External Wall Insulation

Whether it’s protecting your property or reducing operational costs, our tailored insulation products ensure unmatched quality and reliability. Take a look at our range and discover why top businesses trust Belgrade Insulations for their external wall insulation needs.

Explore our range of exterior wall insulation

EcoTherm Eco-Versal

Universal solution ideal for insulating timber frame walls and can also be used to insulate solid walls internally. Eco-Versal boards are a thermally efficient solution for pitched roof and loft insulation.

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Celotex GA4000

Celotex GA4000 is a general purpose insulation board for floors, walls and roofs. Providing the user with a range of thermal insulation solutions.

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ISOVER Timber Frame Batt 32

ISOVER Timber Frame Batt 32 is a glass mineral wool batt providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible batts are 570mm wide to fit between standard timber studs. It can also be used as the insulation between the joists in flat roofs.

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ISOVER Timber Frame Batt 35

ISOVER Timber Frame Batt 35 is a glass mineral wool batt providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible batts are 570mm wide to fit between standard timber studs. It can also be used as the insulation between the joists in flat roofs.

Select options This product has multiple variants. The options may be chosen on the product page Details
ISOVER Timber Frame Batt 40

ISOVER Timber Frame Batt 40 is a glass mineral wool batt providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible batts are 570mm wide to fit between standard timber studs. It can also be used as the insulation between the joists in flat roofs.

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ISOVER Timber Frame Party Wall Roll

A glass mineral wool roll designed to reduce the passage of sound in timber frame separating (party) wall cavities.

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ISOVER Timber Frame Roll 32

ISOVER Timber Frame Roll 32 is a glass mineral wool roll providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible rolls are pre-cut to 2 x 570mm widths to fit between standard 600mm stud centres. It can also be used as the insulation between the joists in flat roofs.

Select options This product has multiple variants. The options may be chosen on the product page Details
ISOVER Timber Frame Roll 35

ISOVER Timber Frame Roll 35 is a glass mineral wool roll providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible rolls are pre-cut to 2 x 570mm or 3 x 400mm widths. It can also be used as the insulation between the joists in flat roofs.

Select options This product has multiple variants. The options may be chosen on the product page Details
ISOVER Timber Frame Roll 40

ISOVER Timber Frame Roll 40 is a glass mineral wool roll providing thermal performance and acoustic benefits in timber frame walls. Supplied in a range of thicknesses, the strong, resilient and flexible rolls are pre-cut to 2 x 570mm widths to fit between standard 600mm stud centres. It can also be used as the insulation between the joists in flat roofs.

Select options This product has multiple variants. The options may be chosen on the product page Details
Kingspan Kooltherm K112 Framing Board

Insulation for timber and steel framing systems.

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Kingspan Kooltherm K5 External Wall Board

External insulation for masonry walls.

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Kingspan Thermawall TW50

Partial fill cavity wall insulation.

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Your buyer’s guide to outside wall insulation

External wall insulation (EWI), also known as solid wall insulation, involves applying insulation material to the outside of your building’s walls.

This method not only enhances thermal efficiency but also strengthens weather resistance and improves aesthetic appeal – a win-win. However, what do you need to know before investing in insulation for external walls?

Types of insulation for external walls

Choosing the right external wall insulation systems depends on several factors: wall dimensions, desired thermal performance, and of course, your budget. Here are some top contenders to consider:

Rockwool mineral wool: A durable, soundproof, water-repellent, and breathable external wall insulation option. Although it is typically available in rolls, rockwool external wall insulation is compressed into rigid boards.
Expanded polystyrene (EPS): Made from polystyrene balls fused into a board, EPS is a popular choice due to its affordability, lightweight nature, and ease of installation.
Kingspan Kooltherm K5: A phenolic board known for its exceptional thermal performance. Though it comes with a higher price tag, its efficiency makes it a firm favourite.

With many options available, consulting a specialist ensures you find the perfect fit for your needs.

How thick do you need your external building insulation?

Wondering about the external wall insulation thickness requirements? Well, while 50mm of insulation can definitely boost your U-value, it’s not always the most effective choice. Opting for 100mm insulation can make a significant impact, delivering far greater energy savings.

The thicker the insulation, the bigger the savings. So, for maximum efficiency and cost reduction, 100mm is the way to go!

Benefits of insulation for external walls

Did you know most of your property’s heat escapes through its walls, especially if it’s a solid wall rather than a cavity wall? According to the UK Government’s Department of Energy and Climate Change, boosting your building’s energy efficiency with external wall insulation can increase its value by up to 38%. That’s a massive advantage, but here are a few more:

Better temperature control in your building, leading to fewer cold chills in the winter.
Compared to internal wall insulation, the installation process shouldn’t disrupt your business operations too much.
Enhanced weatherproofing to protect against rain and wind.
Improved sound resistance
Reduced condensation which will help reduce the chances of mould and decay.

While it may alter your property’s appearance and require planning permission, external wall insulation is a surefire way to keep the cold out and the warmth in. Ready to upgrade? Talk to our team today.

Frequently Asked Questions

How much does external wall insulation cost?

The cost varies, but it mostly depends on the size of your property and the type of insulation you buy. Additionally, installation costs can vary based on the specific components required and whether scaffolding is necessary for your project. To get an accurate estimate, it’s best to consult with a professional installer who can assess your property’s needs.

Do I need planning permission for external wall insulation?

Generally, planning permission is not required for external wall insulation, as it is not classified as an extension. However, if the insulation significantly changes the exterior appearance of your property, or if your home is located in a conservation area or is a listed building, you may need planning permission. To ensure you comply with all regulations, it’s advisable to consult your local planning authority before starting the installation.

External Wall Insulation

Explore our range of exterior wall insulation

EcoTherm Eco-Versal

Celotex GA4000

ISOVER Timber Frame Batt 32

ISOVER Timber Frame Batt 35

ISOVER Timber Frame Batt 40

ISOVER Timber Frame Party Wall Roll

ISOVER Timber Frame Roll 32

ISOVER Timber Frame Roll 35

ISOVER Timber Frame Roll 40

Kingspan Kooltherm K112 Framing Board

Kingspan Kooltherm K5 External Wall Board

Kingspan Thermawall TW50

Types of insulation for external walls

How thick do you need your external building insulation?

Benefits of insulation for external walls

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