Rockwool RWA45 Acoustic Insulation Slabs | 75mm (4.32m2 per Pack)

Rockwool RWA45 Acoustic Insulation Slabs | 75mm (4.32m2 per Pack)

Q: Does this keep outside noise from entering the room through the windows? (planning on building a barrier on the windows)

Hi "No". I think rockwool is more for... reducing cold air, for making rooms more warm but not really for reducing noise. It is often used in lofts to insulate, to make warmer. For noise solution, You may find a special "acoustic wool" online. Hope this helps

Q: can it be used as a thermal insulation

I bought this as a filler between air bricks to stop the draft. But they do breath. If you want thermal insulation on a large scale to do a room. I would have thought a thermal backed plaster board would be a better option. Like a dry linning board. Hope this helps.

Q: Does this keep outside noise from entering the room through the windows? (planning on building a barrier on the windows)

It will help but you would be better using heavy wooden shutters.

Product ID: 65740140

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Details

Material
Stone wool
Brand
Rockwool
Item thickness
75 Millimetres
Recommended uses for product
Thermal Fire
Product dimensions
120L x 60W

🎧Top-tier acoustic insulation

💧Water repellent tech

🔥A1 Euroclass fire rating

Frequently Bought Together

Rockwool RWA45 Acoustic Insulation Slabs | 75mm (4.32m2 per Pack)

Rockwool RWA45 Acoustic Insulation Slabs | 100mm (2.88m2 per Pack)

Rockwool RWA45 Acoustic Insulation Slab 1200mm x 600 x 50 Millimetre 9 Pieces Per Pack. 6.48 Square Meters

Description

🔥 Elevate your space with fire-safe, sound-smart insulation!

UNRIVALED FIRE SAFETY - Euroclass A1 non-combustible rating ensures maximum protection and peace of mind.
EFFORTLESS INSTALLATION - Lightweight 75mm slabs designed for quick, hassle-free handling and fitting.
PREMIUM ACOUSTIC PERFORMANCE - Industry-leading soundproofing ideal for floors, walls, and ceilings.
MOISTURE RESISTANT DURABILITY - Water repellent design prevents damp, rot, and long-term degradation.
SUSTAINABLE THERMAL EFFICIENCY - Maintains superior insulation performance throughout your building’s lifetime.

Rockwool RWA45 Acoustic Insulation Slabs (75mm) deliver exceptional thermal, acoustic, and fire insulation with an A1 Euroclass fire rating. Water repellent and lightweight, these slabs cover 4.32m² per pack and are engineered for easy installation and long-lasting performance in floors, walls, and roofs.

Specifications

Manufacturer	buildermerchant.com
Part Number	Rockwool RWA45 75mm
Product Dimensions	120 x 61 x 41 cm; 8 kg
Batteries	Product Specific batteries required.
Item model number	Rockwool RWA45 75mm
Size	75mm (4.32m2 per pack)
Colour	N / a
Item Package Quantity	1
Number of Pieces	1
Coverage	thermal, acoustic, fire
Included Components	Rockwool RWA45 75mm
Batteries included?	No
Batteries Required?	No
Item Weight	8 kg

Have a Question? See What Others Asked

am I missing something or are these double the usual price at builder merchants?

Does this keep outside noise from entering the room through the windows? (planning on building a barrier on the windows)

can it be used as a thermal insulation

Does this keep outside noise from entering the room through the windows? (planning on building a barrier on the windows)

Reviews

M**M

Great quality and next day delivery.

Exactly as expected but delivered in a day, not in 7-8 days as predicted. Excellent service. Thank you.

2.05.2025

A**R

great stuff

Its very pliable

9.11.2024

J**O

NOT what the product described

I purchased this item based upon the description only to discover that it certainly did not meet the expectations of the description. I was led to believe these were slabs with some degree of rigidity to them. This was not at all the case - they were extremely floppy with no capacity to stand upright without lots of support. As a result of this I had to seriously modify my plans in building a recording studio. It was extremely annoying as I had opened up the product and partly put my build into action before fully realising the problem so felt unable to pack it up and send in back, not least because I was working to a deadline. I'm sure this stuff is OK if you're using it to insulate a loft, but it's very unfriendly if you're wanting to soundproof walls.

3.06.2020

D**Y

Good whenn

Does the job. I needed a small amount to use for dividing walls and under floors when itching up a house.

13.03.2020

C**N

Does the job

Nothing to complain. First of all the product was delivered 5 days early than usual. Did the job.Nice one.

27.05.2020

L**.

Rockwool.

Arrived as advertised.

4.06.2020

M**N

4.06.2021

D**0

Worth the money

Just what I needed. Done the job .

15.03.2021

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