Owens Corning Spray Foam Insulation in Round Rock: What to Know First
We provide independent Owens Corning spray foam insulation in Round Rock, typically completing most jobs same-day or next-day with a written price before any work starts. Most residential spray foam jobs in Round Rock homes run between $1,800 and $4,200 depending on cavity depth, foam type, and whether we’re treating a roof deck, rim joist, or garage ceiling. Call (737) 259-7528 for a free estimate with a written scope and warranty delivered before anyone lifts a tool.
This page is for Owens Corning owners in Round Rock neighborhoods like Behrens Ranch, Fern Bluff, and Stone Oak who need spray foam insulation installed correctly - meaning sealed first, then insulated, with blower-door numbers to prove it. We are not affiliated with or authorized by Owens Corning; we are an independent service provider who sources materials from Owens Corning and other major manufacturers without proprietary lock-in.
How Owens Corning Products Fail - and How We Fix Them
- Owens Corning FOAMULAR NGX 250 in rim joists - the rigid foam board shrinks at the perimeter when butted against stone or brick foundations common in 1980s Round Rock builds, creating thermal bypasses we find with infrared cameras. We remove the compromised sections, seal the rim joist cavity with closed-cell spray foam to the full depth, and document the before-and-after air leakage with blower-door readings.
- Owens Corning ProPink L77 loose-fill over unsealed top plates - the blown-in fiberglass performs poorly when conditioned air escapes through gaps at wall-to-ceiling transitions, a problem we see repeatedly in two-story homes near Old Settlers Boulevard. We pull back the existing material, seal every top plate and penetration with foam, then reinstall or upgrade to spray foam where the roof deck configuration allows.
- Owens Corning EnergyComplete gaps at can lights and duct chases - this hybrid sealant-and-foam system degrades where it meets hot Round Rock attic air, becoming brittle and pulling away from electrical boxes after 6-10 years. We strip the failed material, reseal with closed-cell spray foam rated for the temperature range, and verify with a post-install blower-door test.
- Owens Corning AttiCat system in kneewalls and bonus rooms - the blown-in application settles away from sloped roof decks in the heat-cycling climate of Central Texas, leaving voids that show up as hot spots in summer. We dense-pack these cavities with open-cell spray foam to maintain continuous contact with the sheathing, or recommend closed-cell where moisture drive is a concern.
- Owens Corning PINK Next Gen Fiberglass batts in garage ceilings - the friction-fit batts fall or sag within 2-3 years when garage temperatures swing between 40°F winter nights and 120°F summer afternoons typical of Williamson County. We remove the failed batts, air-seal the garage-to-house barrier with closed-cell spray foam, and treat the ceiling as a conditioned buffer zone with proper thermal and ignition barriers.
Our Owens Corning Spray Foam Insulation Process

- 1
Call and scheduling - a live person answers 24/7. We book a diagnostic visit with a written price commitment: no work starts without a flat price, scope, and warranty in writing.
- 2
Blower-door test and infrared survey - we pressurize the house to measure CFM50 leakage, then use thermal imaging to locate where Owens Corning materials are underperforming due to air movement, not R-value deficiency.
- 3
Air sealing before insulation - Seal the leaks first. The insulation has nowhere to go until you do. We foam-seal top plates, can lights, duct chases, and rim joists before any spray foam goes in.
- 4
Spray foam installation with material selection - we specify open-cell (half-pound density, R-3.6 per inch) for roof decks and closed-cell (two-pound density, R-6 per inch) for rim joists and below-grade work, sourcing from Owens Corning or alternatives like Johns Manville or Demilec if the job warrants.
- 5
Post-install blower-door test and documentation - we run the pressurization test again, publish the before-and-after numbers, and deliver a Documented Photo Record with the written warranty under our 365-Day Done Right Promise.
- 6
Cleanup and written closeout - the crew vacuums the work area, removes protective sheeting, and leaves the homeowner with the scope, warranty, photo record, and blower-door report.
What Owens Corning Spray Foam Insulation Costs in Round Rock
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Rim joist (closed-cell, full depth) | $1,800 - $2,800 | Linear footage, foundation access, existing degradation |
| Garage ceiling (open or closed-cell) | $2,200 - $3,600 | Square footage, ignition barrier requirement, duct relocation |
| Roof deck (open-cell, vented to unvented conversion) | $2,800 - $4,200 | Cavity depth, sheathing condition, need for vapor retarder |
| Attic floor/air sealing + spray foam hybrid | $3,200 - $4,800 | Extent of existing material removal, top plate accessibility |
Prices include material, labor, air sealing, post-install blower-door test, and Documented Photo Record. We also offer a Free Second Opinion on any written estimate from another contractor. Call (737) 259-7528 for an exact quote - estimates are free, and the written price comes before any work starts.
Why Round Rock Homeowners Call Topside Attic Insulation Round Rock for Owens Corning Work

We’ve sealed and insulated over 9,000 homes since 2016, every one with a written price before work started and a documented record when the crew left. In Round Rock specifically, we’ve learned which attic configurations hide bypasses - the split-levels near Brushy Creek with dropped soffits that bypass the thermal boundary, the 1990s builds in Fern Bluff with scuttle holes that leak like open windows.
Wes Okafor and our crew don’t guess. We sequence every job: blower-door test, air sealing, insulation, post-test. The 365-Day Done Right Promise applies to all work, and we source materials from Owens Corning, Reflectix, and other major brands with no proprietary lock-in. Background-checked, uniformed technicians. Calls answered by a live person, 24/7.
FAQs
No - when installed by a qualified contractor following manufacturer specifications, spray foam does not void Owens Corning product warranties. We document every installation with photos and specifications so warranty claims remain straightforward. Call (737) 259-7528 if you need help navigating a specific warranty question.
We source from Owens Corning and other major manufacturers including Johns Manville, Demilec, and Icynene, selecting the material that fits the cavity condition and your budget. We do not claim exclusive or preferred status with any brand, and we’ll tell you exactly what we’re spraying before we start.
Repair is cheaper short-term if the existing material is dry and the air barrier is intact; replacement with spray foam pays back faster when the current insulation is compromised by air leakage, moisture, or settlement. We assess with a blower-door test and infrared survey, then give you both options in writing. Call (737) 259-7528 for a free evaluation.
Most jobs are completed same-day or next-day once the written scope is approved. Rim joist and garage ceiling work typically takes 4-6 hours; roof deck conversions may require two days depending on cavity depth and access. We do not manufacture urgency - we schedule when you need it and arrive on time.
You receive a written scope, written warranty under the 365-Day Done Right Promise, before-and-after blower-door readings on applicable jobs, and a Documented Photo Record of the completed work. This is standard on every visit, not available on request.
Written by Wes Okafor, Owner, Topside Attic Insulation Round Rock at Topside Attic Insulation Round Rock, serving Round Rock and nearby areas.