Rock Island, IL
Attic Insulation in Rock Island, IL
Attic spray foam or blown-in upgrades that actually stop the heat loss.
Why Rock Island homes need attic insulation
Rock Island's older homes often have attic floor insulation that's been disturbed by decades of wiring runs, HVAC retrofits, and rodent traffic. Your contractor will tear out and replace when needed, air-seal aggressively, and blow to R-49 or R-60. Broadway Historic District and Highland Park homes need this work badly.
Your attic is where most homes lose 30-40% of their heating dollars. Old fiberglass batts have R-values on paper but they sit on top of a sea of air leaks: top plates, can-light cans, plumbing stacks, attic hatches. Adding more fiberglass on top does nothing about the air movement underneath.
Your contractor will fix attics two ways. Option A: air-seal the attic floor and add R-49 to R-60 of blown-in cellulose or fiberglass on top — best for vented attics with HVAC in the basement. Option B: spray open-cell foam directly to the underside of the roof deck — best when HVAC, ductwork, or plumbing runs through the attic.
Neighborhoods we serve in Rock Island
Longview Park area (older housing stock, rim joist and attic work common), Rock Island Arsenal adjacent neighborhoods (established homes), Milan Road corridor (mix of residential ages), and 11th Street corridor (dense older residential).
What's included
- • Pre-job photos and a written scope (which option, what depth, what R-value)
- • Full air-seal pass: every penetration foamed (top plates, cans, stacks, wires)
- • Attic hatch weather-stripped and insulated
- • Bath fan and dryer venting verified to discharge outside, not into the attic
- • Blown-in to spec depth with depth markers left in place, OR open-cell foam to roof deck
- • Post-job inspection and photo report
Other services available in Rock Island
Attic Insulation FAQ
How much attic insulation do I need in Iowa or Illinois?+
Current code in IECC Climate Zone 5 (all of the QC) is R-49 in attics. We typically install R-49 to R-60 to leave headroom for future settling. If we're going spray foam to the roof deck, we install to roughly R-30 of closed-cell or R-38 of open-cell.
Do I need to remove old fiberglass first?+
Usually no — if the existing batts are dry, rodent-free, and laying flat, we air-seal under and around them and blow new insulation right on top. A contractor will only tear out when there's water damage, rodent contamination, or vermiculite (which we then handle as hazmat).
How long does an attic job take?+
Most QC attics are a one-day job: 4-8 hours including masking, air-sealing, and blowing. Larger or cut-up attics can run into a second day.
Will new insulation make my upstairs rooms more comfortable?+
Yes, dramatically. The single biggest comfort complaint we hear is 'the upstairs is 10 degrees hotter than the thermostat in summer.' An air-sealed, properly insulated attic fixes that within a day.
Quad Cities service area
attic insulation is also available in nearby Quad Cities communities:
See our full spray foam insulation contractors hub for the complete service area.
Ready to stop wasting money on heating bills?
Get a free, no-pressure spray foam estimate from a local Bettendorf crew.