Owens Corning Spray Foam Insulation in Schertz: What to Know First
We provide independent Owens Corning spray foam insulation in Schertz, typically completing residential jobs in one to two days with crews available for scheduling within a week. Most whole-home open-cell jobs in a home this size run between $4,200 and $7,800, while closed-cell applications for rim joists or garage ceilings fall between $1,800 and $3,400. We publish a written price before any work starts, always, and every job closes with a documented photo record and post-install blower-door reading where applicable. This page is for Owens Corning product owners in Schertz, including homes in the Sedona subdivision off FM 1518 and the older corridor near Schertz Parkway, who need spray foam insulation work done by technicians who understand the specific interaction between Owens Corning’s material specifications and our local climate. Call (830) 402-5240 for a free estimate or a free second opinion on any written estimate you’ve already received.
How Owens Corning Products Fail - and How We Fix Them
- FoamPro OC spray foam shrinkage in high-temperature attics. Owens Corning’s open-cell FoamPro line can pull away from rafter bays in attics that cycle above 130°F daily, which happens regularly in Schertz from June through September. We see this in homes built 2015-2019 where the foam was applied directly to roof decking without proper substrate preparation. Our fix: we cut back the separated foam, recondition the substrate with Owens Corning-approved primer, and reapply to current density specs, documenting the before-and-after adhesion test.
- PINK Next Gen Fiberglas batt compression at top plates. When Owens Corning batts are compressed against top plates to accommodate electrical runs, the effective R-value drops by 30-50% in that critical junction. This is common in Schertz’s production builds where speed beat precision. We remove the compromised batt, air-seal the top plate with closed-cell spray foam, then reinstall a properly cut batt or transition to blown-in where access demands it.
- AttiCat blown-in settling over unsealed can lights. Owens Corning’s AttiCat system performs to spec, but when it’s blown over non-IC-rated can lights in Schertz homes, the thermal bypass creates a melt zone that looks like equipment failure. We pull back the insulation, seal the fixture housings with fire-rated covers and closed-cell foam, then reinstall the AttiCat to proper depth with a depth-stick photo log.
- Closed-cell over-application in rim joists. Owens Corning’s closed-cell foam, when applied too thick in a single pass in rim joist applications, can trap exothermic heat and create adhesion failure or odor issues. We’ve found this in Schertz crawl spaces where the previous contractor chased speed over lift thickness. Our protocol: 1-inch lifts with proper cure time, measured with a laser gauge, never more than 2 inches per pass.
- WeatherLock Flex underlayment interaction with spray foam in conditioned attics. Owens Corning’s synthetic underlayment can off-gas when spray foam is applied to the roof deck above it in a hot Schertz attic, creating a bond-line failure that owners mistake for roof leak staining. We test the underlayment type before foam application and specify a thermal break or compatible primer when WeatherLock Flex is present.
Our Owens Corning Spray Foam Insulation Process

- 1
Pre-work blower-door test and thermal imaging. We pressurize the house to measure CFM50 baseline, then run a FLIR scan to map thermal bypasses. You get the numbers in writing before anyone enters the attic.
- 2
Written price and scope delivery. Under Haven Standard Clause 1, we deliver a flat price, written scope, and written warranty before any work starts. No exceptions.
- 3
Air sealing before insulation. We seal top plates, can lights, penetrations, and duct boots with appropriate materials. Seal the leaks first. Then insulate. The attic doesn’t care how thick the insulation is if the air is still moving through it.
- 4
Owens Corning material application to spec. We source from Owens Corning and other specified manufacturers, applying to OEM lift thickness and density requirements. For jobs where Owens Corning closed-cell is specified, we verify substrate temperature and humidity against their published application window.
- 5
Post-work verification and documentation. We run a second blower-door test, photograph depth sticks at randomized locations, and compile a thermal-imaging summary. You receive printed documentation before the crew leaves.
- 6
365-Day Done Right Promise activation. If the blower-door number doesn’t hold or the foam shows adhesion failure within a year, we make it right. The warranty is in writing, dated, and signed.
What Owens Corning Spray Foam Insulation Costs in Schertz
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Open-cell spray foam, full attic (1,800-2,400 sq ft home) | $4,200 - $7,800 | Existing insulation removal, roof deck vs. floor application, accessibility |
| Closed-cell spray foam, rim joist (typical crawl) | $1,800 - $3,400 | Crawl height, moisture remediation needed, linear footage |
| Closed-cell spray foam, garage ceiling | $2,400 - $4,600 | Garage size, ductwork in ceiling, fire separation requirements |
| Spray foam roof deck (conditioned attic conversion) | $5,800 - $11,000 | Roof pitch, sheathing condition, ventilation strategy |
| AttiCat blown-in over sealed attic floor | $2,100 - $3,900 | Square footage, desired R-value, air-sealing complexity |
Prices include material, labor, our air-sealing prep, and the documented photo record. We do not charge separately for the blower-door test on jobs where it’s applicable. Call (830) 402-5240 for an exact quote on your specific Owens Corning installation - estimates are free, and we provide free second opinions on any written estimate you’ve already received.
Why Schertz Homeowners Call Topside Attic Insulation Schertz 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 Schertz specifically, Wes Okafor and our crew have worked the corridor long enough to know which production builders used Owens Corning batts compressed at top plates and which roof pitches trap enough summer heat to stress foam adhesion. We’re not locked to any single manufacturer - we also source from Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, GreenFiber, and Reflectix - so if an Owens Corning specification isn’t the right solution for your assembly, we’ll say so and show you the alternative in writing. Calls are answered by a live person 24/7. Background-checked, uniformed technicians arrive on schedule with a text when they’re on the way. The 365-Day Done Right Promise applies to all completed work.
FAQs
It won’t void the warranty if the application follows Owens Corning’s published installation guidelines for substrate preparation, temperature, and compatibility with adjacent materials. As an independent Owens Corning service provider, we verify the specific product series in your assembly and apply to those specs, documenting the conditions so you have a record if a warranty question ever arises. Call (830) 402-5240 and we’ll review your existing materials against the application requirements.
Most residential jobs are scheduled within five to seven business days, with completion in one to two days depending on square footage and whether existing insulation removal is required. We don’t start work without a written price and signed scope, so the timeline includes a day for inspection and documentation delivery. If you have a hard deadline, mention it when you call - we’ll tell you honestly if we can meet it.
Repair makes sense when the existing material is dry, properly installed, and only compromised in isolated areas - we can spot-treat with compatible materials. Full removal and replacement is the right call when there’s widespread compression, moisture damage, or when we’re converting to a conditioned attic with spray foam on the roof deck. We make this recommendation after inspection, not before, and we put the reasoning in writing with photos so you can see what we saw.
We source Owens Corning materials directly when the job specifies them, and we also work with equivalent formulations from our other named manufacturers when the assembly or budget calls for it. We never use proprietary lock-in products that restrict your options. Every material going into your home is named in the written scope before work starts, with the manufacturer’s published R-value and density spec attached.
You receive a printed or digital packet containing: the original written scope and price, before-and-after blower-door readings where applicable, thermal imaging summary, depth-stick photo log with randomized location markers, material specification sheet, and the signed 365-Day Done Right Promise warranty. This is included on every job, not available on request - Haven Standard: Have it in writing.
Ready to get a written price for your Owens Corning spray foam insulation project? Call (830) 402-5240 today. We’ll schedule an inspection, run the blower-door test, and deliver your flat-price quote with no obligation. Free estimates. Free second opinions on any written estimate. Live person answers the phone, 24/7.
Written by Wes Okafor, Owner, Topside Attic Insulation Schertz at Topside Attic Insulation Schertz, serving Schertz and nearby areas.