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23 Reviews
View Product Reviews100mm Rockwool RWA45 Acoustic Sound Insulation Slab (2.88m2/Pack)
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Delivery & Returns Information
All delivery charges are shown in your basket and are dependent on the total value of items in your basket based on product category.
This charge is based on delivery to mainland UK excluding the following postcodes: AB, DD, KW, IV, LD, LL, PH, SA and SY. If your delivery address is in any of these postcode areas a member of our customer service team will contact you prior to processing your order should an additional delivery charge apply. We do not offer deliveries outside the UK mainland.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | ||
|---|---|---|
| ORDER VALUE | DELIVERY CHARGE | |
| Under £150 | £50 ex. VAT | |
| Between £150 - £400 ex. VAT | £35 ex. VAT | |
| Over £400 ex. VAT | FREE | |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £25 ex. VAT | |
| Between £100 - £250 ex. VAT | £20 ex. VAT | |
| Over £250 ex. VAT | FREE | |
| SuperFOIL and YBS products | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Each item | £10 ex. VAT | |
| Over £350 ex. VAT of 1 brand | FREE | |
| Paving Stone Products | ||
| DELIVERY CHARGE | ||
| FREE | ||
| Screws & Fixings and Adhesives & Sealants | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £7.50 ex. VAT | |
| Over £100 ex. VAT | FREE | |
| Thermafleece CosyWool Roll & SupaSoft Insulation | ||
| QUANTITY | DELIVERY CHARGE | |
| 1 | £30 ex. VAT | |
| 2 | £60 ex. VAT | |
| 3 to 12 | £70 ex. VAT | |
| 13 to 24 | £140 ex. VAT | |
| 25 to 36 | £210 ex. VAT | |
| 37 to 48 | £280 ex. VAT | |
| 49 to 60 | £350 ex. VAT | |
| 61+ | £420 ex. VAT | |
| Thermafleece CosyWool Slab, Thermafleece UltraWool & Thermafleece NatraHemp | ||
| QUANTITY | DELIVERY CHARGE | |
| 1 | £30 ex. VAT | |
| 2 | £60 ex. VAT | |
| 3 to 4 | £70 ex. VAT | |
| 5 to 8 | £140 ex. VAT | |
| 9 to 12 | £210 ex. VAT | |
| 13 to 16 | £280 ex. VAT | |
| 17 to 20 | £350 ex. VAT | |
| 21+ | £420 ex. VAT | |
| Block Pavers | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £17.50 ex. VAT | |
| Between £100 - £200 ex. VAT | £30.50 ex. VAT | |
| Between £200 - £900 ex. VAT | £105 ex. VAT | |
| Over £900 ex. VAT | FREE | |
| Artificial Grass | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £12 ex. VAT | |
| Between £100 - £200 ex. VAT | £16.50 ex. VAT | |
| Over £200 ex. VAT | £22 ex. VAT | |
| Doors and Feature Panelling | ||
| QUANTITY | DELIVERY CHARGE | |
| 1 to 2 | £35 ex. VAT | |
| 3 to 4 | £45 ex. VAT | |
| 5+ | £60 ex. VAT | |
|
* Deliveries of Doors and Panels to Scotland may incur additional costs and may have an extended delivery time of an additional 3 working days. Delivery to the postcodes below will be charged an additional delivery fee. Our customer service team will reach out to you if you order requires an additional delivery charge. This will be calculated based on the difference between the standard cost charged and the total cost outlined below:
Postcodes: KA1-29, IV1-39, AB, PH1-41, DD, PA1-19, KY, FK, FK15-21 - £90 ex VAT (total delivery cost) |
||
| Ironmongery | ||
| DELIVERY CHARGE | ||
| 1+ | £16.50 ex. VAT | |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{home}} Use in ceilings, walls and floors
- {{local_fire_department}} A1 non-combustible
- {{density_medium}} 45kg/m3 density
- {{volume_off}} Excellent acoustic and thermal performance
- {{build}} 600mm width to fit between studwork
- {{public}} Zero Ozone Depletion Potential (ODP)
Technical Specification
| Material Type: | Rock Mineral |
|---|---|
| Thickness: | 100mm |
| Width: | 600mm |
| Length: | 1200mm |
| Pieces Per Pack: | 4 |
| Sales Unit: | Pack |
| Sales Unit Coverage: | 2.88m2 |
| Brand: | Rockwool |
| Manufacturer's Reference: | 209274 |
| Thermal Conductivity: | 0.035W/mK |
| Density: | 45kg/m3 |
| Fire Rating: | A1 Non-Combustible |
Technical Downloads
What Is Rockwool RWA45 100mm?
Rockwool RWA45 100mm is a comprehensive solution for thermal, acoustic, and fire insulation needs. This high-performance product is ideal for a variety of building applications, from residential renovations to commercial and leisure sector refurbishments.
Constructed from mineral wool, the RWA45 100mm slab boasts a density of 45kg/m3 and a non-directional fibre structure, enhancing its acoustic capabilities. This makes it perfect for use in separating walls and floors where superior sound insulation is required.
The Rockwool RWA45 100mm also excels in fire safety, achieving an A1 non-combustible rating, ensuring maximum resistance against fire spread and damage. Its thermal properties are equally impressive, with a conductivity of just 0.035 W/mK, aiding in maintaining a building's thermal efficiency.
What's more, 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 100mm is the most popular thickness of the Rockwool RW slab range and has a pack quantity of 4 slabs. Rockwool also manufactures in thicknesses: 25mm, 50mm and 75mm.
Where Is Rockwool RWA45 100mm Used?
- Interior timber or steel partition walls
- Interior timber frame floors
- Interior timber frame ceilings
- Acoustic ceilings and partition panels
- I-joist interior partitions
- Pitched roofs
- Party walls
- Industrial applications
Rockwool RWA45 100mm Benefits
- Zero Ozone Depleting Potential (ODP) and Global Warming Potential (GWP)
- Rot-resistant - withstands mould and mildew
- Thermal conductivity of 0.035 W/mK
- Fire Classification (Reaction To Fire) - Euroclass A1 (BS EN 13501-1)
- Hydrophobic - reliable water repellent properties
- Excellent acoustic, fire and thermal performance
Rockwool RWA45 100mm Acoustic Performance
Rockwool RWA45 100mm slabs, with a density of 45kg/m3, excel in both thermal and acoustic insulation by effectively trapping sound within its non-directional fibre structure, preventing noise from travelling to adjacent spaces.
This product is a leading choice for soundproofing, especially suitable for internal and separating walls to maintain comfortable noise levels.
Rockwool 100mm RWA45 Certifications
BS EN is British and European Standard Specifications. With over 100 years of experience, the British Standards Institute is recognised as the UK’s National standards body. BS EN considers Rockwool both:
- A1 non-combustible in accordance with BS EN 13501-1 - achieving the highest possible level of fire performance/resists high temperatures
- CE and Key marked in accordance with BS EN 13162:2012 + A1:2015.v
100mm Rockwool slabs are also certified by Lloyd's register of shipping as non-combustible materials for use on:
- Fixed offshore installations
- MED classed ships- DTLR MCA approval
- Rated non-combustible in accordance with ISO 1182 and IMO A. 799
Rockwool RWA45 100mm Insulation Storage & Handling
RWA45 100mm slabs are soft and can be easily cut with a serrated blade. For storage, it is recommended to keep the slabs indoors and away from the elements.
Customer Reviews
Fantastic product. When it came to adding these in between the studwork, they were simple to fit into place and then to cut I used a bread knife, as I didn't have a drywall knife - the slabs are like you are cutting bread! The RWA45 slabs have helped reduce noise between rooms since I've installed and I would recommend buying them.
Easy to use
Great insulation as part of a soundproofing solution
Arrived on time, thank you
received as expected, thanks
We used this in our extension and it's really helped with soundproofing
Arrived on time and did the job
Great product
Really helped to reduce noise between floors
Perfect for my new home gym!
Easy to install, just needed a sharp knife to cut the slabs to size for my wall
Great product, I bought this for the acoustic performance and it was the ideal solution to soundproof my home gym
Ordered and received to my delivery postcode in 2 days
Completely changed the noise from the hallow stairs between bedrooms. Would buy again.
Great acoustic insulation slabs. Really reduced the sound from upstairs after my daughter moved back in. Next time I need any acoustic and thermal insulation, I'll be sure to come back to this site.
grand
Excellent product and service, thank you
good at making it quiet
very good
really worked well in my flat
Great at reducing sound
amazing slab
Really impressed with the sound reduction
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