---
product_id: 94075580
title: "100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs)"
brand: "buildershop uk"
price: "$1646.61"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/94075580-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab
store_origin: US
region: United States of America
---

# Superior airborne noise reduction Fire-resistant resin bonded slab 45KG/m³ density - solid sound barrier 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs)

**Brand:** buildershop uk
**Price:** $1646.61
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence the noise, amplify your focus.

## Quick Answers

- **What is this?** 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs) by buildershop uk
- **How much does it cost?** $1646.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/94075580-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab)

## Best For

- buildershop uk enthusiasts

## Why This Product

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

## Key Features

- • **Flexible & Easy to Install:** Adaptable slab design fits seamlessly into modern construction projects without hassle.
- • **Fire-Resistant Safety Layer:** Resin bonded for enhanced fire protection, giving peace of mind alongside performance.
- • **Trusted Quality from Buildershop UK:** Backed by a reputable manufacturer, ensuring consistent high standards for your build.
- • **Versatile Thermal & Acoustic Shield:** Ideal for partition walls and floors, balancing temperature control with noise reduction.
- • **Premium Density for Maximum Soundproofing:** 45KG/m³ density ensures robust acoustic insulation that silences your space.

## Overview

Rockwool RWA45 is a 100mm thick, 45KG/m³ density resin bonded insulation slab designed for superior thermal, acoustic, and fire insulation. Perfect for reducing airborne noise in partition walls and floors, it combines flexibility with high performance, making it a trusted choice for professional-grade soundproofing and safety.

## Description

100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs)

## Features

- Rockwool RWA45 is a flexible high quality resin bonded Rockwool insulation Slab.
- Thermal, acoustic and fire insulation most commonly used when the reduction of noise is required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Buildershop UK |
| Product Dimensions | 1400 x 288 x 0.1 cm |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Buildershop UK
- **Recommended uses for product:** thermal, acoustic, and fire insulation in construction
- **Product dimensions:** 14L x 2.88W metres
- **Manufacturer:** Buildershop UK

## Images

![100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs) - Image 1](https://m.media-amazon.com/images/I/31IApuQ9lmL.jpg)

## Frequently Bought Together

- Buildershop UK 100mm Rockwool RWA45 (Formerly Known as ProRox SL920) Acoustic Slab (14 x 2.88m2 Packs)
- Unibond No More Nails Original Cartridge 365g
- ProDec Extra Strong Caulking Gun

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**Shop now:** [https://www.desertcart.us/products/94075580-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab](https://www.desertcart.us/products/94075580-100mm-rockwool-rwa45-formerly-known-as-prorox-sl920-acoustic-slab)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-16*