Owens Corning Spray Foam Insulation in Boerne: What to Know First
We provide independent Owens Corning spray foam insulation in Boerne, with most jobs completed same-day and a written price delivered before any work starts. Open-cell and closed-cell installations in Boerne’s Hill Country climate require different vapor-strategy approaches than the same products in Houston or Dallas, and our crews account for that in the scope. Most homeowners with an Owens Corning system receive a flat written price within an hour of our site visit, and the 365-Day Done Right Promise applies to every job we close.
This page is for Boerne homeowners who already have Owens Corning insulation in place and need service, upgrade, or replacement - or who are comparing Owens Corning against other spray foam options for a new install. Call (830) 529-7780 to schedule a free estimate or a free second opinion on any written quote you’ve already received.
How Owens Corning Products Fail - and How We Fix Them
- Owens Corning Foamular NGX (closed-cell) shrinkage at rim joists in older Boerne homes. The NGX line uses a reduced-GWP blowing agent that can contract 3-5% during cure in the low-humidity conditions common to Kendall County winters. We’ve found this most often in 1980s and 1990s ranch homes near River Road Park, where the rim joist sits above a vented crawl space. We cut back the failed foam, seal the joint with Prosoco R-Guard Joint & Seam Filler, then re-apply in two lifts with a flash-and-bond approach that controls exotherm.
- Owens Corning ProPink (open-cell) over-spray onto roof deck fasteners in cathedral ceilings. Open-cell’s expansion pressure can warp the thin-gauge screws used in some Owens Corning roof deck applications, particularly where the installer missed the recommended 1-inch setback from metal. Our crews map fastener locations with a thermal imager before cutting, then hand-trim with a serrated blade rather than grinding, which preserves the fastener coating.
- Owens Corning AttiCat blown-in compatibility gaps where homeowners added spray foam later. The AttiCat system was designed for loose-fill cellulose or fiberglass, and we’ve seen cases in Boerne’s Cordillera Ranch area where a later spray foam contractor blew closed-cell directly against the AttiCat baffles without air-sealing first. Stack effect pulled conditioned air straight through the gap. We remove the incompatible foam, seal the top plates and penetrations with acoustic sealant, then reinstall with proper separation.
- Owens Corning EnergyComplete (spray foam sealant) degradation from UV exposure in garage ceiling applications. EnergyComplete is a one-component gun foam, not a full spray foam system, and Boerne homeowners sometimes find it used as a primary garage ceiling sealant where the installer skipped a proper two-component application. After two or three summers of garage-door-open UV exposure, it powders at the surface. We scrape to substrate, prime with a compatible contact adhesive, and apply closed-cell two-component foam at the specified 2-inch minimum for a Class II vapor retarder.
- Owens Corning FOAMULAR 150 (XPS board) delamination from spray foam substrate in hybrid assemblies. In hybrid jobs common to Boerne’s newer construction near Fair Oaks Ranch, a contractor laminated FOAMULAR 150 to an open-cell spray foam substrate with the wrong adhesive. The different expansion coefficients between XPS and open-cell caused the board to cup. We remove the assembly, re-foam with a compatible closed-cell base layer, then mechanically fasten the XPS with cap nails at 8 inches on center per the manufacturer’s fastening schedule.
Our Owens Corning Spray Foam Insulation Process
- 1
Call intake with a live person. We answer 24/7. You’ll describe the Owens Corning product line if you know it, the symptom, and the home’s age. We schedule a site visit, not a sales presentation.
- 2
Diagnostic visit with blower-door test. Our technician runs a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing. We photograph every condition we find, including any Owens Corning labeling still visible on the substrate.
- 3
Written price before any work starts. Under Haven Standard Clause 1, you receive a flat price, written scope, and written warranty before anyone lifts a tool. No exceptions. This includes our parts recommendation: OEM Owens Corning where it matters for warranty continuity, quality aftermarket where the specification is open.
- 4
Air sealing first, then insulation. Seal the envelope first. Then fill it. We complete all top-plate sealing, can-light boxing, and penetration work before any spray foam goes in. The blower-door test is repeated after sealing to document the improvement.
- 5
Spray foam installation with lift control. Open-cell or closed-cell, we monitor substrate temperature and ambient humidity - critical in Boerne’s spring swing conditions - and apply in controlled lifts to prevent shrinkage or off-ratio cure.
- 6
Final blower-door test and documented photo record. You receive printed before-and-after pressure readings in pascals, plus a photo record of every stage. The 365-Day Done Right Promise is in writing and starts the moment we leave.
What Owens Corning Spray Foam Insulation Costs in Boerne
Most Owens Corning spray foam insulation jobs in a Boerne home this size run between $2,800 and $6,400 for attic or roof deck work, and $1,200 to $2,800 for rim joist or garage ceiling applications. What moves the price:
- Square footage and thickness. R-38 in an attic floor requires a different depth than R-38 in a cathedral ceiling, and Owens Corning open-cell needs more thickness than closed-cell to hit the same R-value.
- Removal of existing incompatible material. Cutting out failed AttiCat, EnergyComplete, or a previous contractor’s foam adds $400 to $1,200 depending on access.
- Air sealing scope. A home with 4,200 CFM50 on the first blower-door test needs more sealing labor than one reading 2,800 - we quote this specifically, not as a mystery add-on.
- Roof deck vs. floor application. Roof deck work in Boerne’s summer heat requires earlier start times and more crew rotation, which affects labor scheduling.
Call (830) 529-7780 for an exact quote - estimates are free, and we provide a free second opinion on any written estimate you’ve already received.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for Owens Corning Work
We’ve sealed and insulated more than 9,000 homes since 2016, and the ones in Boerne keep us honest about humidity management. The Hill Country’s dry winters and sudden spring moisture events mean a spray foam job that works in San Antonio can fail here if the vapor strategy is wrong. Wes Okafor keeps a well-used copy of the ACCA Manual J on his truck for exactly these conversations.
Our crews are background-checked and uniformed, and we carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, GreenFiber, and Reflectix materials - no proprietary lock-in, so the specification drives the product, not the other way around. Every job closes with a documented photo record and, where applicable, printed blower-door numbers. The 365-Day Done Right Promise is in writing before we start. That’s Haven Standard.
FAQs
No - Owens Corning’s product warranty covers manufacturing defects regardless of who installs or services it, though their system warranties may require original-component compatibility. We document every part source and specification so you have a record if a claim arises. Call (830) 529-7780 and we’ll review your specific Owens Corning product line and warranty tier.
Same-day response is standard for active air-leak or insulation-failure calls, and our phones are answered by a live person 24/7. Most Boerne homeowners in The Heights, Menger Springs, or near Main Street get a technician on-site within four hours of calling. Call (830) 529-7780 to check current availability.
Repair is cheaper when the failure is isolated - less than 20% of the total area, no substrate moisture damage, and the original foam is still well-adhered. Replacement makes sense when we find widespread shrinkage, delamination, or an unsealed envelope beneath the foam that will compromise any new material. We quote both options when both are viable. Call (830) 529-7780 for a free estimate.
We stock common Owens Corning spray foam components and compatible aftermarket alternatives for the lines we see most in Boerne - FOAMULAR board, ProPink open-cell kits, and EnergyComplete sealant. Less common NGX formulations or specialty densities may require a two-day order. We’ll tell you during the intake call, not after we arrive.
Yes - R-value is a standardized measurement, and we can meet any Owens Corning specification with Johns Manville, Knauf, Icynene, or other compatible products. We note this in writing when we quote it, so your documentation is clear for resale or warranty transfer. Call (830) 529-7780 to discuss options.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.