---
product_id: 55677036
title: "RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID"
brand: "radiantguard"
price: "¥54923"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/55677036-radiantguard-xtreme-radiant-barrier-25-5-inch-1-000-square
store_origin: JP
region: Japan
---

# RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID

**Brand:** radiantguard
**Price:** ¥54923
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID by radiantguard
- **How much does it cost?** ¥54923 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/55677036-radiantguard-xtreme-radiant-barrier-25-5-inch-1-000-square)

## Best For

- radiantguard enthusiasts

## Why This Product

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

## Description

Studies show that a majority of the heat that enters your home comes through the roof into the attic space and then through your ceilings into your living areas. On an average summer day, your attic space can quickly heat up to 40 degrees hotter than the outdoor temperature.  By installing RadiantGUARD Xtreme radiant barrier in your attic, you will block 97% of the heat from coming into your living areas below the attic. HOW TO INSTALL XTREME RADIANT BARRIER Today, radiant barriers are used extensively in many different industries including construction (both in residential attics and as house wrap and in commercial buildings), pharmaceuticals, agricultural and aviation to name a few. The two primary ways a radiant barrier is installed in an attic space are: • Stapled to the bottom of attic roof rafters • Rolled out over the attic floor (alone or on top of other mass insulations already in place). INSTALLATION TIPS • Start the installation early in the morning when your attic is at its coolest. • Keep plenty of water on hand and drink consistently (even if not thirsty). Attic temperatures can quickly reach up to 40 degrees hotter than outdoor temperatures. • Bring an additional lighting source to help you see in the darker areas. • Always be aware of the attic floor joists you walk on. Some joists may “roll” when walked on if not properly secured. • For DIYers, spread your install out over of a couple of days taking advantage of the cooler morning hours to work on the install. • For contractors, work in groups of two or three having one person cutting the product and handing it to another person stapling it. Shared responsibilities help reduce installation time and reduce the chance of injury from moving around in the attic.

## Features

- 1,000 SQUARE FEET ROLL (35 pounds): Roll of two (2) 25.5 inch X 235 feet sections (1000 sf) breathable DOUBLE-SIDED pure metalized aluminum film ASTM C1313 certified radiant barrier; reflects 95% radiant heat
- USED IN RETROFIT &amp; NEW CONSTRUCTION: Reduces residential attic temperatures up to 40 degrees; lowers utility bills year round. Thermal insulation used in attic space, garage, garage doors, housewrap, workshop, shed, storage unit, commercial metal building, pole barn, as pallet wrap, and more.
- INDUSTRIALIZED GRADE: Is TEAR &amp; PUNCTURE PROOF yet cuts easily with utility scissors or hack saw. Reflects 95% of the radiant heat.
- EASY TO MAINTAIN: Non-toxic; non-carcinogenic; fiber free; easy to install; not affected by humidity; maintenance free; does not promote the growth of fungi or bacteria; does not support nesting by rodents or insects.
- ASTM CERTIFIED: Meets all American Society for Testing and Materials (ASTM) requirements for radiant barrier classification (C1313) • Exceeds all FIRE, SMOKE, (ASTM E-86) and BREATHABILITY requirements for building materials (ASTM 96-00). BLOCKs 99.06% of RF signals (IEEE-299) for Sensitive Compartmented Information Facility SCIF rooms

## Images

![RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID - Image 1](https://images-na.ssl-images-amazon.com/images/I/51S99-abayL.jpg)
![RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID - Image 2](https://images-na.ssl-images-amazon.com/images/I/51lXfDryq2L.jpg)
![RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID - Image 3](https://images-na.ssl-images-amazon.com/images/I/61aJ4llMgIL.jpg)
![RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID - Image 4](https://images-na.ssl-images-amazon.com/images/I/51mEfCdxYLL.jpg)
![RadiantGUARD XTREME Radiant Barrier 25.5-inch 1,000 square feet roll (Xtr-1000-B-25.5) Reflective Aluminum Breathable Attic Roof Foil Insulation House Wrap BLOCK 95% of Heat 99% RF Signals SCIF RFID - Image 5](https://images-na.ssl-images-amazon.com/images/I/51b4kUL7CdL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/55677036-radiantguard-xtreme-radiant-barrier-25-5-inch-1-000-square](https://www.desertcart.jp/products/55677036-radiantguard-xtreme-radiant-barrier-25-5-inch-1-000-square)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-07*