Engineered Hardwood in San Rafael

San Rafael Conditions That Affect Engineered Hardwood

Engineered hardwood exists precisely for climates like this. With San Rafael summer highs near 81°F and air conditioning drying the house out, a cross-laminated or multi-ply core moves far less across the grain than solid wood does, so seasonal gapping is much less pronounced. It is the reason we recommend engineered over wide plank widths in particular — the wider the board, the more a solid version would move.

NOAA 1991-2020 normals record a January average low of 42.6°F and no measurable snowfall in any month. Through winter the same stability works in reverse: the core resists the swelling that a solid floor would show as the house takes on moisture. Stable is not inert, though — the expansion gap at the perimeter still gets set properly.

The station's warmest month is August (81.3°F average high) rather than July (80.9°F) — the late-summer temperature peak characteristic of marine-influenced Bay Area locations. Marine air moderates San Rafael's humidity swing, which suits engineered hardwood well; the same air is a reason to confirm the subfloor is dry before a glue-down rather than assuming it.

Subfloor and Foundation Work

San Rafael ZIP codes 94901 and 94903 are eligible for California's Earthquake Brace + Bolt program, which the California Residential Mitigation Program states is 'only done on wood-framed, pre-1980 homes with a raised foundation' over a crawl space and does not cover slab foundations. The City's own adopted-code findings also record that many areas of the city sit on bay alluvial soils subject to liquefaction, and that topography brings risk from hillside runoff and landslides.

Regionally, crawl space use in Pacific-division construction has declined long-term and dropped sharply only in the past decade, against 89.9% slab in new 2024 builds — so raised floors turn up more often in San Rafael's 1950s, 1960s, and 1970s stock than in anything recent. We confirm on site.

Over a crawlspace, engineered goes down by nail, staple, glue, or float, so the method follows the subfloor rather than the other way round. We flatten the subfloor first — engineered plank is stiff, and it bridges dips instead of following them, which is what produces hollow spots underfoot.

Source: NAHB analysis of the Census Bureau Survey of Construction, foundation type by region (2024)

San Rafael Homes We Work In

ACS 2020-2024 5-year estimates put 55.7% of San Rafael's 23,909 housing units in the 1950-1979 range (1960s 22.1%, 1970s 17.0%, 1950s 16.6%), with a further 9.8% predating 1940. In San Rafael's 1950s, 1960s, and 1970s housing, engineered often wins on height as much as on moisture: a thinner assembly clears existing door jambs, appliance toe-kicks, and the transitions to rooms that aren't being redone, which matters when only part of the house is getting new floor.