๐ŸŒ Worldwide shipping ยท 30-day returns ยท Rated Excellent on Trustpilot โ˜…โ˜…โ˜…โ˜…ยฝ
Price
$189.99
Rockwool RWA45 75mm Slab 1200mm x 600mm - (4.32m2/Pack) Construction Megastore โ€” image 1
Panel InsulationGenericโœ“ In stock

Rockwool RWA45 75mm Slab 1200mm x 600mm - (4.32m2/Pack) Construction Megastore

โ˜…โ˜…โ˜…โ˜…โ˜…
$189.99
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
Safe & protected
Great service
Thousands of happy customers
Add to cart
About this item
  • Interior timber or steel partition walls and Party walls
  • Interior timber frame floors
  • Interior timber frame ceilings and Pitched roofs
  • Acoustic ceilings, partition panels and I-joist interior partitions
  • Industrial applications
Product description

Rockwool RWA45 Acoustic Insulation Slab: a robust 3-in-1 thermal, acoustic and fire insulant. This multi-application mineral wool insulation solution is suitable for a host of general building projects and specialist specifications- from residential extensions to refurbishment builds in both commercial and leisure applications. Thanks to its non-directional fibre structure and 45kg/m3 density, 50mm RWA45 is second to none when it comes to acoustic performance, making it the ideal solution for use in separating floors and internal walls. In terms of its fire performance, 50mm Rockwool RWA45 slab remains unbeatable, achieving an A1 non-combustible rating - the highest possible level of fire resistance. Rockwool RWA45 50mm can be used as a means of reducing fire spread and damage. Users of RWA45 can rest assured that these premium-quality semi-rigid slabs are not only optimising the fire protection of their build but (with a thermal conductivity of 0.035 W/mK) are also working in tandem to protect its thermal envelope. RWA45 Datasheet Rockwool Sound Insulation Slab Applications Unrivalled in its acoustic performance, 50mm RWA45 (often referred to as a Sound Slab - no prizes for guessing why), makes for the ideal solution when soundproofing separating floors and internal walls. Not only will it maintain the volume within your project, but it will also protect it with an immaculate A1 non-combustible rating. To make life easier, Rockwool slabs are resin bonded and cut to 1200mm x 600mm, which allows them to slot perfectly between standard stud partitions and floor joists that are at 600mm centres. The multi use solution slabs can be used in multiple applications, including the following:

Product details
Brand
Generic
Manufacturer
CMS
Material
Wool
Colour
Red/White
Model number
RWA4550

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
โ˜…โ˜…โ˜…โ˜…โ˜…
Excellent
4.5 average rating
See all reviews โ†’
S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
โ˜…โ˜…โ˜…โ˜…โ˜…

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
โ˜…โ˜…โ˜…โ˜…โ˜…

The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

You might also like

Similar items

View all โ†’