Marin City LP Smartside Siding

If you love the look of wood on a Marin City home — the redwood-clad houses on the slope set the tone here — but you have watched what fog and salt do to real cedar over the years, LP SmartSide is the material that usually resolves the tension. It is engineered wood: real wood strands treated through LP's SmartGuard process, pressed into boards and panels that keep a genuine wood grain and texture but resist the rot, swelling, and pest damage that plague solid wood next to Richardson Bay.

Want the wood look without the wood upkeep? Call (415) 619-5167 or request a bid.

What makes SmartSide different

It sits between natural wood and fiber cement, and it borrows the good parts of each:

• Real wood character. Deep, authentic grain that suits the hillside homes' original look far more convincingly than vinyl or most panels.
• Lighter and more impact-resistant than fiber cement. Easier to handle and less brittle — it takes a knock (a ladder, a stray branch off the open space) better than cement board.
• Treated for moisture and pests. The SmartGuard process is engineered to resist the fungal decay and termite damage that solid wood invites in a chronically damp marine setting.
• Works cleanly. It cuts and fastens more like lumber, which speeds a careful install.
• Well-regarded warranty. LP backs the product with a long limited warranty; we will go over the specifics for your project rather than cite a figure here.

The honest trade-off versus fiber cement: SmartSide is a wood-based product, so it does need to stay painted and sealed on schedule to keep its moisture resistance working — it is low-maintenance, not no-maintenance. And it is combustible, which matters for hillside parcels (below).

Where it shines in Marin City — and where we'd steer you elsewhere

SmartSide is a strong pick for the flatland homes and for hillside houses that are not in a fire-hazard designation but want that warm, wood-clad look with less fuss than solid redwood or cedar. It gives you board-and-batten, lap, and shake looks that fit the local vernacular.

The caveat is fire. The uphill Marin City neighborhoods back onto open space, and the southern-Marin slopes fall within Cal Fire's Fire Hazard Severity Zone mapping (the state's Local Responsibility Area maps were updated in 2025). Where a fire-hazard designation applies to a parcel, Chapter 7A's exterior-wall provisions favor noncombustible or ignition-resistant materials — and as a wood-based product, SmartSide is combustible. If your parcel carries that designation, we would point you to noncombustible fiber cement or James Hardie instead. Whether the designation applies to your address depends on the parcel and scope, which we confirm with Marin County before speccing — so tell us early if you are up the hill.

Weighing it against the alternatives? Compare with real wood siding, vinyl, or the CertainTeed lineup, or step back to the siding replacement overview.

Permitting here

Marin City is unincorporated, so there is no city building department. The permit for exterior wall work runs through the Marin County Community Development Agency, Building & Safety Division (415-473-6550), and we handle that submittal as part of the job.

How the install goes

We tear off the old cladding rather than layer over it — in a salt-and-fog climate, seeing and fixing the sheathing, water-resistive barrier, and flashing is the whole point of re-siding. With the wall open we repair any concealed rot around windows and at the base, renew the WRB and flashing for a wet marine wall, and install the SmartSide to LP's spec, including the recommended finish and clearance details that keep the treatment working. Because it is lighter than fiber cement, it can be a bit gentler on access-limited hillside jobs, though staging on the slope still shapes the schedule.

Cost drivers

SmartSide typically lands between vinyl and fiber cement on material cost. The total depends on wall area and stories; hillside access and staging; substrate repair found at tear-off; the profile and finish you choose; corrosion-resistant fastening and drainage for the marine setting; and whether a fire-zone assembly rules it out in favor of a noncombustible board. We price after we walk the walls.

See finished work in our project gallery, the wider Marin service area, or handle the openings too with Marin City window replacement.

Frequently asked questions

How is LP SmartSide different from real wood siding? It is engineered wood — real wood strands treated and pressed rather than solid boards. You keep the authentic grain and warmth but gain far better resistance to the rot, swelling, and pests that solid cedar or redwood suffer in Marin City's damp air. It still needs periodic paint.

Is it a good choice this close to the bay? For most non-fire-zone parcels, yes. The SmartGuard treatment is built for moisture and pest resistance, which is exactly what the fog and salt test. Keeping it painted on schedule is what preserves that performance.

Can I use SmartSide on a hillside home near the open space? Only if your parcel is not under a fire-hazard designation, because SmartSide is combustible. Where Chapter 7A applies, we would recommend a noncombustible material like fiber cement instead. We confirm your parcel's status with Marin County first.

Do I need a permit in Marin City? Yes. Marin City is unincorporated, so the permit comes from the Marin County Community Development Agency's Building & Safety Division rather than a city hall. We handle it.

Get started

Call (415) 619-5167 or request a bid. We will show you SmartSide samples on your home, weigh it honestly against fiber cement for your exposure, and confirm any hillside fire requirements with the county.