• Knauf Earthwool RS45 (600mm x 1200mm) - All Sizes Loft Insulation
  • Knauf Earthwool RS45 (600mm x 1200mm) - All Sizes Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
  • Knauf RS45 (All Sizes) 600mm x 1200mm Loft Insulation
NaN -Infinity

Knauf

Knauf RS45 (All Sizes) 600mm x 1200mm

Knauf RS45 (All Sizes) 600mm x 1200mm

RS4525MM

EST Delivery Date Est Delivery between 6th Feb and 12th Feb.

£425.54 £510.65
£425.54 £510.65 £0.00
Save Sold out
Thickness

How much will I need?

Coverage required
x

We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project

Based on your total area of 0m2 (inc. 10% wastage) you will need 1 of this product (total coverage ).
Calculate
In stock, ready for delivery
 More payment options
Add sampleAdd sample
Product Information

These products are sold in pallet quantities only. Price listed is per pallet. Please see pack quantities below.

Thickness Sheets Per Pack Pack Coverage Packs Per Pallet
25mm 20 14.4m2 12
30mm 16 11.52m2 12
40mm 12 8.64m2 12
50mm 10 7.20m2 N/A
60mm 8 5.76m2 12
75mm 6 4.32m2 12
100mm 5 3.60m2 N/A

 

Looking for top-notch insulation to enhance the comfort and energy efficiency of your home or commercial space? Look no further than the Knauf RS45 Slabs, available in all sizes at Insulation4less.co.uk! These unfaced rock mineral wool slabs are specially designed to provide superior thermal and acoustic insulation, making them an ideal choice for a wide range of applications in domestic and commercial buildings, as well as industries.

Built for durability, these slabs are non-hygroscopic, odorless, and rot-proof, ensuring a long-lasting and high-performance insulation solution. With a Euroclass A1 fire performance classification according to BS EN ISO 13501-1, these slabs are non-combustible, providing an added layer of safety. What's more, the Knauf RS45 Slabs are environmentally friendly, free from CFCs, HCFCs, and other materials with ozone depletion potential. The inclusion of Ecose Technology, featuring an eco-friendly formaldehyde-free binder made from renewable bio-based materials, further underscores their commitment to sustainability. With a A+ generic BRE Green Guide rating, excellent thermal conductivity of 0.035 W/mK, and a range of densities, these slabs are the perfect choice for those seeking top-notch insulation with both performance and environmental considerations in mind. Upgrade your insulation game with Knauf RS45 from Insulation4less.co.uk today!

Key Features

  • Unfaced rock mineral wool slabs
  • Euroclass A1 fire performance
  • Eco-friendly, zero ozone depletion
  • A+ BRE Green Guide rating
  • Excellent thermal conductivity: 0.035 W/mK
  • Versatile sizes: 600mm x 1200mm
  • Durable, non-hygroscopic, odorless
  • Ideal for diverse insulation needs

 

Frequently Asked Questions

What are the dimensions of the Knauf RS45 Slabs? The slabs come in a standard size of 600mm width x 1200mm length.

What makes Knauf RS45 suitable for insulation? Knauf RS45 Slabs are unfaced rock mineral wool slabs designed for superior thermal and acoustic insulation in various applications.

Is Knauf RS45 fire-resistant? Yes, Knauf RS45 Slabs have Euroclass A1 fire performance classification according to BS EN ISO 13501-1, making them non-combustible.

Are these slabs environmentally friendly? Absolutely. Knauf RS45 Slabs are free from CFCs and HCFCs, with zero ozone depletion potential. They also feature Ecose Technology, an eco-friendly binder made from renewable bio-based materials.

What is the thermal conductivity of Knauf RS45 Slabs? The slabs have an excellent thermal conductivity of 0.035 W/mK.

Knauf RS45 be used in both domestic and commercial buildings? Yes, these slabs are versatile and suitable for insulation in a wide range of settings, including domestic, commercial, and industrial buildings.

Are the slabs durable? Knauf RS45 Slabs are non-hygroscopic, odorless, and rot-proof, ensuring durability and long-lasting performance.

What is the BRE Green Guide rating for Knauf RS45 Slabs? Knauf RS45 Slabs have an A+ generic BRE Green Guide rating, indicating high sustainability.

Do these slabs come in different densities? Yes, Knauf RS45 Slabs feature a wide range of densities to cater to various insulation needs.

    Frequently Bought Together

    Knauf OmniFit Roll 34

    OmniFit Roll 34: Exceptional acoustic absorption and thermal insulation for hassle-free installation in various applications.

    View Product »

    Knauf Rocksilk Flexible Slab

    Knauf Rocksilk Flexible Slab: Sustainable, high-performance insulation for thermal, acoustic, and roof needs, easy to install and eco-friendly.

    View Product »

    Knauf Mineral Wool FrameTherm Roll

    Knauf Mineral Wool FrameTherm Rolls: top-notch thermal and sound insulation for eco-friendly, pest-resistant homes.

    View Product »

    Knauf OmniFit Roll

    OmniFit Roll: Glass mineral wool with high acoustic absorption, thermal efficiency, and friction-fit installation for building insulation.

    View Product »
    Technical Specifications
    Length 1200mm
    Material type Rockfibre
    Thermal conductivity 0.035 W/mK
    Width 600mm
    Datasheets
    Download and view:
    Delivery Information

    EST Delivery Date Est Delivery between 6th Feb and 12th Feb.

    Delivery may be unavailable or may incur additional charges in some remote areas of Scotland and Wales.

    Delivery will always take place on a weekday (Mon - Fri excl. public holidays).

    An exact delivery charge will be calculated at checkout based on your order and location.

    View full details

    Frequently asked questions

    Yes, of course!

    Our team is ready to assist you with any questions and queries you may have.

    Just reach out to us via any of the following methods:

    Call us: 020-3582-6399
    Email us: sales@i4lgroup.co.uk
    or click the Livechat tab at the bottom of your screen.

    As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.

    If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.

    Yes, we offer a variety of flexible payment options to all our customers.

    When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.

    The flexible payment options available to you at checkout will be based on the total value of your order.

    For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:

    • Dedicated trade pricing
    • Loyalty points and rewards
    • A dedicated account manager

    Yes! We even have a price match guarantee.

    We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.

    If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.

    Read more: Price Match Guarantee

    Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:

    • Delivery postcode and address
    • Mobile number
    • Company name
    • A list of required materials and their quantities

    Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.

    You can learn more here: Open a Trade Account

    Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.

    Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.

    Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3582-6399 during opening hours.

    If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.

    Read more: Returns

    Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.

    To avail of this your order must be unused, in its original packaging, and suitable for resale.

    Refunds are issued immediately after the goods are received and inspected by our team.

    If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.

    Prior approval is needed before returning any goods – do not return without authorization.

    Special order items are exempt from returns.

    Read more: Returns