Johns Manville Radiant Barrier Installation: The Burbank Owner’s Guide
We install Johns Manville radiant barrier in Burbank attics for $1.75 to $2.85 per square foot installed, with most homes between 1,200 and 2,000 square feet of attic floor landing in the $2,100 to $5,700 range. Same-day installation is available on most single-story homes, and a live person answers the phone 24/7 at (747) 837-5834 to confirm your slot. Most Burbank homeowners discover their radiant barrier has failed the same way: an electric bill that climbs every July and August, or they finally crawl up to check the attic and find foil that’s torn, sagging, or coated in a fine layer of dust that’s killed its reflectivity.
We’re an independent insulation contractor, not affiliated with Johns Manville, but we install and match their radiant barrier products regularly because they hold up to Southern California attic conditions better than most. And when it fails, it fails in predictable ways we can spot in about ten minutes.
Which Johns Manville Models This Applies To
Johns Manville sells radiant barrier under two main lines: the single-sided foil product (typically sold in 4-foot by 125-foot rolls for roof rafter applications) and their double-sided perforated foil, which gets stapled to the underside of rafters or laid over existing attic floor insulation. The perforated version matters in Burbank specifically, because it lets moisture escape rather than trapping condensation against your insulation. A non-perforated foil laid flat on attic insulation in our climate becomes a moisture trap, which we’ve had to remediate more than once in older Magnolia Park homes with less than ideal attic ventilation.
To identify what you have, look for the JM logo printed on the foil edge every few feet, or measure the roll width. If you’re holding a loose scrap and the logo is gone, the perforated product has visible pin-prick holes in a grid pattern; the single-sided version does not. Aftermarket equivalents exist from Reflectix and a few others, but for Johns Manville attics we recommend staying with the JM product when it’s going over existing JM-faced batt insulation. The adhesives and vapor characteristics are engineered to work together, and mixing brands in a tight Burbank attic with low clearance is where we’ve seen condensation problems start.
Signs Your Johns Manville Radiant Barrier Installation Is Failing
- Dust-buried foil with no shine left. Radiant barrier works by reflecting heat, not absorbing it. Once a layer of Burbank dust settles on the foil, reflectivity drops well under 50% and you’re paying for dead weight. We see this constantly in homes near the 5 freeway corridor where fine particulate settles in attics fast.
- Torn or sagging sections hanging between rafters. Staples pull out over time, especially in the hot-dry cycle of Burbank summers. Sagging foil creates air pockets that trap heat instead of rejecting it, and it also blocks access for any other attic work you need done.
- Your attic feels like a furnace at 6 p.m. in August. A working radiant barrier keeps attic temps roughly 20 to 30 degrees cooler at peak. If the attic is still radiating heat at dinnertime, the barrier isn’t doing its job.
- Upstairs rooms run 8 to 12 degrees hotter than downstairs. This is the telltale symptom in two-story Burbank homes. The attic barrier failed, the ceiling insulation is absorbing heat all day, and by late afternoon that heat is radiating down into the bedrooms.
- You found foil scraps during an attic inspection. If pieces are flaking off or shredded, the original install was likely done with the wrong fastener (regular staples instead of the rust-resistant ones), or the foil was pulled too tight against roof decking with no air gap. Both fail faster than they should.
Replacement Cost & What’s Included
In Burbank, expect these installed prices:
- Attic floor radiant barrier (laid over insulation): $1.75 to $2.25 per sq ft installed
- Rafter-mounted radiant barrier (stapled under roof deck): $2.25 to $2.85 per sq ft installed
- Combination remove-old + install-new: add $0.50 to $0.75 per sq ft for haul-away and disposal
- Typical 1,500 sq ft attic, full replacement: $3,000 to $4,600 all-in
What drives the range is access. A Burbank attic with a pull-down ladder, open truss spacing, and clear decking runs toward the bottom. An attic with a 22-inch scuttle hole, low-pitch roof, and existing debris runs higher. Every quote includes removal of the failed material, new Johns Manville radiant barrier, proper fasteners, and a clean workspace. All work is backed by our 90-Day Done Right Promise: if it’s not done right, we make it right. And our $50 Off Any Repair Over $250 discount applies to every radiant barrier replacement we quote.
DIY or Call Us?
Stapling foil to rafters doesn’t sound hard, and for a flat, open attic it isn’t. But radiant barrier is only about 30% of what’s actually failing in most Burbank attics. The bigger problem is usually air leakage around penetrations, and the barrier just makes the attic hot enough for you to notice it. A homeowner can safely check whether the foil is torn, sagging, or dust-covered, but the installation itself means working on your knees in 130-degree heat, navigating around wiring, and stapling overhead for hours. It’s not dangerous like electrical work, but it’s miserable, and a bad install with the wrong staples or no air gap fails again in five years.
Call (747) 837-5834 and we’ll send a background-checked technician to take a look. Most jobs are completed in a single visit.
FAQs
In Burbank’s dry heat, a correctly installed Johns Manville radiant barrier typically lasts 15 to 20 years before losing measurable reflectivity. The foil itself can last longer, but dust accumulation and staple failure usually end its useful life first. Call (747) 837-5834 to have a technician confirm whether yours is still doing its job.
Small tears under 6 inches can be patched with foil tape, but once more than 20% of the installed area is sagging, torn, or dust-buried, replacement is usually cheaper than repair because the remaining foil is close to the end of its life anyway. We’ll tell you which one you actually need after a quick look.
Most Burbank single-story homes are done in 4 to 6 hours, including removing the old material and cleaning the workspace. Two-story homes or attics with tight access run closer to a full day.
Yes. Our trucks carry both the single-sided and perforated Johns Manville foil in standard roll widths, along with the rust-resistant staples and foil tape needed for a proper install. In most cases we can complete the job on the first visit without ordering anything.
Written by Neil Ashford, Owner, Warmline Insulation Co. at Warmline Insulation Co., serving Burbank and nearby areas.