---
product_id: 2297881
title: "48\" x 100' Double Bubble Reflective Foil Insulation"
brand: "infrastop"
price: "¥28870"
currency: JPY
in_stock: false
reviews_count: 8
url: https://www.desertcart.jp/products/2297881-48-x-100-double-bubble-reflective-foil-insulation
store_origin: JP
region: Japan
---

# 97% Reflective Moisture Resistant Class A Fire Rated 48" x 100' Double Bubble Reflective Foil Insulation

**Brand:** infrastop
**Price:** ¥28870
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Insulate Smart, Live Better! 🌍

## Quick Answers

- **What is this?** 48" x 100' Double Bubble Reflective Foil Insulation by infrastop
- **How much does it cost?** ¥28870 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/2297881-48-x-100-double-bubble-reflective-foil-insulation)

## Best For

- infrastop enthusiasts

## Why This Product

- Trusted infrastop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Class 1 / Class A fire rating ensures peace of mind in any environment.
- • **Weather Warrior:** Unfazed by moisture and humidity, this insulation stands the test of time.
- • **Easy Installation:** Lightweight and flexible design makes installation a breeze for any DIY enthusiast.
- • **Dual Action Barrier:** Experience the ultimate radiant and vapor barrier in one sleek solution.
- • **Maximize Energy Efficiency:** Transform your space with 97% reflective insulation that keeps the heat in or out!

## Overview

InfraStop 48" x 100' Double Bubble Reflective Foil Insulation offers exceptional thermal performance with 97% reflectivity, ensuring energy efficiency while being strong, durable, and moisture-resistant. With a Class 1 / Class A fire rating, it provides safety and peace of mind, making it the ideal choice for both residential and commercial applications.

## Description

InfraStop 48" x 100' Double Bubble Reflective Foil Insulation - Automotive Fuel Tanks - desertcart.com

Review: Easy improvement on your home's insulation. - The extra layer makes all the difference. This summer was much easier on the electric bill than last, $300 easier. We live in North Carolina. The only insulation in our attic was shredded paper and cardboard. Now we can work in our home office when temperatures reach well into the 90's. The A/C can keep up. We also noticed an instant difference in the heating performance on cold, early spring days. I installed ours across the roof studs with a staple gun and utility knife. Just be sure that air can circulate a little bit. I left gaps along the peak of the roof. Your attic still needs to breathe a little.
Review: Pretty thin layers of bubble - Pretty thin layers of bubble, so that its more like single bubble. Also, the layers of aluminum on each side is actually plasticized metallic coating of some sort. Good way to know if this stuff works well is to put your palm flat a few inches away from the material. The degree of warmth you feel radiating back to your hand is a measure of how well it works. With this test, it appears that there is some radiant effect, and that at least the plasticized metallic coating must have at least some aluminum in it. The double bubble does assure that there's an isolated air pocket across the entire surface of the material; however, since the two layer of bubbles are pretty thin, it's not great insulation. It's best purpose is as a vapor barrier, attic radiant foil across rafters, or as an isolation barrier in a hydronic radiant heat space between the floor joists. For the later project, for joists 6" or deeper, it's best to wrap between and around/under the joists, then use aluminum tape to seal the radiant space, so that it you isolate the joists to within the living space. So radiant space is about 1-2", Leaving 3-1/2 inch space or more for conventional glass batt insulation. Layer plastic sheeting across the floor joists to seal in the glass insulation. Then, if this is a finished basement, sheetrock can be screwed to the joists, such that the double bubble and plastic sheeting provides a thin layer of insulation isolating the sheetrock from the joints.

## Features

- 97% Reflective - Optimal Thermal Performance
- Strong and Durable
- Class 1 / Class A Fire Rated
- Unaffected by Moisture and Humidity
- Radiant and Vapor Barrier - All in One

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006F3GAYQ |
| Best Sellers Rank | #3,319,427 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,682 in Weatherproofing Window Insulation Kits |
| Brand Name | InfraStop |
| Customer Reviews | 4.4 4.4 out of 5 stars (41) |
| Item Dimensions L x W | 1200"L x 48"W |
| Item Weight | 26.5 Pounds |
| Manufacturer | InfraStop |
| Manufacturer Part Number | ISFDF48100 |
| Material Type | Aluminum |
| Model Number | ISFDF48100 |
| Recommended Uses For Product | Thermal Insulation |

## Product Details

- **Brand:** InfraStop
- **Manufacturer:** InfraStop
- **Material:** Aluminum
- **Product Dimensions:** 1200"L x 48"W
- **Recommended Uses For Product:** Thermal Insulation

## Images

![48" x 100' Double Bubble Reflective Foil Insulation - Image 1](https://m.media-amazon.com/images/I/81c9XjG3QxL.jpg)
![48" x 100' Double Bubble Reflective Foil Insulation - Image 2](https://m.media-amazon.com/images/I/61patGEWWEL.jpg)
![48" x 100' Double Bubble Reflective Foil Insulation - Image 3](https://m.media-amazon.com/images/I/51OuLFj-m0L.jpg)
![48" x 100' Double Bubble Reflective Foil Insulation - Image 4](https://m.media-amazon.com/images/I/817qQMKDdSL.jpg)
![48" x 100' Double Bubble Reflective Foil Insulation - Image 5](https://m.media-amazon.com/images/I/51KdE0-VyKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy improvement on your home's insulation.
*by S***4 on October 10, 2015*

The extra layer makes all the difference. This summer was much easier on the electric bill than last, $300 easier. We live in North Carolina. The only insulation in our attic was shredded paper and cardboard. Now we can work in our home office when temperatures reach well into the 90's. The A/C can keep up. We also noticed an instant difference in the heating performance on cold, early spring days. I installed ours across the roof studs with a staple gun and utility knife. Just be sure that air can circulate a little bit. I left gaps along the peak of the roof. Your attic still needs to breathe a little.

### ⭐⭐⭐ Pretty thin layers of bubble
*by A***T on June 8, 2017*

Pretty thin layers of bubble, so that its more like single bubble. Also, the layers of aluminum on each side is actually plasticized metallic coating of some sort. Good way to know if this stuff works well is to put your palm flat a few inches away from the material. The degree of warmth you feel radiating back to your hand is a measure of how well it works. With this test, it appears that there is some radiant effect, and that at least the plasticized metallic coating must have at least some aluminum in it. The double bubble does assure that there's an isolated air pocket across the entire surface of the material; however, since the two layer of bubbles are pretty thin, it's not great insulation. It's best purpose is as a vapor barrier, attic radiant foil across rafters, or as an isolation barrier in a hydronic radiant heat space between the floor joists. For the later project, for joists 6" or deeper, it's best to wrap between and around/under the joists, then use aluminum tape to seal the radiant space, so that it you isolate the joists to within the living space. So radiant space is about 1-2", Leaving 3-1/2 inch space or more for conventional glass batt insulation. Layer plastic sheeting across the floor joists to seal in the glass insulation. Then, if this is a finished basement, sheetrock can be screwed to the joists, such that the double bubble and plastic sheeting provides a thin layer of insulation isolating the sheetrock from the joints.

### ⭐⭐⭐⭐⭐ This stuff is amazing
*by D***S on November 26, 2017*

Super lightweight and durable. I lined my cooler with this and was amazed at how it more than quadrupled the time my food stayed cold, as if it just came out of the fridge. Then I lined a window in my house with it to keep the Southern sun from heating up the room and it kept the room 20 degrees cooler. Makes an awesome stadium or camp seat. Am thinking it would make a super nice ground pad under a sleeping bag, too.

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**Shop now:** [https://www.desertcart.jp/products/2297881-48-x-100-double-bubble-reflective-foil-insulation](https://www.desertcart.jp/products/2297881-48-x-100-double-bubble-reflective-foil-insulation)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-01*