25mm Knauf Rocksilk® RS45 Building Slab 1200mm x 600mm (20 per pack)
Free Delivery Over £500 excluding VAT
25mm Knauf Rocksilk® RS45 Building Slab 1200mm x 600mm (20 per pack)
Free Delivery Over £500 excluding VAT
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Product Description
Product Description
Knauf Insulation Rocksilk® RS45 Rock Mineral Wool Slabs: The Ultimate Solution for Thermal, Fire Protection, and Acoustic Applications
Discover the versatility and superior performance of Knauf Insulation Rocksilk® RS45, an exceptional rock mineral wool slab designed to excel in a wide range of applications.
Certified non-combustible with a Euroclass A1 fire classification, this product ensures maximum safety. Manufactured using Knauf Insulation's innovative bio-based ECOSE® Technology, Rocksilk® RS45 not only meets but exceeds the most stringent environmental and health standards.
Key Benefits
- Multipurpose Efficiency: Ideal for diverse applications, from ground and internal floors to roofs and partitions, ensuring comprehensive coverage and convenience.
- Superior Sound Absorption: Crafted from high-density rock mineral wool, Rocksilk® RS45 offers unmatched sound reduction capabilities, making it a top choice for acoustic management.
- Enhanced Fire Resistance: Boasts a melting temperature exceeding 1000°C, providing extended fire resistance superior to many other insulation materials.
Knauf Insulation Rocksilk® RS45 Rock Mineral Wool Slabs available sizes:
| Thickness | Thermal Resistance | Length | Width | Slabs Per Pack |
| 25mm | 0.70m2K/W | 1200mm | 600mm | 20 |
| 30mm | 0.85m2K/W | 1200mm | 600mm | 16 |
| 40mm | 1.10m2K/W | 1200mm | 600mm | 12 |
| 50mm | 1.40m2K/W | 1200mm | 600mm | 10 |
| 60mm | 1.70m2K/W | 1200mm | 600mm | 6 |
| 75mm | 2.10m2K/W | 1200mm | 600mm | 6 |
| 100mm | 2.85m2K/W | 1200mm | 600mm | 5 |
Product Specifications
| Specification | Value |
| Thermal Conductivity | 0.035W/mK |
| Fire Classification | A1 |
| Generic BRE Green Guide Rating | A+ |
| Vapour Resistivity | 5.00 MNs/g.m |
| Material | Rock Mineral Wool |
| Density | 45kg/m3 |
Applications
Rocksilk® RS45 is perfect for:
- Floor Insulation: Including ground floors and separating floors where thermal and acoustic insulation is crucial.
- Roof Insulation: Ideal for pitched roofs at rafter level, enhancing both thermal efficiency and fire safety.
- Wall Insulation: Excellent for internal walls, partitions, and frameworks in both light steel and timber constructions, providing robust fire protection and soundproofing.
Frequently Asked Questions (FAQs)
What is Knauf Insulation Rocksilk® RS45?
Knauf Insulation Rocksilk® RS45 is a rock mineral wool slab designed for versatile applications in thermal insulation, fire protection, and acoustic improvements. It is recognized for its non-combustible properties with a Euroclass A1 fire classification and is made using an eco-friendly, bio-based binder known as ECOSE® Technology.
What is the difference between Knauf Insulation Rocksilk® RS45, RS60, RS80, RS100 and RS140?
The Knauf Insulation Rocksilk® RS range consists of mineral wool slabs that differ primarily in density, which affects their thermal and acoustic insulation properties. The RS45, RS60, RS80, RS100, and RS140 are all designed for various applications but vary by density and, consequently, by their specific use-cases:
- RS45 has a density of 45 kg/m3, making it suitable for a broad range of general applications where moderate insulation is needed.
- RS60 has a density of 60 kg/m3, offering enhanced thermal and acoustic performance suitable for more demanding environments.
- RS80 and RS100 increase in density and are typically used where higher performance insulation is necessary, such as in industrial applications or where superior fire resistance is required.
- RS140 has the highest density at 140 kg/m3, providing the maximum level of insulation and fire protection, making it ideal for specialized applications needing the highest performance material.
Each slab type is also available in various thicknesses to accommodate different requirements, ensuring versatility across a range of construction scenarios.
How does Rocksilk® RS45 contribute to fire safety?
Thanks to its high melting temperature of over 1000°C, Rocksilk® RS45 provides enhanced fire resistance compared to other mainstream insulants. Its composition and structure make it an ideal choice for areas where high levels of fire safety are required, as it effectively helps in containing fires and preventing the spread of flames.
Can Rocksilk® RS45 be used for both thermal and acoustic insulation?
Yes, Rocksilk® RS45 is extremely effective for both thermal and acoustic insulation. It offers excellent levels of sound absorption and reduction, making it suitable for environments where noise reduction is critical, such as in multi-residential buildings or offices. Additionally, its thermal insulation properties help maintain consistent indoor temperatures and reduce energy costs.
What are the environmental benefits of using Rocksilk® RS45?
Rocksilk® RS45 is manufactured using Knauf's ECOSE® Technology, a bio-based binder that is free from formaldehyde, phenols, acrylics, and artificial colours. This makes it more environmentally friendly compared to insulations that use traditional chemical-based binders. Furthermore, the rock mineral wool is sustainable and contributes to a healthier indoor air quality.
Is Rocksilk® RS45 suitable for all building types?
Rocksilk® RS45 is versatile enough to be used in various building types, including residential, commercial, and industrial properties. It can be applied in multiple areas such as internal floors, separating floors, pitched roofs at rafter level, and various wall systems including light steel frame and timber frame walls.
Downloads
Data Sheet PDF download - Click Here
Good To Know (The FAQ's)
Good To Know (The FAQ's)
Ordering & Delivery
How do I place an order with Insulation UK?
You can place an order for delivery anytime online. If you want to collect from our distribution centre in South Yorkshire then please email us your requirements at sales@insulationuk.co.uk
and we will send a payment link and collection instructions. If you can’t see what you are looking for or need more information, then call our team on 03003 034 578 and we can sort your order from there.
How do I know what’s happening with my order and when I will receive it?
When you have placed your order, you will then receive an email confirmation, giving you an order reference number and asking you to double check everything is correct on your order such as delivery address, quantities etc. If there are any amendments to be made, then please reply to your confirmation email with any details.
Once the team has processed the order you will receive an email with a BY delivery date, this is the latest date you will receive your delivery.
Your final email will be a 24/48hr notification, on the day of the delivery if you need a more accurate ETA then contact the office on 03003 034 578.
Do you offer next-day delivery?
Yes, we do on certain lines, you will see our next day delivery products marked as NEXT DAY. Order before 12pm for next day delivery (charges will apply)
How much does delivery cost and how long will it take?
Standard delivery is £50 + VAT for all orders below £500 excluding VAT, above £500 excluding VAT delivery is free. Bespoke deliveries can be made but will incur charges. Each product page gives you an estimate delivery by date. For more accurate information call the team on 03003 034 578
Can I choose a specific delivery date or time slot?
We will endeavour to try and accommodate a preferred date, if you need a delivery on a certain day, then please call our team on 03003 034
578.
Do you deliver nationwide?
We deliver across most of the UK; however, some postcodes are restricted due to their location. Check out our delivery map for more information. If you find that you are in area we don’t deliver to, we have access to a wide range of haulage options, please call the team on 03003 034 578 to discuss your requirements further.
Will the driver help unload the insulation products?
Most of our deliveries are made with vehicles with mechanical off-load (known as a moffett or fork-lift), the driver will leave them in a safe place of your choice. They will help as much as they are allowed but are not insured to bring anything into a property.
What happens if my order arrives damaged or incomplete?
In the unlikely event your order arrives damaged, then please contact within 48 hours at sales@insulationuk.co.uk with any images of the damage and the team will be in touch. If there is anything missing, then notify the team within 48 hours on 03003 034 578
What if my order doesn’t arrive and I have paid for trades to be on site, can I claim anything towards the costs I have incurred?
We advise not to have trades booked in and around the day of your delivery. Things can happen beyond our control, and your delivery may be delayed or abandoned. We cannot be held liable for any consequential loss such as tradesman wages etc.
Product Advice & Support
How do I know which insulation product is right for my project?
With such a variety of insulation products, we fully understand making sure you have the right one can seem daunting. Our team have over 50 years of experience in the construction industry and there isn’t a question they haven’t been asked! Speak to our technical team on 03003 034 578 and they will be happy to offer some help and guidance.
Do you offer technical advice or support before I buy?
Yes we do! Just call 03003 034 578 and ask for our technical team and we will be happy to support you.
Can I speak to someone to confirm product specifications?
Of course you can! There is also a range of data sheets and guides available on the product pages under Technical Information.
Are your products suitable for both DIY and trade customers?
Yes, they are. If you are new to DIY projects involving insulation,
then we advise to always do your research. We have a handy guides section which may help.
Do you offer fire-rated or eco-friendly insulation options?
Yes, we do. Fire ratings are indicated in the specification table on the product page, and our sustainable range is continually growing.
Pricing & Payments
Do you offer trade or bulk-buy discounts?
We always aim to offer the best price online; however we do offer project pricing for larger orders, speak to our sales team with your requirements on 03003 034 578.
What payment methods do you accept?
We accept all major cards including American Express, as well as Apple Pay, Google Pay and PayPal
Can I set up a trade account with credit terms?
We do offer trade accounts, however there are certain criteria we ask for, and any credit account application is subject to credit checks. Call the team on 03003 034 578 to discuss any credit applications.
Do your prices include VAT?
The website has a toggle at the top right of the page so the prices can be displayed including and excluding VAT. VAT, where applicable, is charged at checkout.
Returns & Cancellations
Can I return unwanted insulation products?
Contact the team via email sales@insulationuk.co.uk with the items you wish to return and any other information. Please note if we you need us to collect any unwanted items,
a collection fee will apply.
How do I arrange a return or exchange?
Contact the team via email sales@insulationuk.co.uk or check out our refund policy.
Are there any restocking fees?
Restocking charges will apply in certain instances, please contact the team via email at sales@insulationuk.co.uk check out our refund policy.
What if I’ve ordered the wrong product or size?
Contact the team via phone or email as soon as possible.
Installation & Compliance
Do you offer installation services or just supply materials?
We do not offer any installation services; we are a supplier of insulation and building materials.
Can I get a datasheet or certificate of performance for your products?
Yes, data sheets can be found in the Technical Information drop down on the product page.
How should I store insulation products before installation?
There are a variety of insulation products each with their own storage instructions. Generally, please keep them off the ground, in a dry area, away from the elements.
Sustainability & Quality
Are your insulation products environmentally friendly?
This depends on the individual products, data sheets are available,
and any environmental benefits are noted on the product pages.
Do your products help reduce energy bills?
The correct insulation properly installed can reduce heat loss from a building and therefore help reduce energy costs.
Are your products made in the UK or imported?
With such a wide variety of products some are made in the UK and some are imported.
Customer Service & Support
How can I contact your support team?
By phone on 03003 034 578, email sales@insulationuk.co.uk or via our
webchat online
What are your opening hours?
Monday to Friday 8am to 5pm for sales and technical support, orders can be placed on line 24/7
How quickly can I expect a reply to my enquiry?
We aim to respond to our customers as quickly as possible.
Technical Information
Technical Information
Specifications
- Brand:
- Knauf
- Length:
- 1200 mm
- Width:
- 600.0 mm
- Thickness:
- 25.0 mm
- Material:
- Mineral wool
- Unit Coverage:
- 14.40 M²
- Manufacturers Part Number:
- 2411325
- Thermal Conductivity:
- 0.035 W/mK
- R Value:
- 0.70 M²K/W
- Fire Classifications:
- Euroclass A1
- Qty Per Pack:
- 20 Items
- Applications:
- Walls, Floors, Roofs
