CertainTeed Radiant Barrier Installation: The San Antonio Owner’s Guide
We stock CertainTeed-compatible radiant barrier and install it in San Antonio attics, with most jobs running $1,100 to $2,600 depending on square footage, rafter configuration, and whether we’re stapling fresh foil over existing batts or doing a full attic refresh. Same-day and next-day installs are common, and our trucks carry the standard 48-inch and 64-inch CertainTeed roll widths so we’re not making you wait on a distributor. Most San Antonio homeowners call us after walking into an attic that feels like a kiln in August, or after noticing their upstairs AC runs nonstop while the downstairs cools fine. That’s usually the radiant barrier showing its age, or a previous install that used the wrong attachment method for our humidity. Either way, you’ll get a written price before we touch anything.
Which CertainTeed Models This Applies To
CertainTeed makes radiant barrier under a few names that have shifted over the years. The current product line we install most often is CertainTeed Solar Control radiant barrier, which comes in perforated and non-perforated versions. The perforated style lets attic moisture pass through, which matters a lot in San Antonio’s hot-humid summer cycles. If your attic traps moisture against the foil, you get condensation on the roof deck and eventually staining or mold on the sheathing. The older CertainTeed product many homes still have is called Enerfoil. It works the same way but the foil layer is thinner, and after fifteen-plus Texas summers it tends to delaminate from its backing. When we walk an attic, we check the printed label on the exposed edge or measure roll width to confirm what’s up there. Then we match the replacement to your roof pitch and rafter spacing, not just whatever is on the shelf at the supply house. As an independent San Antonio insulation contractor, we’re not affiliated with CertainTeed, but we use their radiant barrier where it’s the best fit, and we stock their perforated rolls alongside a solid aftermarket option from Reflectix for owners who want a comparable alternative at a lower material cost.
Signs Your CertainTeed Radiant Barrier Installation Is Failing
- Upstairs stays 8 to 12 degrees hotter than downstairs in late afternoon. Radiant barrier’s whole job is reflecting radiated heat from the roof deck before it reaches your insulation or living space. When the foil degrades or tears, that heat punches straight through.
- Foil is sagging or hanging loose between rafters. In San Antonio’s humidity, the staples and battens used in older installs corrode over time. Once the foil drops away from the roof deck, the air gap that makes it work disappears, and it’s just shiny plastic in your attic.
- White or gray dust on the attic floor near the roofline. That’s the foil delaminating from its backing. CertainTeed Enerfoil from the 2000s does this after prolonged heat cycling, and once it starts, the reflectivity drops fast.
- AC runs longer but delivers the same indoor temperature. Your system is working harder to offset heat gain the barrier used to stop. San Antonio electric bills in July and August will show it before you feel it.
- Water stains on roof decking directly beneath the foil. Non-perforated radiant barrier installed in a humid attic traps moisture against the wood. This is a big one in San Antonio where outdoor humidity rarely dips below 60% for half the year.
Replacement Cost & What’s Included
For a typical single-story San Antonio home with 1,200 to 1,800 square feet of attic floor space, installed CertainTeed radiant barrier runs $1,100 to $2,600. Material alone is usually 40 to 55 cents per square foot for CertainTeed perforated rolls at current San Antonio supply pricing, but labor, attachment method, and attic access drive the installed number. A simple open attic with standard 24-inch rafter spacing lands at the low end. A low-slope roof with tight clearances, or an attic with existing batt insulation we have to work around, lands higher. The price we write includes the foil, staples or batten strips, seam tape, full removal of failed barrier if needed, and a clean work area. Every job gets our 365-Day Done Right Promise in writing, a written guarantee on the install, and a free second visit if anything isn’t right. Chase Whitaker has been in enough San Antonio attics to know exactly what your roof pitch does to install time, so our quotes don’t have mystery line items.
DIY or Call Us?
You can safely check the condition of your radiant barrier by climbing into the attic with a flashlight and looking for sagging, tearing, or delamination. That’s a fifteen-minute job and worth doing. Installing new barrier yourself is another story. Stapling foil overhead while balancing on rafters in a 130-degree San Antonio attic, working around electrical wiring and HVAC ducts, is miserable and genuinely risky. One slip through the drywall between rafters means a hospital trip. And getting the air gap right matters more than people think: foil laid flat on insulation does almost nothing, and we’ve pulled out plenty of failed DIY installs where the homeowner spent a weekend and a few hundred dollars to make their attic slightly shinier. If you want it done once, call us at (254) 279-0971 and we’ll give you a written price before any work starts.
FAQs
A properly installed CertainTeed perforated radiant barrier lasts 15 to 25 years in our climate, though the foil’s reflectivity starts declining gradually around year ten. Poorly installed or non-perforated barrier in a humid attic can fail much sooner. Call (254) 279-0971 and we’ll tell you honestly whether yours needs replacement or has years left.
Yes, if the damage is limited to a few torn sections or detached edges, we can patch and re-secure just those areas. But once the foil is delaminating from its backing across a wide span, patching becomes a losing game and full replacement costs less per square foot than spot repairs.
Most San Antonio homes are done in four to six hours for a single-story attic, and we can usually schedule you within a day or two. Two-story homes or attics with low clearance might stretch to a full day. Call (254) 279-0971 for a live estimate and a real arrival time.
Yes, we carry CertainTeed perforated radiant barrier in the standard 48-inch and 64-inch widths, plus Reflectix as an aftermarket option. If your attic needs a custom width or a specific roll length, we can have it from our San Antonio supplier within one business day.
Get a Written Price Today
A comfortable attic isn’t a luxury in San Antonio, it’s just a house that works the way it should. If your CertainTeed radiant barrier is sagging, delaminating, or just not doing its job anymore, call Laurel Attic Insulation San Antonio at (254) 279-0971. We’ll inspect what’s up there, tell you straight whether it needs repair or replacement, and put a written price in your hand before anything starts. Book in a tap, get a live arrival time, see before-and-after photos, and pay from a link when the job is done.
Written by Chase Whitaker, Owner, Laurel Attic Insulation San Antonio at Laurel Attic Insulation San Antonio, serving San Antonio and nearby areas.