Trusted Radiant Barrier Installation for New Braunfels Homeowners
Radiant barrier installation in New Braunfels typically costs $1,800-$4,200 for a full attic, depending on square footage and whether your attic floor needs air sealing first. Most homes in the Hill Country corridor see attic temperatures drop 20-35 degrees after installation, with payback periods running 5-8 years at current CPS Energy and GVEC rates. We’re Topside Attic Insulation New Braunfels, and we’ve sealed and insulated over 9,000 homes since 2016, every one starting with a written price and ending with a documented record.
New Braunfels sits at a tricky intersection for attic heat gain. Our summers bring sustained 100-degree days that bake asphalt shingles and transfer that energy straight through your roof deck. Homes in Vintage Oaks, Copper Ridge, and the older neighborhoods off Seguin Avenue often have attic temperatures exceeding 140 degrees in July, forcing HVAC systems to run 30-40% longer than necessary. We’ve measured it. The blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing - often reveals that unsealed attics in this market are hemorrhaging both air and money.
Our crews are background-checked and uniformed, and a live person answers our phones 24/7 at (830) 243-6352. Same-day appointments are available for most New Braunfels addresses when you call before noon. Wes Okafor has built this operation on a simple premise: document everything, promise in writing, and never start work without the homeowner holding a flat price in their hand.
What Our Radiant Barrier Installation Service Includes
Attic Radiant Barrier
An attic radiant barrier is a reflective surface, typically aluminum-faced, installed to block radiant heat transfer from your roof deck to your living space. In New Braunfels, where summer roof deck temperatures regularly hit 160-180 degrees, this matters more than in cooler climates. We install attic radiant barriers after completing air sealing of top plates, can lights, and penetrations - never before. Blowing insulation over an unsealed attic floor traps heat and moisture while doing nothing to stop conditioned air from escaping. Our crews document the sealing work with photos, then install the barrier with proper clearances to maintain attic ventilation paths required by local code.
Radiant Barrier Foil
Radiant barrier foil is the most common material type, a reinforced aluminum sheet with a kraft paper or woven scrim backing for durability during installation. We source foil products from Owens Corning and Johns Manville, among others, selecting the appropriate weight and tear resistance for your attic’s accessibility and framing spacing. In Cibolo and New Braunfels homes built between 2015 and 2025 - a significant portion of our market - we often find truss designs with limited crawl space that demand lighter, more flexible foil products. Every roll is measured and cut on-site; we don’t pre-cut in the shop and hope it fits. The Haven Standard requires it: flat price, written scope, written warranty before anyone lifts a tool.
Radiant Barrier Roof Deck
Radiant barrier roof deck application means attaching the reflective material directly to the underside of your roof sheathing, either during new construction or as a retrofit in accessible attics. This method is more labor-intensive than attic floor installation but provides superior performance in ventilated attics because it intercepts heat before it enters the attic volume at all. We’ve completed roof deck applications in Canyon Lake-area homes where steep pitches and cathedral ceilings make floor installation impractical. The work requires proper staple patterns - typically 4-6 inches on center at seams - and attention to electrical clearances that our field supervisors verify before signing off. Your documented photo record will show every section.
Radiant Barrier & Ventilation
Radiant barrier performance depends entirely on adequate attic ventilation; without it, trapped heat will eventually conduct through the barrier and into your living space. We assess existing soffit, ridge, and gable ventilation before recommending any radiant barrier product, and we’ll tell you directly if your attic needs additional vents first. In New Braunfels, where humidity averages 65-75% in summer months, poor ventilation combined with radiant barrier installation can create condensation problems that damage roof decking. Our energy audits include ventilation calculations using the 1:300 rule - one square foot of net free vent area per 300 square feet of attic floor - and we document whether your home meets it. If it doesn’t, we quote the ventilation work separately with the same written-price guarantee.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Radiant Barrier Installation
We’ve worked extensively with Owens Corning radiant barrier products, including their LP TechShield roof sheathing with integrated radiant barrier and their foil roll stock for retrofit applications. Their LP TechShield panels are common in new construction throughout Comal and Guadalupe counties, and we know the fastening patterns and seam taping that maintain the product’s limited warranty. For homeowners in New Braunfels with existing TechShield that has degraded or been damaged during roof replacement, we can assess whether repair or supplemental foil installation is the more cost-effective path.
Johns Manville supplies our heavier-duty foil and woven products, particularly for commercial-grade applications and residential attics with difficult access where tear resistance matters. Their AP Foil-Faced insulation boards also serve as combined radiant barrier and insulation in certain cathedral ceiling retrofits we’ve completed near Cibolo. We also source from GreenFiber when a hybrid approach - radiant barrier combined with blown-in cellulose - makes sense for the home’s thermal envelope and the homeowner’s budget. Whether you have Owens Corning, Johns Manville, GreenFiber, or any other make currently in your attic, we can assess its condition and recommend the appropriate next step. No proprietary lock-in, no brand exclusivity claims.
Before
AfterSigns You Need Radiant Barrier Installation Right Now
- Your upstairs rooms are 10-15 degrees hotter than downstairs in summer. This temperature stratification is the signature of excessive radiant heat gain through your roof deck. We’ve measured 145-degree attic floors in New Braunfels homes where the second floor was essentially unlivable after 2 PM. The HVAC runs constantly but can’t overcome the thermal load pouring down from above.
- Your electric bill spikes $150-$300 in July and August compared to spring months. In the New Braunfels market, with CPS Energy rates running 11-14 cents per kWh for typical residential tiers, excessive attic heat gain shows up directly in your summer billing. If your usage pattern looks like a ski slope - low in April, peak in August, low again in October - radiant heat is the likely culprit.
- Your asphalt shingles are failing prematurely, especially on south- and west-facing slopes. Excessive attic heat accelerates shingle degradation by keeping the underside of the decking hot 24 hours a day. We’ve replaced radiant barriers in Timberwood Park homes where the previous installer blocked ridge ventilation, creating oven conditions that voided the shingle warranty. Proper installation prevents this; improper installation causes it.
- You can feel heat radiating from your ceiling on summer afternoons. Place your hand on a second-floor ceiling at 4 PM in July. If it’s warm to the touch, your ceiling is acting as a radiator, re-emitting heat that has passed through inadequate or missing radiant barrier. This isn’t subjective; it’s measurable with an infrared camera, which we bring to every estimate.
- Your ductwork runs through an unconditioned attic and the supply air feels lukewarm at distant vents. Attic ductwork in 140-degree environments loses 15-25% of cooling capacity before the air reaches your rooms. Radiant barrier reduces the attic temperature surrounding those ducts, improving delivered capacity without replacing the HVAC system. We’ve documented this with before-and-after temperature readings at supply registers.
Our Radiant Barrier Installation Process - Step by Step
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Schedule your free estimate with written price guarantee. Call (830) 243-6352 and a live person will answer, 24/7. We’ll confirm your address in New Braunfels or surrounding areas, ask about your home’s age, square footage, and specific comfort complaints, and schedule a site visit. Under Haven Standard Clause 1, you’ll receive a flat price, written scope, and written warranty before any work starts - no exceptions since 2016.
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On-site assessment with blower-door test and thermal imaging. Our technician arrives in a marked vehicle, uniformed, with a text notification when they’re 15 minutes out. We conduct a blower-door test to quantify air leakage, then thermal-image the attic to identify hot spots, insulation gaps, and moisture issues. In New Braunfels, we regularly find unsealed top plates and recessed can lights that must be addressed before radiant barrier installation. You’ll receive the blower-door number - say, 3,800 CFM50 - and we’ll explain what it means for your home.
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Air sealing of attic floor penetrations, completed first. We seal top plates, wire penetrations, plumbing stacks, can lights with rated covers, and any other leakage paths using appropriate materials - fire-rated foam, metal flashing, or high-temperature sealants as the application demands. This step is non-negotiable. We have refused jobs where homeowners asked us to skip it; the Haven Standard doesn’t allow insulation over unsealed leaks. The crew documents every sealed location with photos.
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Radiant barrier installation with proper clearances and fastening. We install your selected radiant barrier product with manufacturer-specified staple patterns, maintaining required air gaps and avoiding contact with electrical components. Roof deck applications get verified clearances at ridge vents; floor applications get proper overlap at seams. The crew supervisor checks every bay with a flashlight before calling the job complete.
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Final blower-door test, documentation delivery, and walkthrough. We run the blower door again - you might see that 3,800 CFM50 drop to 2,400 CFM50, a 37% reduction in air leakage. Your documented photo record, before-and-after blower-door readings, and completed warranty paperwork are delivered before we leave. The 365-Day Done Right Promise is now in effect. If it’s not done right, we make it right.
How Much Does Radiant Barrier Installation Cost in New Braunfels?
A typical attic radiant barrier installation in New Braunfels runs $1,800-$3,400 for homes between 1,800 and 3,000 square feet, assuming standard attic access and no structural modifications. Roof deck applications in the same size range typically fall between $2,800-$4,200 due to the increased labor of working overhead and the tighter clearances required. Homes larger than 3,500 square feet, or those with complex rooflines common in newer developments like Meyer Ranch or River Chase, may extend toward the upper end of these ranges.
Several factors move the price within these brackets. Attic accessibility is the biggest variable - a 12/12 pitch with 24-inch truss spacing takes longer than a 4/12 walkable attic. The condition of existing insulation matters too; if we need to remove degraded or contaminated material before air sealing, that’s additional labor and disposal. Electrical hazards - knob-and-tube wiring, unprotected junction boxes - must be addressed or worked around safely. And ventilation upgrades, if needed to prevent moisture problems, are quoted separately with the same upfront pricing.
To avoid overpaying, get competing quotes in writing and bring them to us for a Free Second Opinion. We’ll read them with you line by line. Some New Braunfels homeowners have shown us quotes that omitted air sealing entirely, or that specified radiant barrier stapled directly to insulation (ineffective, as it eliminates the required air gap). Others have been quoted proprietary products at 40% markups over equivalent commodity materials. Our written price includes the specified scope, the documented photo record, and the warranty - no add-ons after the fact.
Call (830) 243-6352 for your exact quote. Estimates are free, and the price we write is the price you pay.
Radiant Barrier Installation Near New Braunfels - Our Service Area
We serve New Braunfels proper and the full surrounding corridor, typically arriving same-day for calls placed before noon. Our crews are regularly in Cibolo for newer subdivisions with radiant barrier retrofits, Seguin for historic home upgrades, and throughout Schertz, Selma, Universal City, Canyon Lake, Live Oak, Converse, Bulverde, Windcrest, and Timberwood Park. Response times to Canyon Lake and Bulverde may extend to next-morning depending on crew routing. Every visit, regardless of distance, includes the documented photo record and written scope under the Haven Standard.
Serving New Braunfels, TX - Our Local Coverage Area
We’re based in the New Braunfels area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Radiant Barrier Installation in New Braunfels
Radiant barrier installation is the process of adding a reflective surface to your attic to block radiant heat transfer from your roof deck into your living space. In New Braunfels, where summer roof temperatures regularly exceed 160 degrees, this reflective surface can reduce attic heat gain by 20-40% depending on installation quality and ventilation. The barrier works by reflecting infrared radiation rather than absorbing it, unlike traditional insulation which slows conductive heat flow. We install radiant barrier only after completing air sealing of your attic floor, as required by the Haven Standard.
Most residential radiant barrier installations in New Braunfels are completed in one day, with larger or more complex jobs occasionally extending to a second day. A typical 2,400-square-foot home with standard attic access takes 6-8 hours including the mandatory air sealing prep work. Roof deck applications add 2-3 hours due to the overhead work and additional safety protocols. We’ll give you a specific time estimate in your written scope before work starts. Call (830) 243-6352 to schedule - estimates are free.
Radiant barrier installation in New Braunfels typically costs $1,800-$4,200 depending on application type, home size, and attic accessibility. Attic floor installations for homes under 3,000 square feet generally fall in the $1,800-$3,400 range, while roof deck applications run $2,800-$4,200. These prices include air sealing prep work, materials, installation, documentation, and the 365-Day Done Right Promise. We don’t offer discounts for skipping the air sealing; it’s built into every quote because it’s built into every job. Call (830) 243-6352 for your written price.
Yes, we service and install Owens Corning radiant barrier products including LP TechShield integrated sheathing and their foil roll stock for retrofit applications. We’ve worked with these products in hundreds of New Braunfels-area homes and understand the fastening patterns, seam requirements, and warranty conditions. We also install Johns Manville and GreenFiber radiant barrier products, and we work with any existing brand currently in your attic. No proprietary lock-in, no brand exclusivity - we select the appropriate product for your specific attic conditions and budget.
We answer calls 24/7 and can typically schedule next-day or same-day service for urgent situations, though true emergencies in radiant barrier work are rare. More commonly, “urgent” means an HVAC failure during a heat wave where excessive attic heat gain is contributing to system overload, or a roof leak that has damaged existing radiant barrier and requires immediate assessment. We’ll prioritize these calls and dispatch a technician to evaluate whether temporary measures or full installation are warranted. Call (830) 243-6352 any time; a live person will answer.
Every radiant barrier installation is backed by our 365-Day Done Right Promise - if it’s not done right, we make it right - plus the manufacturer’s material warranty where applicable. The Haven Standard requires that your written warranty, like your written price and written scope, is delivered before work starts. Material warranties from Owens Corning and Johns Manville typically run 20 years for foil products when installed to manufacturer specifications, which we verify and document. Our labor warranty covers installation quality for one year, and we don’t charge for warranty calls related to our workmanship.
Clear a path to your attic access and remove any stored items you need from the attic space before our crew arrives; we’ll need full access to all bays and the attic floor. Ensure we have access to electrical outlets for our tools and lighting, and let us know about any known hazards - wasp nests, unstable flooring, live electrical work - when you schedule. Pets should be secured away from the work area. We’ll bring drop cloths, protective gear, and documentation equipment. You don’t need to be home for the entire installation, though we prefer a brief walkthrough at completion to review the photo record and blower-door results. Call (830) 243-6352 to schedule - we’ll send a preparation checklist with your confirmation.
Schedule Your Radiant Barrier Installation Service in New Braunfels Today
Call (830) 243-6352 now and speak with a live person, 24/7. We’ll schedule your free estimate, conduct the blower-door assessment, and deliver your written price before any work starts. Same-day appointments available for most New Braunfels addresses when you call before noon. Your documented photo record, before-and-after performance numbers, and 365-Day Done Right Promise come standard on every job. No obligation, no pressure, no surprises.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving New Braunfels since 2016.