---
product_id: 1050620
title: "ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43\" x 28' x 2.5 mm"
brand: "roberts"
price: "€ 74.63"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/1050620-roberts-black-jack-underlayment-100-sq-ft-roll-43-x
store_origin: CY
region: Cyprus
---

# 2.5 mm thickness for optimal cushioning Sound reduction & subfloor leveling Dense closed-cell moisture barrier ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43" x 28' x 2.5 mm

**Brand:** roberts
**Price:** € 74.63
**Availability:** ✅ In Stock

## Summary

> 🖤 Elevate your floors with Black Jack — where comfort meets cutting-edge protection!

## Quick Answers

- **What is this?** ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43" x 28' x 2.5 mm by roberts
- **How much does it cost?** € 74.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/1050620-roberts-black-jack-underlayment-100-sq-ft-roll-43-x)

## Best For

- roberts enthusiasts

## Why This Product

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

## Key Features

- • **Soundproof Your Space:** Reduces noise for a quieter, more professional environment.
- • **Effortless Installation:** Plastic overlap and adhesive strip make setup quick and precise.
- • **Premium 2.5 mm Thickness:** Engineered for superior cushioning and comfort underfoot.
- • **Moisture-Resistant Shield:** Closed-cell structure locks out moisture, protecting your investment.
- • **Seamless 100 sq. ft. Coverage:** Maximize your flooring project with a single, expansive roll.

## Overview

ROBERTS Black Jack Underlayment delivers 100 sq. ft. of premium 2.5 mm thick cushioning designed for laminate and engineered wood floors. Its dense closed-cell structure provides a reliable moisture barrier, sound reduction, and smooths minor subfloor imperfections. Featuring easy installation with plastic overlap and adhesive strip, it’s the smart choice for professionals seeking durable, high-performance flooring prep.

## Description

ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43" x 28' x 2.5 mm

## Features

- 100 sq. ft. coverage with rolls measuring 28 ft. x 43 in. x 2.5 mm
- For use under laminate and engineered wood flooring
- Dense, closed cell structure offers moisture barricade
- Offers cushioning, sound reduction, resistance and levels minor sub floor imperfections
- Easy installation with plastic overlap and adhesive strip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Thickness | 2.5 Millimeters |
| Item Form | Sheet |
| Item Weight | 2 Pounds |
| Specification Met | True |
| UPC | 075378700265 |
| Number of Items | 1 |
| Manufacturer | Roberts |
| Part Number | 70-026 |
| Item Weight | 1.95 pounds |
| Product Dimensions | 336 x 43 x 0.09 inches |
| Item model number | 70-026 |
| Is Discontinued By Manufacturer | No |
| Size | 100 sq. ft. |
| Style | Jack |
| Finish | Premium |
| Item Package Quantity | 1 |
| Coverage | 100 square feet |
| Included Components | Underlayment Roll |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Limited Lifetime |

## Product Details

- **Material:** wood
- **Brand:** ROBERTS
- **Item dimensions L x W x H:** 336 x 43 x 0.09 inches
- **Color:** Black
- **Shape:** Rectangular

## Images

![ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43" x 28' x 2.5 mm - Image 1](https://m.media-amazon.com/images/I/61obWlCD1YL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: What is the sound ratings ,ie IIC,STC,in order to comply with HOA**
A: That is incorrect, from Roberts website, it's a bit higher with IIC at 70 and STC at 66

**Q: Whats R-Value or Thermal Resistance for this Underlayment? Installing over Radiant Heated Concrete slab and need a low R-value.**
A: The manufacturer's information doesn't really say anything about R value and I doubt there is any. It must be extremely extremely small. I installed this underlayment over dricore panels. Works great...

**Q: What density rating is this product?**
A: Hi! Please refer to below information. 

item#	thickness 	times	density (kg/m³)
70-026　2.5MM	        30　        33

**Q: Would this work on a van floor?**
A: Debra,This backing provides moisture and sound benefits for rigid flooring over cement applications. It is easily ripped if you are not careful when installing flooring. I'd use something more durable for a vehicle especially if moisture or sound reduction isn't an issue.

## Frequently Bought Together

- ROBERTS Black Jack Underlayment - 100 sq. ft. Roll - 43" x 28' x 2.5 mm
- ROBERTS 50-040 Underlayment Tape Roll, Red
- ROBERTS 70-115 Moisture Barricade Underlayment Film, for Vinyl, Laminate SPC, Engineered Wood Floors, 6 mil. Thick, Polyethylene, 120 Sq. Foot Roll, Black

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**Shop now:** [https://www.desertcart.com.cy/products/1050620-roberts-black-jack-underlayment-100-sq-ft-roll-43-x](https://www.desertcart.com.cy/products/1050620-roberts-black-jack-underlayment-100-sq-ft-roll-43-x)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-26*