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
Are Isover insulation products fire rated or just fire resistant?
For details on specific Isover products, please visit the relevant product page or guide to find the information you need.
Are Isover products free from harmful additives or VOCs?
Isover products do not contain hazardous substances (e.g., carcinogenic, mutagenic, or toxic for reproduction).
Many of Isover's glass mineral wool products manufactured in the UK have achieved the Eurofins Gold standard for indoor air quality. This means both factory emissions and VOC emissions have been tested according to EN 16516 at regular intervals. Indoor Air Comfort Gold combines all key European and selected global requirements on VOC product emissions.
Do Isover products have Environmental Product Declarations (EPDs)?
Isover offers third-party verified EPDs for many products. You can find a list of them here, or for more information please contact our Technical Support Team.
Do Isover products contribute towards LEED, BREEAM and WELL certifications?
Isover’s insulation solutions can contribute to multiple credit categories in LEED, BREEAM and WELL such as, energy, materials, resources, health and wellbeing, indoor environmental quality, and innovation .
Do Isover products meet UK Building Regulations for fire safety in residential buildings?
Please refer to each product page for specific product characteristics. Please also read all information necessary to satisfy yourself that use of the product meets all relevant national Building Regulations and guidance as well as local, national and other applicable standards relevant for your construction or application, including requirements in relation to fire and applicable height restrictions.