Is a radiant barrier worth it in the Inland Empire?
By the Silver Lining Restoration team · · 4 min read
The short answer: In most Inland Empire homes, yes. A radiant barrier is a reflective layer under the roof that bounces the sun's radiant heat back out before it bakes the attic. It works best in hot, sunny climates with long summers, and it does a different job from insulation, so the two are often installed together.
How does a radiant barrier work?
Your roof sits in the sun all day and gets very hot. That heat radiates down into the attic, and the attic passes it on to the ceilings below. A radiant barrier is a sheet of reflective foil fixed under the roof deck that reflects much of that radiant heat back up and out.
It's the same idea as a car windshield shade, only it lives in your attic and nobody has to wrestle it into place every afternoon.
Is a radiant barrier the same as insulation?
No. Insulation slows heat moving through it. A radiant barrier reflects radiant heat so less of it arrives in the first place. In a hot attic you want both: the barrier turns down the heat, the insulation holds the line.
If your existing insulation is thin, flattened or dirty, it is usually worth removing it and starting fresh at the same time. One of our customers had their old attic insulation removed and a radiant barrier installed in a single job, and the crew hauled every bit of old material away.
When does a radiant barrier make the most sense?
Radiant barriers pay off where the sun does the most damage. Signs your attic is a good candidate:
- Upstairs rooms stay hot well into the evening
- The AC runs for hours after sunset
- Your attic has ducts running through it
- The roof gets full sun most of the day
What happens on installation day?
The crew arrives prepared, works in the attic, fixes the barrier to the underside of the roof, and cleans up after itself. If old insulation is being removed, that comes out first and leaves with the crew. You get a written price, with options, before any work starts.
Quick questions
Does a radiant barrier work in winter?
A radiant barrier's main benefit is reflecting summer heat. In mild Inland Empire winters, insulation does most of the work of keeping heat in.
Can a radiant barrier be added to an existing attic?
Yes. Radiant barriers are commonly fixed to the underside of the roof in existing homes without replacing the roof.
Does Silver Lining install radiant barriers?
Yes. Silver Lining installs radiant barriers across Riverside and the Inland Empire, often alongside attic insulation removal and replacement.
Where to go from here
If this sounded like your house, the next step is a free in-home estimate. Or read more about: