Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm
Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm - 50mm (8.64m2 Per Pack) is backordered and will ship as soon as it is back in stock.
Couldn't load collection availability

Delivery charges will vary depending on your location.
To find out delivery cost to your postcode, add the products your require to your basket and then review your basket, entering the delivery postcode
We look to dispatch all products same-day where possible, we use a close network of couriers we have worked alongside for a number of years and will share any and all shipping updates with you directly.
Transform your space with Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm. This innovative insulation solution is designed for versatile use throughout your home, providing excellent acoustic and thermal performance in pitched roofs, framed external walls, internal partitions, intermediate floors, and timber suspended ground floors.
Key Features:
Exceptional Acoustic and Thermal Performance: With a thermal conductivity of 0.038 W/mK, the ROCKWOOL Flexi Slab significantly reduces heat loss while absorbing sound, ensuring a comfortable living environment.
Unique Flexi-Edged Design: The slab features a flexible edge along one side, allowing for a seamless fit between timber and metal frame systems, reducing the need for cutting and minimizing waste during installation.
Durable & Fire Resistant: Manufactured from renewable volcanic rock, this insulation is fire resistant and classified as A1 under BS EN 13501-1, ensuring safety without compromising performance.
Eco-Friendly Solution: ROCKWOOL’s commitment to sustainability means this insulation contributes to a lower carbon footprint, helping to create environmentally friendly spaces.
Easy Installation: The lightweight design makes these slabs easy to handle and install, saving time and labour costs on site.
Product Specifications:
- Dimensions: 1200mm x 600mm
- Thickness Options: Available in 50mm, 60mm, 70mm, 90mm, 100mm, 140mm, and 180mm
- Material: Rock Mineral Wool
- Thermal Conductivity: 0.038 W/mK
- Fire Rating: A1 (BS EN 13501-1)
Environmental Benefits:
Sustainable Choice: By reducing energy loss and enhancing acoustic comfort, the ROCKWOOL Flexi Slab supports environmentally conscious construction and contributes to energy efficiency.
Zero ODP: Manufactured with no Ozone Depletion Potential, this insulation promotes a greener future for your building projects.
Elevate your building’s performance with ROCKWOOL Flexi Slab Acoustic Insulation 1200mm x 600mm—the ideal solution for achieving outstanding acoustic and thermal comfort.
Applications:
- Partition walls
- Floors and ceilings
- Timber and metal frame constructions
- Residential and commercial projects

Description
Description
Transform your space with Rockwool Flexi Slab Acoustic Insulation 1200mm x 600mm. This innovative insulation solution is designed for versatile use throughout your home, providing excellent acoustic and thermal performance in pitched roofs, framed external walls, internal partitions, intermediate floors, and timber suspended ground floors.
Key Features:
Exceptional Acoustic and Thermal Performance: With a thermal conductivity of 0.038 W/mK, the ROCKWOOL Flexi Slab significantly reduces heat loss while absorbing sound, ensuring a comfortable living environment.
Unique Flexi-Edged Design: The slab features a flexible edge along one side, allowing for a seamless fit between timber and metal frame systems, reducing the need for cutting and minimizing waste during installation.
Durable & Fire Resistant: Manufactured from renewable volcanic rock, this insulation is fire resistant and classified as A1 under BS EN 13501-1, ensuring safety without compromising performance.
Eco-Friendly Solution: ROCKWOOL’s commitment to sustainability means this insulation contributes to a lower carbon footprint, helping to create environmentally friendly spaces.
Easy Installation: The lightweight design makes these slabs easy to handle and install, saving time and labour costs on site.
Product Specifications:
- Dimensions: 1200mm x 600mm
- Thickness Options: Available in 50mm, 60mm, 70mm, 90mm, 100mm, 140mm, and 180mm
- Material: Rock Mineral Wool
- Thermal Conductivity: 0.038 W/mK
- Fire Rating: A1 (BS EN 13501-1)
Environmental Benefits:
Sustainable Choice: By reducing energy loss and enhancing acoustic comfort, the ROCKWOOL Flexi Slab supports environmentally conscious construction and contributes to energy efficiency.
Zero ODP: Manufactured with no Ozone Depletion Potential, this insulation promotes a greener future for your building projects.
Elevate your building’s performance with ROCKWOOL Flexi Slab Acoustic Insulation 1200mm x 600mm—the ideal solution for achieving outstanding acoustic and thermal comfort.
Applications:
- Partition walls
- Floors and ceilings
- Timber and metal frame constructions
- Residential and commercial projects
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

ROCKWOOL Flexi Slab Acoustic Insulation

Key Features

Product Specifications

Environmental Benefits
Enhance Your Building Performance
Our customers tell it better than we do!
Excellent Delivery Service
Order arrived early in morning, delivery staff were excellent and able to place order as close as possible to where I required it. excellent communication through out delivery and after delivery.
Great Experience
Great experience Really pleased with the way my order was dealt with and delivery arrived as advised.
Good product and service
Good product, reasonable price, great service and good customer follow-up. Would recommend and use again.
Great Company
Great company, great product. Delivery was very speedy and items was delivered professionally by a very helpful driver. Would highly recommend.
Great quality wood and fast delivery
Great quality wood and fast delivery The company reached out to make sure that everything was good and the delivery went fine
Excellent service from a great company
Ordered 2T of midnight blue slate chipping (2 pallets of 50 bags each) Very nice product at a great price. Contacted quickly after order to arrange a suitable delivery date. Delivery was as arranged. Customer service is excellent including follow up call to ensure everything went well. All in all I would highly recommend Armstrong Cheshire.
Great Customer Relations
Due to a mistake in communication ( mostly my mistake) the first delivery of bulk aggregate went to an address I used to live at. After asking to have a replacement delivery to the correct address Armstrong Cheshire re-scheduled the delivery within 3 days and with fantastic customer relations. I cannot recommend this company enough.
Ultra Fast Delivery
Ultra fast delivery, technically superlative company, their products are light years ahead of all others. Unbelievable prices. I have been in construction for nearly 70 years now and am still working every day. This company is why I keep getting up in a morning. Thank you dear sirs/ Madam for making life easier
Steel Lintel
Easy to pick product online, said 10 days delivery but got the product in 4 days, excellent service and prices