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SEALTECH
SEALTECH Heavy Duty 10mm Reflective Insulation Roll

SEALTECH Heavy Duty 10mm Reflective Insulation Roll

4.5· 174 ratings

Best price now

$49.95at Tractor Supply CompanyObserved at 3:58 PM

15% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Our take on the SEALTECH Heavy Duty 10mm Reflective Insulation Roll

A 10 mm reflective foil roll with a closed-cell core, sold in 8 in x 40 ft strips that cover about 30 sq ft. It works as a radiant barrier, vapor retarder and sound damper for attics, metal roofs, floors, windows and ducts. The stated R-18 comes from the reflective surface, so it depends on an air gap and clean foil facing the space. At $26.88 on eBay as of November 4, 2026, it sits at the low end of the four new listings.

Best forAttics and metal roofs needing a radiant barrierSound damping on walls, ceilings and floorsMoisture and vapor control in basements or crawl spacesDIY jobs where a narrow 8 in roll is easier to handle
Pros
  • Reflects up to 95% of radiant energy
  • Closed-cell core resists moisture and mold
  • Works indoors and outdoors, up to 190°F
  • Narrow 8 in width fits between studs and joists
  • Cuts with scissors or a utility knife
Cons
  • R-18 rating only holds with a proper air gap
  • 30 sq ft per roll means many rolls for a full attic
  • Foil surface tears and creases easily
  • No tape or fasteners included
  • Not a substitute for mass insulation in cold climates

SEALTECH Heavy Duty 10mm Reflective Insulation Roll prices at every store

  • Tractor Supply CompanyNew

    In stock

    $49.95Observed at 3:58 PM
    Visit store
  • WayfairNew

    Availability unknown

    $58.99Observed at 3:58 PM
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  • Home DepotNew

    Availability unknown

    $60.98Observed at 3:58 PM
    Visit store

Also available at

  • eBayCheck price at eBay
  • WebstaurantStore.comCheck price at WebstaurantStore.com

SEALTECH Heavy Duty 10mm Reflective Insulation Roll price history

Lowest price we've seen: $41.49 on Nov 4 at WebstaurantStore.com. Tracked across 4 stores since Nov 4.

What reviewers say

Buyers rate it 4.5 out of 5 across 174 ratings. Most use it for attic and shed heat control and report a noticeable drop in radiant heat. Complaints center on the thin foil and the small coverage per roll.

Pros
  • Cuts easily and installs fast
  • Noticeable heat reduction under roofs
  • Holds up outdoors without breaking down
Cons
  • Foil tears if handled roughly
  • Rolls run out quickly on large areas
  • R-value claims overstated without an air gap

Specifications

Form
Rolls
Fire Rating Class
Fire retardant
Product Type
Insulation Roll
Insulation Type
Thermal, Acoustic
Insulated Plasterboard
No
Reflective Type
Radiant Barrier
Thermal Type
Radiation
Mold Resistance
Mold Resistant
R-Value
18 (10 mm thick)
Thermal Resistance
Reflects 95% of radiant energy
Sound Absorption
Minimizing sound transmission
Max Service Temp
190 degrees F
Coverage Area
30 sq ft
Thickness
10 mm
Length
10 ft
Roll Size
8 in x 40 ft
Width
8 in
Material Type
Reflective Foil
Facing
Foil
Density
Closed-cell core
Vapor Retarder
Yes
Application
Soundproofing, Energy savings, Moisture barrier, Thermal insulation
Recommended Usage
Indoor, Outdoor
Suitable Surfaces
Windows, Attics, Ceilings, Concrete floors, Metal roofs

Questions and answers

Is the R-18 rating real?
R-18 applies to the reflective assembly with a dead air space, not the 10 mm foil alone. Without an air gap the added R-value is small, so pair it with existing mass insulation.
How much area does one roll cover?
One roll is 8 in wide by 40 ft long, about 30 sq ft. A 1,000 sq ft attic needs roughly 33 rolls at full coverage.
Can it go on windows?
Yes, it is listed for windows, but the foil blocks light and views. Use it on windows you want to shade, and leave an air gap for the reflective effect.
Is it safe near heat sources?
The maximum service temperature is 190°F. Keep it away from flues, chimneys and recessed light housings that exceed that.
Does it work as a vapor barrier?
Yes, the closed-cell core and foil facing act as a vapor retarder. Place the foil face toward the warm, humid side in cold climates.
When is it cheapest?
The best new price was $26.88 at eBay as of November 4, 2026. Roll prices move with foil costs, so compare all four stores before buying multiples.
Where is the SEALTECH Heavy Duty 10mm Reflective Insulation Roll cheapest?
At Tractor Supply Company, for $49.95, 15% under what the other stores charge, as of our latest check.
What do buyers say about the SEALTECH Heavy Duty 10mm Reflective Insulation Roll?
Rated 4.5 out of 5 from 174 ratings.
Where can I buy the SEALTECH Heavy Duty 10mm Reflective Insulation Roll?
5 stores we checked sell it, including Tractor Supply Company, Wayfair, Home Depot, eBay, WebstaurantStore.com.