Spray Foam Insulation in Rohnert Park, CA

Spray Foam Insulation in Rohnert Park works with a housing stock that was mostly built on purpose, in sections, after 1962. Wikipedia describes Rohnert Park as an early planned city, laid out once the Highway 101 Cotati bypass was finished. It incorporated in the summer of 1962 with 1,325 acres and about 2,775 residents, the first new city in Sonoma County since 1905.

Same plan, same gaps

When a neighborhood is built from a few floor plans, the insulation weak spots repeat. In Rohnert Park's older sections we look for settled attic insulation, unsealed top plates and can lights, ducts in the attic with leaky connections, and garages with rooms above them. Once we have done a few homes on a street, the fixes are predictable.

Renters and owners

At the 2020 census Rohnert Park had 17,768 housing units, and 53.5% of occupied homes were owner-occupied. For owners of rentals, attic sealing and blown-in are low-disruption improvements that can be done in a day without moving tenants out.

Weather

Rohnert Park sits on the flat valley floor between Santa Rosa and Petaluma. Summers are warm and dry, and winter mornings are cold enough that uninsulated floors are noticeable.

Help with costs

Sonoma Clean Power lists Green House Calls, a free weatherization service for residents of Rohnert Park and a few other nearby cities. PG&E's Energy Savings Assistance program and BayREN EASE are also listed. Check the eligibility rules.

Earthquake country

The Rodgers Creek Fault runs through the area. If you are retrofitting a raised foundation, insulate the floor after the retrofit work is done.

Section by section

Rohnert Park's sections went up over several decades, so a house on one side of town may be ten or twenty years older than one a mile away. Older sections tend to have attic insulation well below today's targets; later ones have more, but often with gaps around attic hatches, recessed lights and duct boots. We match the plan to what the attic actually holds.

Single-story homes

Many Rohnert Park houses are single-story, so the attic sits over the whole living space. That makes attic sealing and topping up especially effective here: every square foot of ceiling is a square foot of the house. Blown-in fiberglass or cellulose usually gets there for less than foam.

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