---
product_id: 53101949
title: "Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat"
brand: "radiantguard"
price: "$401"
currency: NZD
in_stock: false
reviews_count: 8
url: https://www.desertcart.nz/products/53101949-solid-radiant-barrier-radiantguard-ultima-foil-vapor-barrier-heavy-grade
store_origin: NZ
region: New Zealand
---

# 500 sq ft coverage Blocks 97% heat Tear & puncture proof Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat

**Brand:** radiantguard
**Price:** $401
**Availability:** ❌ Out of Stock

## Summary

> Transform Your Space with RadiantGUARD! ✨

## Quick Answers

- **What is this?** Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat by radiantguard
- **How much does it cost?** $401 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/53101949-solid-radiant-barrier-radiantguard-ultima-foil-vapor-barrier-heavy-grade)

## Best For

- radiantguard enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Class A fire rating ensures compliance with building codes.
- • **Moisture Blocker:** Solid vapor barrier keeps your spaces dry and safe.
- • **Easy Installation:** Cuts easily with scissors, making setup a breeze.
- • **Ultimate Heat Shield:** Reflects 97% of radiant heat for maximum comfort.
- • **Commercial Grade Durability:** Tear and puncture proof for long-lasting performance.

## Overview

The Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier is a heavy-grade, double-sided aluminum foil insulation roll that covers 500 square feet. Designed to block 97% of radiant heat and moisture vapor, it is ideal for various applications including basements, crawl spaces, and saunas. With a Class A fire rating and industrial-grade durability, this product is easy to install and maintain, ensuring a safe and comfortable environment.

## Description

Full description not available

## Features

- 500 SQUARE FEET ROLL (15 pounds): 125 linear feet water proof VAPOR BARRIER (solid) DOUBLE-SIDED pure aluminum foil certified radiant barrier insulation; reflects 97% radiant heat
- VAPOR BARRIER (SOLID): Designed to block moisture vapor from passing through. Ideal wrap for basement, crawl space, behind drywall, in sauna, hot tub, steam room, grow room. Can withstand temperatures up to 180 degrees F.
- INDUSTRIALIZED COMMERCIAL GRADE: Is TEAR & PUNCTURE PROOF yet cuts easily with utility scissors or hack saw. Reflects 97% of the radiant heat
- EASY TO MAINTAIN: Non-toxic; non-carcinogenic; fiber free; easy to install; not affected by humidity; maintenance free. MUST be stored in a clean dry environment prior to installation.
- Class A / Class 1 (ASTM E-84) highest achievable safety fire rating therefore, meets fire and smoke requirements for most local, state and federal building codes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RadiantGUARD |
| Part Number | RG-U-500-VB |
| Item Weight | 15 pounds |
| Product Dimensions | 48 x 5 x 5 inches |
| Item model number | RG-U-500-VB |
| Is Discontinued By Manufacturer | No |
| Color | Silver |
| Material | Aluminum |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Brand:** RadiantGUARD
- **Product Dimensions:** 1500"L x 48"W
- **Manufacturer:** RadiantGUARD
- **UPC:** 852166008761

## Images

![Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat - Image 1](https://m.media-amazon.com/images/I/71KLZA-rNQL.jpg)
![Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat - Image 2](https://m.media-amazon.com/images/I/71un1tBaW5L.jpg)
![Solid Radiant Barrier RadiantGUARD Ultima FOIL Vapor Barrier Heavy Grade 500 sq ft roll | 48-inch by 125-feet | U-500-VB | Reflective Radiant Barrier Foil Aluminum Insulation - Blocks 97% Heat - Image 3](https://m.media-amazon.com/images/I/71TFxGEz8GL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for Sauna
*by M***N on March 14, 2018*

Nice and thick material, easy to cut to size but doesn't rip on the wall while installing it. Used in my sauna room build.

### ⭐⭐⭐⭐⭐ Five Stars
*by J***A on March 13, 2018*

It was easy to install and stronger than I thought

### ⭐⭐ Definitely not for sauna!
*by O***A on February 5, 2019*

I ordered this foil because the title said it is suitable for sauna. When it came, I installed it on the ceiling of my sauna. Since I am building the sauna in the winter, I turned on the heater for about 2 minutes to heat up the room while I am working there. The temperature raised to about 90F and I started noticing the plastic core of this foil started shrinking. So I heated the sauna to about 120F to prove this foil is not gonna last. The result was obvious. The foil completely shrank and the plastic core showed up on the surface.I did some research on the internet and learned that all plastic core aluminum foils will do that. What is needed for the sauna is aluminum foil on a paper substrate.Besides this giant disappointment and realization that this product wont last in heat (despite the description), the foils is quite thick and durable.

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**Shop now:** [https://www.desertcart.nz/products/53101949-solid-radiant-barrier-radiantguard-ultima-foil-vapor-barrier-heavy-grade](https://www.desertcart.nz/products/53101949-solid-radiant-barrier-radiantguard-ultima-foil-vapor-barrier-heavy-grade)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*