Owens Corning Radiant Barrier Installation: The New Braunfels Owner’s Guide
Most Owens Corning radiant barrier installations in New Braunfels run between $1,800 and $3,400 for a typical 1,800-2,400 square foot attic, including materials, labor, and our pre- and post-install blower-door test. We stock Owens Corning-compatible radiant barrier rolls and rigid board products on our trucks, and we can usually schedule installation within 48 hours. Homeowners usually notice the problem when their upstairs rooms won’t cool below 78 degrees even after the AC runs all afternoon, or when their summer electric bills jump 30-40% compared to the previous year.
Which Owens Corning Models This Applies To
Owens Corning manufactures radiant barrier products under several product lines, and matching the right material to your existing system matters for both performance and warranty coverage. The most common we encounter in New Braunfels attics are the Owens Corning Raft-R-Mate rigid extruded polystyrene boards with factory-laminated radiant barrier foil (typically 23.75″ × 48″ × 0.5″), the AtticCat system’s optional radiant barrier overlay kits, and the standalone Owens Corning FOILFACED rolls in 500 and 1,000 square foot coverage sizes.
To identify what you have, check the foil face for printed model numbers - Raft-R-Mate boards stamp “OC RR-23″ or similar near one corner; FOILFACED rolls carry a lot number and R-value rating on the Kraft-paper backing edge. Measure the width carefully: the 23.75″ boards are designed for 24″ on-center trusses common in post-2005 New Braunfels construction, while older homes off Seguin Avenue or in the Original Town district often have 16″ or 19.2” spacing that requires custom cutting or a different product selection entirely.
We source Owens Corning materials through standard distribution channels - we are an independent insulation contractor, not affiliated with Owens Corning - and we also stock Reflectix as a quality aftermarket alternative when the OEM product is back-ordered or when the homeowner wants a lower-cost solution for a rental property or short-term hold.
Signs Your Owens Corning Radiant Barrier Installation Is Failing
- Hot ceiling patches in upstairs rooms. The radiant barrier foil has torn, pulled away from fasteners, or developed gaps at the ridge line, allowing infrared heat to penetrate directly through the drywall below. In New Braunfels, this often shows first above west-facing rooms where attic temperatures peak near 140°F in July.
- AC runs continuously from 2 PM to sunset. A properly installed radiant barrier should reduce attic heat transfer by 20-30%; when performance drops, the thermal load overwhelms your system’s capacity. We measure this directly with our blower-door test and infrared camera during assessment.
- Foil facing that has dulled to gray or developed heavy oxidation. Owens Corning’s aluminum oxide coating degrades faster in high-humidity attics, and New Braunfels sees 70%+ relative humidity for months each year. Once the reflective surface drops below 0.75 emissivity, it’s doing cosmetic work, not thermal work.
- Visible sagging or bridging between trusses. Poor initial installation - often from crews who stapled every 24″ instead of 6-8″ on center - lets the material belly down into insulation below, creating contact that conducts heat rather than reflecting it. This is especially common in homes built during the 2019-2021 rush when inspection backlogs meant less oversight.
- Insulation below the barrier is compressed or discolored. When the radiant barrier fails, the fiberglass or cellulose underneath takes the full thermal load, accelerating its own degradation. We find this pattern repeatedly in Canyon Lake area homes where seasonal temperature swings are more extreme than in town.
Before
AfterReplacement Cost & What’s Included
Our installed pricing for Owens Corning radiant barrier replacement in New Braunfels breaks down as follows:
| Component | Price Range |
|---|---|
| Material (Owens Corning FOILFACED or Raft-R-Mate, per sq ft) | $0.85 - $1.40 |
| Attic air sealing (top plates, penetrations, can lights) - prerequisite | $450 - $890 |
| Radiant barrier installation labor | $1.10 - $1.65 per sq ft |
| Blower-door test (pre- and post-) | Included |
| Documented Photo Record | Included |
Most complete replacements in a 2,000 square foot attic fall between $2,200 and $3,200 total. Smaller partial repairs - a torn section above a single room, for instance - can run as low as $680. The range depends on attic accessibility (scissor trusses vs. conventional), whether we need to remove degraded existing material first, and how much air sealing the floor requires before we hang new barrier. We deliver a written price before any work starts, and that price includes our 365-Day Done Right Promise.
DIY or Call Us?
There’s no high-tension danger with radiant barrier like there is with garage door springs or gas lines, but there are genuine ways to waste money and create problems. A homeowner can safely check attic temperature with a probe thermometer, photograph any visible foil damage, and verify their AC filter is clean - all useful information to share when you call.
Where DIY goes wrong: stapling radiant barrier directly to the attic floor over existing insulation (it becomes a conductor, not a reflector), leaving gaps at the ridge that defeat the purpose, or skipping air sealing and wondering why the house still leaks conditioned air at 4,200 CFM50. We’ve also found homeowners who installed the foil side down, which traps moisture against the drywall and breeds mold in humid New Braunfels summers. If your attic has active knob-and-tube wiring or vermiculite insulation, stop and call - those require specific handling protocols. For everything else, call (830) 243-6352 and we’ll walk through what you’re seeing before we schedule.
FAQs
In our climate, a properly installed Owens Corning radiant barrier typically performs for 15-25 years before reflective degradation becomes significant. Attics with poor ventilation or chronic humidity - common in older homes near the Guadalupe River corridor - may see useful life closer to 12-15 years. Call (830) 243-6352 for an assessment if your barrier is over a decade old; estimates are free.
Small tears under two feet can be patched with matching foil tape, but this is usually a short-term fix. Once the material has sagged, oxidized, or pulled from multiple fasteners, the labor to patch exceeds the labor to replace, and the result looks like a quilt rather than a continuous thermal barrier. We quote both options when we assess. Call (830) 243-6352 for an exact recommendation.
Most residential radiant barrier replacements in New Braunfels take one full day for a two-person crew, assuming the attic is accessible and we’ve completed air sealing beforehand. Larger homes or those requiring material removal first may extend to a second day. We schedule air sealing and barrier installation as separate, priced steps so you’re never paying for crew downtime.
We carry Owens Corning FOILFACED rolls in 500 and 1,000 square foot sizes, plus Reflectix as an alternative, on every radiant barrier truck. Raft-R-Mate rigid boards we order to spec after measuring your truss spacing, typically with 24-48 hour delivery. We don’t start any job until materials are on-site and verified - Haven Standard Clause 1.
Wes Okafor grew up on the South Side of Chicago, trained at Dawson Technical Institute, and has spent nearly two decades sealing attics across Central Texas. He and his crew have worked from the River Road corridor near the Guadalupe out to Canyon Lake, and they’ve learned that stack-effect air leakage in older slab homes around New Braunfels tends to run higher than homeowners expect. The number on the blower-door printout tells you what the insulation did. Everything else is just talk.
Written by Wes Okafor, Owner, Topside Attic Insulation New Braunfels at Topside Attic Insulation New Braunfels, serving New Braunfels and nearby areas.