Owens Corning Attic Insulation: The Houston Owner’s Guide
We install Owens Corning attic insulation throughout Houston at $1.35 to $2.10 per square foot for blown-in fiberglass, with most homes running $1,800 to $3,400 total depending on square footage and current R-value. Same-week scheduling is standard, and in many cases we can be in your attic within 48 hours. Most Houston homeowners discover their Owens Corning insulation has failed when the upstairs rooms won’t hold a temperature, the AC runs longer than it used to, or the July electric bill arrives maybe 40 percent higher than last year.
Attic insulation doesn’t break like a dishwasher. It degrades. In Houston specifically, the combination of 90-plus percent humidity from June through September and attics that routinely hit 140 degrees compresses fiberglass batts, saturates blown-in material, and invites the kind of moisture problems that quietly eat R-value for years before anyone notices. What met R-38 when it went in ten years ago might be performing at R-19 right now. We see it in Meyerland, Bellaire, Kingwood, and Clear Lake every single week. The material is still up there. It just stopped doing its job.
If you have Owens Corning product in your attic and suspect it’s no longer holding up, this page covers what fails, what replacement costs, and how we handle the swap.
Which Owens Corning Products This Applies To
Most Houston homes built between 1995 and 2015 with Owens Corning insulation got either pink fiberglass batts (R-30 or R-38) or LooseFill blown-in fiberglass. The batts are the recognizable pink rolls that sit between the joists. The blown-in material is the loose, fluffy pink or white fill that settles across the attic floor. Both work on the same principle, and both fail the same way in Houston: compression, moisture, and settling.
If you’re trying to identify what’s up there: the batt product carries a printed kraft-paper facing with the Owens Corning name and R-value stamp. LooseFill is harder to ID by eye, but if your home was insulated in the last 15 to 20 years and the material is pink, fine-textured fiberglass, it’s almost certainly Owens Corning. The attic hatch or the garage wall near the water heater are the two most common places builders left the original insulation certification card. That card lists the exact product and the R-value installed at construction.
One compatibility note that matters: Owens Corning R-30 batts are 9.5 inches thick. R-38 batts are 12 inches. If you have 2×8 joists and someone installed R-38 batts, they compressed the material when they put the decking or storage boards over it. Compressed fiberglass loses roughly half its stated R-value. We flag this constantly on inspections in Pearland and Sugar Land homes where attic storage platforms were added over the insulation. For blown-in material, R-38 requires 10.25 inches settled depth, and in Houston we recommend targeting R-49 if you’re redoing it anyway. It’s a small incremental cost and it makes a measurable difference in July and August.
Alden Insulation Houston is an independent service provider. We are not affiliated with Owens Corning, but we install their products as one of eight brands we offer. That gives you a real choice, and it means we’ll tell you honestly if another material fits your attic better.
Signs Your Owens Corning Attic Insulation Is Failing
- Upstairs rooms won’t hold temperature. The attic insulation stops resisting heat transfer, so the second floor runs 6 to 10 degrees warmer than the thermostat setting. The AC compensates by running longer cycles, which shows up on the bill before you notice the comfort change.
- You can see bare spots from the attic hatch. Blown-in insulation settles unevenly, especially near roof vents and the attic entrance. If you can see the back of the ceiling drywall through the fill anywhere, that cavity is basically uninsulated.
- Insulation looks matted down or damp. Houston humidity infiltrates through soffit vents and roof leaks. Wet fiberglass loses all effective R-value, and it holds that moisture against the ceiling framing, which is how you get mold in the attic before you ever see it in the living space.
- Energy bills climbing without a new home load. Same square footage, same thermostat setting, same AC unit, and the bill is up 25 to 50 percent year over year. In our experience, for homes with 15-plus-year-old Owens Corning material, degraded attic insulation is the most common culprit after a failing AC condenser.
- Rodent or pest traffic in the attic. Squirrels and roof rats tear up fiberglass batts for nesting. We see this in The Woodlands and along the bayous more than anywhere else. Tunnels and nesting voids cut the effective R-value dramatically, and the material has to be removed and replaced, not just fluffed back.
Key Takeaways: Owens Corning attic insulation in Houston typically lasts 10 to 18 years before meaningful degradation, and the failure is almost never sudden. It’s a slow loss of R-value caused by humidity, settling, compression, or pests. The fix is removal and replacement, not a patch job.
Replacement Cost & What’s Included
Most Owens Corning attic insulation replacement jobs in Houston run between $1,800 and $3,400, which covers a typical 1,500 to 2,200 square foot attic. Smaller jobs with good attic access and no existing damage can fall below that range. Older homes that need insulation removal before new material goes in land at the top of it. The biggest cost drivers are square footage, current R-value versus target R-value, and whether we’re doing full removal or re-covering the existing material.
| Scope | Typical Houston Price Range |
|---|---|
| Blown-in fiberglass, R-38, 1,200 sq ft attic | $1,620 – $2,520 |
| Blown-in fiberglass, R-49, 1,800 sq ft attic | $2,430 – $3,780 |
| Full removal plus R-49 re-blow, 2,000 sq ft attic | $3,400 – $5,200 |
Every quote is a written line-item price before work starts. That number covers material, labor, and the commitment that we don’t revise it at the door. We carry Owens Corning LooseFill on the truck, plus Johns Manville, Knauf, and CertainTeed equivalents, so if you want to price-compare materials on your own, you can. The labor number stays the same regardless of which brand we go with.
The installation carries the 365-Day Done Right Promise: if the insulation we install fails within a year, in writing, we come back and make it right at no charge. That includes a second visit at no cost if the issue falls inside the guarantee window. That’s The Garrison Standard, and it applies to every Houston job we run.
DIY or Call Us?
What you can safely do yourself: inspect the attic, measure settled depth of blown-in material, look for damp spots around roof penetrations, and photograph what you see. That’s real information, and it’s exactly what we’d do first on an inspection. Heat and fiberglass particles are the two hazards. A Houston attic in August hits 130-plus degrees, and working conditions like that without proper ventilation gear is how homeowners end up with heat exhaustion. Fiberglass is a skin and lung irritant. Disturbing old material without a respirator and protective suit is not a job you want to improvise.
Blowing in new insulation to a consistent depth, avoiding the soffit vents, and working around can lights and bath fan housings is where DIY goes wrong. Block a soffit vent and you create a moisture condition that costs more than the insulation job to correct. The job pays for itself when it’s done square, and it costs double when it isn’t. Call (806) 581-1010 and we’ll give you a written number before anything comes off the truck.
FAQs
Plan on 10 to 18 years of effective performance in Houston’s climate. Humidity, attic heat, and settling all chip away at R-value. Fiberglass doesn’t rot like cellulose, but that doesn’t mean it holds its stated R-rating indefinitely. If your material is older than 15 years, an inspection is the only way to know whether it’s performing anywhere near the original spec. Call (806) 581-1010 and we’ll inspect it and give you a straight answer.
You can top off blown-in insulation in some cases: adding new material over settled, dry, undamaged fiberglass is a legitimate upgrade. But you cannot “repair” wet, moldy, pest-damaged, or compressed material back to its original R-value. Those conditions require removal and replacement. We’ll tell you which situation you have before we quote anything.
A standard Houston attic runs 4 to 7 hours for a two-person crew. That includes any air sealing, which we do as part of the insulating job, and full cleanup of the access area. Larger homes or full removal jobs can take up to two days. You’ll know the exact schedule when we quote.
We stock Owens Corning LooseFill fiberglass on our trucks, along with Johns Manville, Knauf, and CertainTeed equivalents. If you want a specific Owens Corning product or R-value, we’ll make sure it’s on the schedule before we arrive. The material is available to us same-week in basically every part of Houston, so availability isn’t a holdup. We also stock Reflectix radiant barrier for Houston homes where attic heat gain is the bigger problem.
Good insulation doesn’t announce itself: you notice it on your utility bill. If your Owens Corning material is past its useful life, the fastest way to fix it is a written quote and a scheduled crew that shows up inside the window. Call (806) 581-1010 for a free estimate. The person who answers is a real human being, and the number you approve is the number on the invoice.
Written by Bryce Holloway, Owner, Alden Insulation Houston at Alden Insulation Houston, serving Houston and nearby areas.