Why Van Nuys Homeowners Choose Reflectix Insulation
Thermal Insulation Co provides Van Nuys Reflectix service across the neighborhood, from attic radiant barrier retrofits in 1950s stucco tract homes to foil-faced roof deck installs on newer builds. We’re not a Reflectix dealer and we don’t claim manufacturer authorization, but we work with their double-bubble and single-bubble foil products every week in San Fernando Valley attics. What sets our Reflectix work apart in Van Nuys is that we understand the air-space detailing this material actually depends on, and we fix the installation mistakes that make it underperform. Call (855) 382-3451 for a free estimate.
Why Trust Thermal Insulation Co for Your Reflectix Insulation?
Reflectix foil insulation is a product that rewards correct installation and punishes shortcuts. A roll of double-bubble foil stapled to rafters without an air gap will not do what the spec sheet promises. Ruben Castellano, our owner at Thermal Insulation Co, learned building science fundamentals at East Los Angeles College before spending nearly two decades diagnosing why attics and rooms stay hot after previous contractors have already been through them. That diagnostic habit matters in Van Nuys, where the difference between a Reflectix install that works and one that doesn’t is usually a half-inch air space and properly taped seams.
We’re an insulation-only contractor. We don’t do roofing on the side, we don’t do HVAC, and we don’t carry one brand because a distributor gave us a volume deal. We carry Reflectix because it fills a real role in a hot-climate attic strategy, and we carry seven other brands because no single product line solves every Van Nuys attic problem. That’s the honest way to work with this material. When Reflectix is the right call, we install it correctly with genuine foil and tape. When it isn’t, we’ll tell you that too.
Common Reflectix Insulation Problems We Fix in Van Nuys
We see the same Reflectix failure patterns repeated across Van Nuys attics, block after block in the postwar neighborhoods. Here are the ones we fix most often:
- Foil pressed flat against the roof sheathing. This is the single most common Reflectix mistake we find in Van Nuys. Reflectix works as a radiant barrier because of the air space on one side of the foil, typically the gap between the foil and the roof deck. When the double-bubble roll is stapled directly against the sheathing with no gap, the product loses most of its reflective performance and actually traps heat against the deck. We re-install the foil on the underside of rafters or purlins to re-establish that air space.
- Reflectix stapled directly over old fiberglass batts. In older Van Nuys attics with minimal original insulation, someone will often staple single-bubble foil flat over the top of kraft-faced batts. No air space, foil in contact with the paper facing, and the result is condensation forming on the foil surface in cooler months. The foil delaminates, the staples rust, and the whole assembly once again does nothing useful. We pull the failed run and re-install correctly or switch to a blown-in approach if the attic calls for it.
- Tape seams peeling in 140°F-plus attic heat. Van Nuys attics routinely exceed 140°F in July and August. Cheap tape, or Reflectix tape applied to a dusty rafter surface, will curl and release within a summer or two. Once the seams open, radiant heat pours straight through the gaps, and whatever benefit the barrier offered is gone. We use genuine Reflectix foil tape and clean the rafter surface before seaming.
- Bubble foil used as a vapor barrier in the wrong orientation. Reflectix double-bubble products have a Class A / Class 1 vapor retarder rating in certain configurations, but in a hot attic it is not a standalone vapor barrier for walls or ceilings. When it is installed in the wrong orientation or used to replace a proper vapor retarder in a wall cavity, moisture gets trapped against the wood framing. We correct the assembly and use the right product for the position.
- Crushed or compressed bubble core. In low-slope and walked attic spaces around Van Nuys, the bubble core of Reflectix gets compressed from foot traffic, storage, or careless re-roofing work. Crushed foil has no air space, and the radiant performance is gone. We replace the damaged runs rather than patch compromised material that will keep underperforming.
Reflectix Parts & Our Repair-vs-Replace Approach
When we install Reflectix in a Van Nuys attic, we use genuine Reflectix product: foil rolls, reflective foil tape, and the appropriate fasteners for the assembly. We do not substitute lookalike foil from an unknown mill. For the components around the Reflectix itself, such as air-sealing caulk, baffles, and ventilation elements, we use quality aftermarket products matched to the application. The Reflectix barrier itself performs based on its surface emittance and the air space we create, so that material has to be the real thing.
Our repair-versus-replace decision is straightforward. If the existing Reflectix is intact, the bubble core is not crushed, and the foil is not delaminating, we will re-detail it: pull loose staples, re-tape seams with genuine Reflectix tape, and correct the air space or mounting position. That saves the material cost and gets the attic performing. If the foil has delaminated or the bubble core is flattened, we recommend replacement. Patching a failed radiant barrier is throwing money at a material that has already lost its function. Call (855) 382-3451 and we’ll tell you which situation you’re in.
Our Reflectix Service Process – Step by Step
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Attic inspection and measurement. We document the existing assembly: rafter spacing, ventilation, any old batt or blown-in insulation, and the condition of any existing Reflectix. In Van Nuys attics we specifically check whether there is any air space between foil and deck, and whether the tape seams are still holding.
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Assembly correction and air-space planning. For radiant barrier work, we map out the mounting that will create the required air space. For roof deck installs during re-roofs, we coordinate with the roofer so the Reflectix goes in at the right stage of the job.
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Installation or re-detailing. We install genuine Reflectix rolls using the correct staple pattern for the product, seam every overlap with Reflectix foil tape, and add baffles where attic ventilation needs them. If existing material is salvageable, we re-tape, re-staple, and re-detail it.
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Verification. We check seam integrity, staple spacing, and air space before we leave the attic. In a Van Nuys summer attic, a bad seam will announce itself within weeks. We would rather catch it now than have you call us back in August.
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Warranty and follow-up. We stand behind our installation workmanship. The manufacturer honors their product warranty; we honor our labor. If a seam fails or a run sags within our workmanship window, we come back and fix it.
Reflectix Products We Service & Install in Van Nuys
We work with the full Reflectix radiant barrier line most commonly used in Van Nuys attics. That includes the Double Reflective Insulation Roll in 16-inch and 24-inch widths, the Single Reflective Insulation Roll for tighter rafter bays and knee walls, the Reflective Foil Tape for seaming, and the perforated and solid-deck radiant barrier products used in roof deck assemblies during re-roofs. We stock double-bubble rolls and foil tape locally for fast turnaround on attic retrofits, and we can order single-bubble and perforated products for specific jobs with a few days’ lead time.
We Also Service These Brands
Thermal Insulation Co installs insulation products from eight manufacturers: Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. That matters for your Reflectix project because sometimes the right answer for a Van Nuys attic is Reflectix for the radiant barrier and blown-in GreenFiber cellulose or Rockwool batts for the thermal insulation. We carry the full range so we can make that call honestly, not because we only have one product on the truck.
FAQs – Reflectix Insulation Service in Van Nuys
Yes. Reflectix is a radiant barrier and its performance depends on an air space adjacent to the foil face, typically between the foil and the roof deck. Without that gap, the product cannot reflect radiant heat effectively and the attic stays hot. A foil surface pressed directly against wood sheathing conducts heat rather than reflecting it. We establish the necessary air space when we install or correct Reflectix in Van Nuys attics.
No, not directly over the batts with the foil in contact with the insulation. That configuration creates a vapor and condensation problem at the interface and eliminates the air space the radiant barrier needs. If you want a radiant barrier plus thermal insulation, the correct assembly is Reflectix on the underside of rafters with an air gap, and the batts or blown-in insulation below it at the ceiling plane. Call (855) 382-3451 and we’ll look at your attic assembly before you spend anything.
Peeling tape is almost always either a surface-prep failure or heat failure. Reflectix foil tape must be applied to a clean, dry rafter surface, and dust or old adhesive residue will cause it to release. In Sherman Oaks Reflectix service and Van Nuys attics, temperatures over 140°F also defeat cheap substitutes and poorly bonded seams. We clean every surface before taping and use genuine Reflectix tape, which holds up to the heat when applied correctly.
No. A radiant barrier reduces radiant heat gain from the roof deck into the attic, but it does not replace the thermal insulation that resists conductive and convective heat transfer at the ceiling plane. In Van Nuys, the right assembly is usually both: Reflectix or another radiant barrier at the roof deck or rafter line, plus adequate R-38 or higher thermal insulation at the ceiling. We recommend the combination that fits your attic and your cooling bill.
Yes. The time to install a roof deck radiant barrier is when the old roof is stripped and the sheathing is exposed. We install Reflectix perforated or solid-deck radiant barrier over the sheathing before the new roofing material goes down. The perforated product allows moisture to pass so it does not trap vapor in the deck. In Reflectix service in Valley Glen and Van Nuys, where low-slope and flat roofs bake in the summer sun, a roof deck radiant barrier can meaningfully reduce heat gain into the conditioned space below. Call (855) 382-3451 if you’re planning a re-roof and want us coordinating with your roofer.
Cost depends on the scope: the square footage of the attic or roof deck, whether we are installing new Reflectix or re-detailing existing material, and what ventilation or thermal insulation work needs to happen alongside it. We provide a written line-item quote after an attic inspection so you know exactly what you are paying for. Call (855) 382-3451 for a free estimate.
Book Your Reflectix Service in Van Nuys, CA
If your Van Nuys attic has Reflectix that is not performing, or you’re planning a radiant barrier install, call Thermal Insulation Co at (855) 382-3451 for a free estimate. We also provide Reflectix repair in Encino. Ruben Castellano and our team will inspect your attic, explain what’s actually happening up there, and give you a straight answer on what it will take to make it right.
Written by Ruben Castellano, Owner at Thermal Insulation Co, serving Van Nuys and the San Fernando Valley.