Owens Corning Radiant Barrier Installation: The Boerne Owner’s Guide
Most Owens Corning radiant barrier installations in Boerne run between $1,800 and $3,400 for a typical 2,000-2,800 square foot attic, including material, labor, and our pre-install air sealing. We stock Owens Corning AtticCat radiant barrier and foil-faced rigid board products on our trucks, and we can usually inspect and quote same-day if you call before noon. Homeowners usually notice the problem when their upstairs rooms won’t cool below 78°F even after sunset, or when their July electric bill jumps $80-$120 over the previous year.
Which Owens Corning Models This Applies To
Owens Corning makes two radiant barrier product lines you’ll see in Boerne attics. The AtticCat PINK Foil Radiant Barrier is a perforated, double-sided aluminum foil roll designed to lay over existing insulation or staple to rafters. The FOAMULAR NGX F-250 Foil-Faced is a rigid polyiso board, 1/2-inch to 2-inch thickness, used in cathedral ceilings or knee-wall applications where rolled product won’t hold shape.
To identify what you have, check the printed edge tape or stamp on the foil face. AtticCat rolls carry an OC batch code starting with “AB-” followed by a date stamp. FOAMULAR boards have a pink core with silver foil on one or both sides and a stamped density rating. The gotcha in Hill Country homes: some 2018-2021 builds near Fair Oaks Ranch used FOAMULAR F-250 in 1-inch thickness on 24-inch rafter spacing, and that spacing flexes enough in our summer heat that the boards can sag at the seams if they weren’t foamed at the edges.
We’re an independent service provider, not affiliated with Owens Corning. We source their products through authorized distribution, and we also stock Reflectix double-bubble barrier for homeowners who want a lower-cost alternative in ventilated attics where foil emissivity matters more than R-value.
Signs Your Owens Corning Radiant Barrier Installation Is Failing
- Hot spots on your ceiling at mid-day. This means the radiant barrier has torn, shifted, or lost its reflective surface, so infrared radiation from the roof deck is penetrating directly into the insulation below. In Boerne, where roof surface temperatures regularly hit 160°F in August, even a 10% gap in coverage can raise attic floor temperature by 15°F.
- Dust accumulation on the foil face turning it dull gray. Owens Corning’s perforated AtticCat allows some attic ventilation through, but over 5-7 years in our limestone-dust environment, the reflective surface degrades. Once emissivity drops below 0.10, the barrier is doing little more than occupying space.
- Insulation compression or moisture staining beneath the barrier. This usually means the barrier was installed upside-down, with the perforations blocked, or that it was laid directly over insulation without the required 3/4-inch minimum air gap. Trapped condensation in a Boerne attic with 75% summer humidity rots the barrier from below.
- Visible sagging or detachment at rafter staples. The Hill Country’s temperature swings, 40°F some winter mornings to 140°F attic afternoons, cause expansion cycling. Owens Corning specifies galvanized staples every 6 inches on rafter runs; we regularly find original installs with 12-inch spacing that failed within 4 years.
- HVAC ducts in the attic sweating or losing cooling capacity. When radiant barrier fails, attic air temperature rises 20-30°F. Your ductwork, especially if it’s R-6 flex in a 130°F attic, becomes a heat sink. The system runs longer, pressures drop, and supply air reaches your registers 8-12°F warmer than designed.
Replacement Cost & What’s Included
| Scope | Price Range in Boerne |
|---|---|
| AtticCat roll replacement, 1,500-2,000 sq ft attic (rafter-stapled) | $1,800-$2,600 |
| AtticCat roll replacement, 2,000-3,000 sq ft (including over-insulation lay) | $2,400-$3,400 |
| FOAMULAR F-250 rigid board, cathedral or knee-wall (per 100 sq ft) | $850-$1,200 |
| Air sealing package (top plates, can lights, penetrations) - required before barrier | $400-$900 |
What drives the range: attic accessibility (scuttle vs. pull-down stairs vs. cut-in), existing barrier removal and disposal, whether we need to relocate stored items, and the condition of the air gap space. Every quote includes the written scope, the written warranty, and our 365-Day Done Right Promise. We don’t start until you have the price in hand.
DIY or Call Us?
There’s nothing dangerous about handling Owens Corning radiant barrier itself, no springs, no electrical, no gas. The hazard is what you find once you’re in the attic. We’ve seen homeowners in Boerne step through ceiling drywall near the hallway scuttle, disturb active wasp nests in eaves, or dislodge asbestos-containing vermiculite while pulling old barrier.
What you can safely check from below: shine a flashlight through your attic access and look for obvious tears, sagging, or gray/dull foil. If you see those, the barrier is compromised. What goes wrong with DIY installs: insufficient air gap (barrier must not touch insulation or roof deck), upside-down perforation placement, and skipping the air sealing that should happen first. We seal the envelope first. Then fill it. That’s not a slogan, it’s the sequence that makes the blower-door number move.
Call (830) 529-7780 if you want us to inspect, measure, and give you a written price before any work starts.
FAQs
In our climate, a properly installed AtticCat barrier maintains effective reflectivity for 10-15 years before dust degradation becomes significant. FOAMULAR rigid board lasts 20+ years structurally, but the foil face can delaminate if moisture gets behind it. We inspect both during our energy audits and tell you whether cleaning or replacement is the better value. Call (830) 529-7780 for a free estimate.
Small tears in rolled barrier can be patched with foil tape rated for 200°F, but the repair almost never matches the original reflectivity. If dust has dulled the surface or if staples have pulled through across multiple rafter bays, replacement is the cost-effective choice. We don’t sell partial fixes that leave you with a patchwork attic. Call (830) 529-7780 and we’ll show you what we found.
Most residential replacements in Boerne take one crew day, 6-8 hours, assuming we’ve already completed the prerequisite air sealing. Cathedral ceiling FOAMULAR work runs longer, 1-2 days, because we’re working in confined spaces and foaming each seam. You get a text when the crew is on the way, and a Documented Photo Record before they leave. Call (830) 529-7780 to schedule.
Yes. We carry AtticCat rolls in 48-inch and 60-inch widths, and FOAMULAR F-250 in 1/2-inch, 1-inch, and 2-inch thickness. For same-day installs, we need to inspect first to confirm quantities and check for compatibility issues like the 24-inch rafter spacing problem common in some Boerne subdivisions. Call (830) 529-7780 before noon for same-day availability.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.