is the color you keep. Thickness is the quality lever — panels around .044 inches and up resist the waviness and rattle of builder-grade .040 — and foam-backed insulated vinyl stiffens the wall, quiets it, and lies flatter.

The detail that decides whether vinyl lasts is invisible on day two: vinyl expands and contracts dramatically with temperature — a twelve-foot panel moves close to half an inch across a Maryland year — so it must be hung loose on its nails, never pinned tight. Nailed hard to the wall, it buckles in July and cracks in January. Wavy vinyl on a two-year-old install is almost never a product failure; it is an installer who nailed it like wood.

Fiber cement, and the engineered-wood middle path

Fiber cement — cement, sand and cellulose pressed into boards — is what most people are picturing when they say they want the house to look “done right.” It is dimensionally boring in the best way: it barely moves with temperature, does not rot, does not burn, laughs at woodpeckers, and holds paint twice as long as wood because it is not moving underneath the film. In Maryland’s swing between humid summers and freeze-thaw winters, that stability is exactly the trait worth paying for, and factory-finished versions carry fifteen-year finish warranties.

Its costs are real: the material and its specialized cutting and fastening put installed cost well above vinyl, it is heavy, and cutting it requires dust control because of the silica involved — all reasons fiber cement punishes cheap installation even harder than vinyl does. Clearances at roofs and grade, gapping and sealing at butt joints, kick-out flashing where roof meets wall: skip those and the one vulnerability fiber cement has — wicking water at cut edges — gets exercised.

Engineered wood (resin-bonded wood strand, LP SmartSide being the name most people meet) has become the credible middle path: warmer, more wood-like texture than fiber cement, lighter and faster to install, tougher against impact than either rival, priced between vinyl and fiber cement. Its history includes the hardboard failures of the 1980s and ’90s, and the modern products are much better engineered — but like everything on this page, they live or die on flashing and edge-sealing. There is no maintenance-free siding; there are only maintenance-light ones installed well or badly.

The layer you never see is the one doing the work

The photograph on this post is deliberately not a finished house — it is house wrap going over sheathing on one of our jobs, because that layer is the actual weather system. Every siding, vinyl or fiber cement or wood, leaks a little; wind-driven Maryland rain finds laps and joints. The wall survives because of what is under the cladding: a continuous water-resistive barrier, lapped like shingles so water sheds down and out, taped at seams, and integrated with flashing at every window, door and penetration so that water which gets behind the siding is escorted back outside.

A re-side is also the only day in a house’s life when the sheathing is visible, and a crew worth hiring treats that as the point. Soft OSB around old window corners, the dark tea-staining of long-term leaks, carpenter-ant galleries — all of it gets found and fixed for the cost of lumber while the wall is open, or hidden for free behind new siding by a crew in a hurry. Ask every bidder the same question: what is your allowance and unit price for sheathing replacement, and will I see photos of what you find? The answer sorts the field fast.

This is also the moment insulation gets cheap: fan-fold foam or thicker rigid board under the new siding tightens an older Frederick house’s draftiest surface, and insulated vinyl builds the same idea into the panel. None of it is glamorous. All of it is why two identical-looking re-sides can behave completely differently in year fifteen.

What a siding replacement actually involves

A typical single-family re-side runs one to two weeks: strip to sheathing, repair what stripping uncovers, wrap and flash, then hang siding and rebuild the details — and the details are where the labor lives. Window and door trim, corners, the soffit and fascia that close the roofline, the transitions where siding meets brick, deck ledgers, and porch ceilings. Soffit and fascia belong in the scope conversation explicitly, both because they weather at the same rate as the siding and because soffit venting is part of the attic’s breathing.

It is loud, honest work — a re-side is several days of hammering and saws, protective but survivable for a household working from home — and it produces real debris, so dumpster placement and magnetic nail sweeps of the lawn are legitimate contract items, not fussiness. Landscaping against the walls gets tied back or protected; the crew that mentions your hydrangeas unprompted at the walkthrough is a crew that has done this before.

On paper: siding replacement in Maryland is MHIC-licensed home improvement work, most municipalities want a permit for full replacement, and quotes should name the product line and profile, the wrap and flashing spec, the sheathing allowance, and who owns cleanup. Partial re-sides — one weather-beaten wall now, the rest later — are legitimate and we do them, with the honest caveat that exact color matching against ten-year-old weathered siding is not fully achievable, which is why the phased plan works best when the phases break at corners.