Thermal Insulation
Create energy-efficient homes and buildings with thermal insulation
Thermal insulation is a core component of a building’s construction and can be found in the roof, floor, ceiling and wall elements. Mineral wool thermal insulation (also known as glass wool or stone wool) is thermal insulation that comes in many forms, including rolls, batts, pipe sections and slabs.
Mineral wool thermal insulation benefits at a glance:
- Thermal efficiency
- Energy efficiency
- Able to meet U-value requirements on a variety of projects
- Enhance indoor comfort
The benefits of thermal insulation
Depending on your needs, mineral wool can help reduce heat loss in cavity walls, lofts, partitions, ducts and pipes. Let’s look at the core elements.
Thermal insulation can help to reduce heat loss in the winter and heat gain in the summer, which can lead to less energy being needed to sustain the desired temperature. Mineral wool insulation does this by slowing heat loss transfer.
Using thermal insulation helps designers, builders and contractors to meet thermal performance or U‑value requirements in building regulation or certification systems. To help you calculate yours, you can use the Isover U-Value calculator here.
Using thermal insulation can help you achieve a more consistent temperature . Isover UK products have met the standard to be accredited to Eurofins Indoor Air Comfort® Gold Certification - the highest accreditation for indoor air quality.
Learn more about thermal insulation
Get to know thermal insulation better with these articles written by our development teams and insulation specialists.
Discover how a fabric-first approach cuts building energy using insulation
Uncover how mineral wool insulation cuts heat loss, energy costs and supports safety
Isover thermal insulation products
We offer mineral wool insulation for many applications, from external walls and facades to loft insulation and internal partitions. Once installed, it can help to create a more consistent temperature in the internal environment, whilst also contributing to its acoustic performance.
Isover Polterm Max Plus
Non-combustible thermal and acoustic insulation for ventilated rainscreen cladding and overcladding systems
Isover Steel Frame Infill Batt
Thermal insulation for lightweight steel frame walls
Isover Cavity Wall Slab (CWS) 32
Thermal Insulation for External Masonry Cavity Walls
Isover Cavity Wall Slab (CWS) 34
Thermal Insulation for External Masonry Cavity Walls
Isover Cavity Wall Slab (CWS) 36
Thermal Insulation for External Masonry Cavity Walls
Frequently Asked Questions
Can I return an Isover product?
For all our Isover product and delivery information, please read our product and delivery guide here or contact our Customer Service Team:
I cannot find a product I used to buy.
Please contact our Technical Support Team, who are here to help you with the products we have available for all your needs.
Contact details
Opening hours: Monday – Friday 08:30 – 16:30
Telephone: 0115 9456 123
Email: [email protected]
I can’t find an Environmental Product Declaration (EPD) for a product on your website. Where can I find the information?
Please contact our Technical Support Team
Contact details
Opening hours: Monday – Friday 08:30 – 16:30
Telephone: 0115 9456 123
Email: [email protected]
Where is Isover manufactured?
The majority of Isover products are manufactured in the UK at our Runcorn site – with a selection of other products produced in Sweden, Poland, Netherlands and Germany.
Where can I find information on the density of your products?
We do not publish standalone density information, however all Runcorn manufactured products do have their density published in their Environmental Product Declarations. You can find a list of them here. If you require any more information or assistance, please contact our Technical Support Team
Contact details
Opening hours: Monday – Friday 08:30 – 16:30
Telephone: 0115 9456 123
Email: [email protected]