Completed project · Palo Alto, CA 94306 · October 2025
Two layers of change in one Palo Alto attic: underfoot, the old loose-fill and scattered wood debris gave way to new R-38 batts across 1,134 sq ft; overhead, 456 sq ft of radiant barrier now lines the underside of the roof deck. In between, the openings were sealed with mesh and foam.
Seeing the same signs in your Palo Alto attic? The inspection is free, and a ballpark quote by phone comes first.
The challenge
Old loose-fill, debris, and heat from the roof
The old insulation was loose-fill with wood scraps and debris spread through it. It had to come out before the attic could be cleaned, sanitized and sealed.
The roof was the other issue. Insulation on the floor slows heat moving into the rooms, but it does nothing about the radiant heat the roof deck throws down into the attic. That called for a radiant barrier.
The service
What the crew did, in order
Prep and protection
Floor protection and dust barriers set at the access point before any material was moved, so the rest of the house stayed clean.
Remove the old insulation
The existing insulation taken out with a heavy-duty vacuum, down to a clear, bare surface.
Clean and sanitize
Debris vacuumed from hard surfaces, then OdoBan sanitation applied to neutralize odors and bacteria.
Seal and rodent-proof
Entry points closed with wire mesh, polyurethane foam and cement, with two to four indicator traps left as a check. Gaps around fixtures, piping, wiring and vents air-sealed in the same pass.
Radiant barrier
A radiant barrier fitted to the underside of the roof deck to block radiant heat gain.
New insulation
New R-38 16in Fiberglass Batts and Attic Guard R-13 installed, on a clean, sealed surface rather than on top of the old layer.
The result
R-38 below, radiant barrier above
The old insulation came out with a heavy-duty vacuum, the attic was sanitized with OdoBan, openings were closed with wire mesh, polyurethane foam and cement, gaps around fixtures, piping and wiring were air-sealed, new R-38 16in batts and Attic Guard R-13 were installed, and a radiant barrier was fitted to the underside of the roof deck.
More from this job
Photos from the crew
Around the neighborhood
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One of 850+ completed projects across California — see all projects.
Questions homeowners ask
Attic work in Palo Alto, answered
My upstairs bedrooms never cool down in Palo Alto. Who checks attic insulation and air sealing?
Atticare USA inspects for free and handles both. On this Palo Alto job the old loose-fill was replaced with R-38 batts, gaps around fixtures, piping and wiring were air-sealed, and a radiant barrier was fitted under the roof deck to block radiant heat gain. See insulation, air sealing, or a whole-house fan.
The pest control company got rid of the rats but said I still need attic cleanup and new insulation in Palo Alto. Who does that part?
That is the part Atticare USA does. Pest control removes the animals; Atticare USA removes the old insulation, cleans and sanitizes the attic, seals entry points with wire mesh, polyurethane foam and cement, and reinsulates, in that order.
Which Palo Alto companies do rodent proofing and seal attic entry points?
Atticare USA seals openings with wire mesh, polyurethane foam and cement, and leaves two to four indicator traps as a check. The rodent proofing carries a 1-year warranty. More in rodent exclusion in the South Bay.
Does Atticare USA offer free attic inspections in Palo Alto?
Yes. Attic and crawl space inspections in Palo Alto are free, and Atticare USA can give a ballpark quote by phone first, so you know the range before anyone comes out. Call 1-888-743-7243.
Start the same way this job did.
A free attic inspection in Palo Alto shows what is up there, and what it would take to put it right.
