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Wellco Radiant Barrier Aluminum Foil Reflective Insulation

Wellco Radiant Barrier Aluminum Foil Reflective Insulation

3.7· 9 ratings

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$48.74at Home DepotObserved at 3:05 PM

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Our take on the Wellco Radiant Barrier Aluminum Foil Reflective Insulation

Wellco's radiant barrier is a 48 in. by 50 ft. roll of aluminum-foil-faced reflective insulation, 0.3 in. thick and covering 200 sq ft. It works by reflecting radiant heat rather than absorbing it, and it also acts as a vapor retarder against moisture. The roll weighs about 8 lb, so one person can handle it. At $48.74 at Home Depot as of November 4, 2026, it is the only new price listed, so there is no recent range to compare against.

Best forAttics and roof decks where radiant heat builds upGarages, sheds and metal buildingsWrapping ducts, pipes or water heatersDIYers who want a light roll they can cut with scissors
Pros
  • Reflects radiant heat instead of trapping it
  • Doubles as a vapor retarder and is listed mold resistant
  • 200 sq ft per roll at 48 in. wide covers a lot of area
  • Light at about 8 lb and easy to cut to size
  • Works over wood, concrete, tile and pipes
Cons
  • Thin 0.3 in. foil has little R-value on its own; it needs an air gap to perform
  • Foil surface tears and creases easily during install
  • No adhesive backing, so you need staples, tape or fasteners
  • Only one store lists a new price, so there is little price competition

Wellco Radiant Barrier Aluminum Foil Reflective Insulation prices at every store

  • Home DepotNew

    In stock

    $48.74Observed at 3:05 PM
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Wellco Radiant Barrier Aluminum Foil Reflective Insulation price history

Lowest price we've seen: $48.74 on Nov 4 at Home Depot. Tracked across 1 store since Nov 4.

What reviewers say

With only 9 ratings averaging 3.7 out of 5, feedback is mixed. Buyers tend to like the price and coverage but report the foil is fragile and fussy to install.

Pros
  • Good coverage for the money
  • Light and easy to handle
  • Cuts easily to fit
Cons
  • Foil tears easily
  • Needs careful air-gap installation to work
  • Thin material feels flimsy

Specifications

Thermal Resistance
Effectively isolates heat transfer, Effective to isolate the heat transfer
Form
Roll
Product Type
Radiant Barrier
Insulation Type
Reflective Insulation
Reflective Type
Reflective
Thermal Type
Radiation
Application
Isolate the heat transfer
Suitable Surfaces
Wood, Concrete, Copper Pipes, PVC/CPVC Pipes, Tile Flooring
Moisture Resistance
Prevents moisture
Mold Resistance
Mold Resistant
Material Type
Reflective Foil
Facing
Aluminum Foil, Aluminum film
Material Composition
Aluminum Foil, Braided aluminum film, New material
Vapor Retarder
Yes
Coverage Area
200 sq ft
Thickness
0.3 in
Length
50 ft
Roll Size
48 in. x 50 ft.
Width
48 in
Weight
8 LBR
Solution For
Rust prevention, Heat transfer isolation, Moisture prevention, Oxygen prevention

Questions and answers

Is this worth it compared with foam board insulation?
For blocking radiant heat in an attic or on a duct, yes, and it is cheaper per square foot. Foam board adds conductive R-value that this foil does not, so for cold-weather insulation use foam or batts.
Does it actually lower attic heat?
It reflects radiant heat, which helps most when stapled under a roof deck with an air gap facing the hot side. Laid flat against a surface with no gap, the benefit drops sharply.
How much area does one roll cover?
One roll is 48 in. wide by 50 ft. long, or 200 sq ft. Measure your joist or rafter spacing first, since 48 in. suits 16 in. or 24 in. on-center framing with trimming.
Can it go on pipes and ducts?
The listing says it suits copper and PVC/CPVC pipes, and foil wrap is common on ducts and water heaters. Wrap with an air gap and seal seams with foil tape.
Is it safe to handle indoors?
Yes, but wear gloves and eye protection, because the cut foil edges are sharp. Work in a ventilated space and avoid creasing the foil, which can create tears.
When is the price lowest?
Radiant barrier foil is a commodity item, so it tends to dip during fall and winter when attic projects slow down. At $48.74 at Home Depot as of November 4, 2026, it is already near the low end for a 200 sq ft roll.
Where is the Wellco Radiant Barrier Aluminum Foil Reflective Insulation cheapest?
At Home Depot, for $48.74, as of our latest check.
What do buyers say about the Wellco Radiant Barrier Aluminum Foil Reflective Insulation?
Rated 3.7 out of 5 from 9 ratings.

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