EcoFoil Double Bubble Insulation Roll 48" x 75', 300 sq ft Radiant Barrier, White/Foil Review (2026)

What this roll is

EcoFoil's own product page describes this as a double bubble reflective insulation roll measuring 4 feet by 75 feet, working out to 300 square feet per roll, with one white-finished face and one foil face so installers can choose which side faces the living space. The core is two layers of polyethylene bubbles sandwiched between reflective surfaces, about a quarter inch thick, and the manufacturer rates it to reflect up to 96 percent of radiant heat. Unlike some competing insulation, EcoFoil does not claim an R-value for this product; the company states its effectiveness is measured through its reflective and emissive properties instead, which is worth knowing if you are comparing it against fiberglass batt insulation on paper.

Fire rating and safety

EcoFoil lists this roll with a Class 1 or Class A fire rating under the ASTM-E84-09 test standard, and describes the material as non-toxic, non-carcinogenic, fiber free, and free of off-gassing, details that matter in an enclosed coop where ventilation is often limited. The company also publishes an installation standard, ASTM-E2599-08, and backs the roll with a lifetime warranty against delamination or decomposition when it is installed correctly. That level of documentation is more thorough than most Amazon-only insulation brands provide, and it is a reasonable point in this product's favor for anyone who wants a paper trail on fire safety before installing insulation near a heat lamp or heated waterer.

Coverage and who needs this much

At 300 square feet, one roll covers roughly the wall and ceiling area of a mid-size coop, several smaller coops, or a coop plus an attached run shelter, and EcoFoil markets it for pole barns, metal buildings, basement walls, and crawl spaces alongside backyard structures. For a single small coop, this is more material than necessary, and a keeper would either need a second project to use the leftover roll or should look at EcoFoil's smaller 100 square foot option instead. Buyers doing a multi-coop property, a coop plus a feed shed, or a larger walk-in coop are the ones most likely to use the full roll without much waste.

Installation and sealing

EcoFoil recommends stapling the material to exposed studs or using spray adhesive, and its installation guidance calls for taping every seam and joint, suggesting roughly one roll of tape per 500 square feet of insulation, which is not included with this listing and needs to be bought separately. Properly sealing every seam is what turns the roll into a vapor barrier rather than just a loose reflective liner, so budgeting time and tape for that step matters as much as the insulation itself. The company notes the material is lightweight, easy to handle, and cuts easily with scissors or a utility knife, so the physical installation does not require specialty tools beyond a staple gun or adhesive.

Who this size fits

This roll makes the most sense for a larger coop, a multi-building property, or a keeper who wants a documented, warrantied radiant barrier and does not mind buying seam tape separately. It is overkill for a single small backyard coop, where a smaller EcoFoil roll or a narrower product would leave less unused material. As with any reflective foil insulation, plan to cover the finished interior with plywood or another panel so hens cannot peck at the foil, and budget for proper sealing at every seam if you want the vapor barrier benefit the manufacturer describes.

Frequently asked questions