Radiant barrier insulation upgrades your attic's ability to block radiant heat, which can mean a more comfortable home and lower energy costs. In Floresville, where long South Texas summers push attic temperatures past 140 degrees, radiant barrier insulation can help reduce heat moving from the roof into the rooms below.
Radiant barrier tackles heat in a way conventional attic insulation can't. Blown-in insulation is built to increase R-value and slow conductive heat transfer, while radiant barrier reflects heat before it has a chance to build up in the attic at all. Larger homes throughout Wilson County tend to see the best outcomes when both are installed together.
Green Energy of San Antonio can inspect your attic, review your current insulation levels, check attic ventilation, and recommend the right solution for your home.
Green Energy Radiant Barrier™ is backed by a 25-year warranty.
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Most radiant barriers go in the attic beneath the roof deck, run along the rafters, and do one job: bounce the sun's radiant energy back out before it ever has a chance to soak into the attic and work its way down into your living space.
That's a different mechanism than blown-in insulation, which raises R-value and slows conductive heat transfer between the attic and the rooms below it. The radiant barrier doesn't compete with that process; it targets radiant heat gain coming straight off the roofline instead.
Wilson County's long, hot growing season means Floresville attics take on heat for months at a stretch, so cutting down on radiant heat transfer tends to pay off here. Homeowners often notice a cooler house, a less overworked HVAC system, and energy bills that are easier to predict month to month.
Learn more about how radiant barriers work.
Left unprotected, your roof absorbs solar heat all day long. That heat passes through the roof decking and radiates straight into the attic, where it can then move into the living space below and force your air conditioner to work harder than it should.
A radiant barrier interrupts that process. Rather than waiting for heat to build up and slowly conduct into the rooms below, as traditional insulation does, it reflects a large share of that heat back out before it ever settles into the attic. For this to work, the reflective side has to face an open attic air space, which is what allows it to cut summer heat gain and make the whole home more comfortable.
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Radiant Barrier works in both directions. In the hot months, it reflects radiant heat away from your living space. When temperatures drop, it helps hold interior infrared heat inside instead of letting it escape into the attic, so your indoor temperature stays more even no matter the season.
That matters most in the parts of a Floresville home that run hotter than the rest, think additions built over open attic space, upstairs rooms, or anywhere that gets heavy sun exposure. Cutting down on attic heat transfer in those spots takes real pressure off your cooling system while making the whole house easier to live in.
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Radiant Barriers are built with aluminum for reliable, long-term performance. Aluminum is highly reflective and holds up well against the heat, humidity, and seasonal swings that Texas attics see year after year, making it a dependable material for attic insulation in this climate.
That kind of durability counts for a lot in Texas attics, where high heat, humidity, and constant seasonal swings put insulation to the test year after year.
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A radiant barrier doesn't replace your current attic insulation; it works alongside it. Blown-in insulation and radiant barrier tackle two different forms of heat transfer, so installing one on top of the other gives your attic a more complete defense system rather than swapping one for the other.
Blown-in insulation slows conductive heat. The radiant barrier reflects radiant heat. Combined, they reduce overall attic heat, strengthen thermal performance near the ceiling line, and make the whole home more comfortable.
That said, if your attic insulation is low, settled, uneven, or damaged, a radiant barrier alone may not be enough. Green Energy of San Antonio can assess both and tell you exactly what your home needs.
Learn more about insulation options for San Antonio homes.
Before you size a solar system, it's worth shrinking your home's energy demand first. Radiant barrier insulation is one of the easiest ways to do that, since it cuts down on the attic heat your cooling system has to fight in the first place. A more efficient home simply needs less solar to cover its usage, which means a smaller, less expensive system. Green Energy of San Antonio can help Floresville homeowners get there through radiant barrier, attic insulation, replacement windows, and other upgrades, all before you ever install a single panel. Learn more about how to improve home energy efficiency before switching to solar.
Financing options are available for radiant barrier and window projects, including 0% interest for 2 years, so upgrading your home's comfort and efficiency doesn't mean covering the full cost upfront.
We are very pleased with the radiant barrier we had Green Energy install in our attic. We have definitely noticed a difference in the closets that the attics are connected too. We had an issue with the upstairs AC unit after install and Green Energy responded immediately even though it was after 8pm. The issue was resolved quickly and efficiently. Personal and responsive, professional service. The value will continue to tally up as the years go by. Thank you to the Green Energy team!
We had a mid-grade radiant barrier installed and also had some insulation blown in over our garage, which has never had any the entire time that we have lived in this house. They did an excellent job and I can definitely notice a difference in how much less hot it gets in our garage now. It’s still pretty toasty but not hot enough to bake a cake out there anymore!! We are VERY satisfied with the work that we had done, and would definitely recommend Green Energy to anyone!!! 😁 👍
Radiant Barrier. After getting quotes for this service we found Green Energy at the Home and Garden show one year. We decided to go with them for the radiant barrier because of their quality product, professionalism and commitment to great work! Thank you Green Energy!
Mr. Ramos and his grandson came out to talk to us about a radiant barrier and were very professional and courteous. Really appreciated them giving us options that were in our best interest and not theirs. Needless to say, we were very satisfied with the installation and the product. It’s been three months and we haBe already saved over $200!! I would definitely recommended homeowners to give Mr. Ramos a call if your looking into radiant barriers for your home.
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Six years ago Green Energy installed my radiant barrier, blown-in insulation, and a couple solar powered attic exhaust fans. They did a terrific job and I am still super happy with the outcome. I combined all of this work with replacing my single pane windows with double pane. Immediately my monthly average electric bill dropped from about $425 to about $220 and has remained in that range ever since!
Last week I called them regarding a warranty question. The phone was answered immediately and I received nothing short of superior support. I cannot express exactly how happy I am with Green Energy, even six years after installation!
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I had Green Energy of San Antonio come in and install Radiant Barrier, Soffit vents, and install a ridge vent on my house. They did an excellent job! My house was instantly cooler, and my HVAC system actually turned off. It usually runs non stop during the day because of the temperature outside. Thank you so much for everything!
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Green Energy of San Antonio installs radiant barrier insulation for homeowners across Floresville and Wilson County, from Old Town Floresville to newer communities like The Villages at River Bend, as well as larger rural properties throughout the area. Wherever your home sits, our radiant barrier solutions are designed to cut attic heat and improve energy efficiency.
No two attics are exactly alike. Insulation levels, sun exposure, and cooling needs all vary from home to home, so our team evaluates your specific setup before recommending a radiant barrier solution that actually fits your property.
Reflecting radiant heat before it spreads through the attic takes real pressure off your HVAC system and helps keep energy costs down over time. Beyond installing radiant barrier, Green Energy of San Antonio also handles related upgrades like attic insulation and window replacement.
Green Energy of San Antonio serves Floresville and nearby communities throughout South Texas and the San Antonio area, including:
For many Floresville homeowners, yes. Wilson County summers are long and hot, and larger rural homes often have bigger attics that take on more heat. Paired with proper attic insulation, a radiant barrier can meaningfully cut cooling costs and improve comfort.
Every home is different, but homeowners in hot climates typically save up to 35% a year on energy bills with radiant barrier insulation. Larger Floresville properties with bigger attics and roof lines tend to see the strongest results.
Learn more here: Does Radiant Barrier Really Work for Cutting Energy Costs?
Yes. Many homes outside Floresville's city limits have aging insulation and large, exposed roof lines. A radiant barrier can be added alongside existing insulation to reduce heat gain without a full attic overhaul.
No. The radiant barrier is not known to damage shingles when installed correctly. Any slight increase in shingle temperature is minor compared to what Texas summer sun already produces.
We don't recommend it. Proper air space and placement are critical to performance, and even small installation mistakes can significantly reduce how well a radiant barrier works.
Learn more about the benefits of working with Green Energy of SA
Green Energy of San Antonio installs radiant barrier insulation for Floresville homeowners looking to cut attic heat, improve comfort, and lower their energy bills. It layers right on top of your existing attic insulation, giving your home a more complete, efficient setup without starting from scratch.
If summer turns your home into an oven or your energy bills keep climbing higher than they should, radiant barrier could be the fix. Our team will walk through your attic, current insulation, ventilation, and roof exposure to figure out exactly what your home needs.
Contact Green Energy of San Antonio today to learn more or request your free estimate.
“Enjoy cooler summers and warmer winters. That’s the GESA promise.”
