Ursa 35 Cavity Wall Batt is a versatile, semi-rigid glass wool insulation slab designed for cavity wall applications. Treated with a water-repellent additive, it offers excellent moisture resistance, making it suitable for both fully and partially filled masonry cavity walls.
Available in thicknesses ranging from 75mm to 150mm, Ursa 35 Cavity Wall Batt provides flexibility for various construction needs, ensuring an effective fit for different cavity depths. With a thermal conductivity of 0.035 W/mK and a nominal density of 22 kg/m³, this insulation slab offers superior thermal performance, helping to reduce heat loss and improve energy efficiency in buildings.
Safety is a priority with Ursa 35 Cavity Wall Batt, as it is rated Euroclass A1—the highest classification for non-combustible materials. This ensures maximum fire protection for both residential and commercial projects.
Manufactured to meet BS EN 13162 and BBA 09/4624 standards, Ursa 35 Cavity Wall Batt delivers a reliable insulation solution, combining energy efficiency, fire safety, and moisture resistance for long-lasting performance in masonry cavity walls.
Ursa
Insulation
Size
75mm / 4.91m2
100mm / 3.69m2
125mm / 3.07m2
150mm / 2.46m2
{PRODUCT_DESCRIPTION}
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
FAQ
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online.
The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days. Please get in touch before you order if you need a specifc delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page.
Some orders are delivered on our own vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Downloadable information can be found here:
Ursa 35 Cavity Wall Batt is a versatile, semi-rigid glass wool insulation slab designed for cavity wall applications. Treated with a water-repellent additive, it offers excellent moisture resistance, making it suitable for both fully and partially filled masonry cavity walls.
Available in thicknesses ranging from 75mm to 150mm, Ursa 35 Cavity Wall Batt provides flexibility for various construction needs, ensuring an effective fit for different cavity depths. With a thermal conductivity of 0.035 W/mK and a nominal density of 22 kg/m³, this insulation slab offers superior thermal performance, helping to reduce heat loss and improve energy efficiency in buildings.
Safety is a priority with Ursa 35 Cavity Wall Batt, as it is rated Euroclass A1—the highest classification for non-combustible materials. This ensures maximum fire protection for both residential and commercial projects.
Manufactured to meet BS EN 13162 and BBA 09/4624 standards, Ursa 35 Cavity Wall Batt delivers a reliable insulation solution, combining energy efficiency, fire safety, and moisture resistance for long-lasting performance in masonry cavity walls.
Ursa
Insulation
Size
75mm / 4.91m2
100mm / 3.69m2
125mm / 3.07m2
150mm / 2.46m2
{PRODUCT_DESCRIPTION}
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online. The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days.
Please get in touch before you order if you need a specific delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page. Some orders are delivered on our vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations, we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Ursa 35 Cavity Wall Batt is a semi-rigid glass wool insulation slab for cavity walls, available in thicknesses from 75mm to 150mm. With a thermal conductivity of 0.035 W/mK and Euroclass A1 fire rating, it provides superior energy efficiency and fire safety.
Ursa 35 Cavity Wall Batt 1350mm x 455mm - 75mm / 4.91m2
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.
Ursa 35 Cavity Wall Batt is a versatile, semi-rigid glass wool insulation slab designed for cavity wall applications. Treated with a water-repellent additive, it offers excellent moisture resistance, making it suitable for both fully and partially filled masonry cavity walls.
Available in thicknesses ranging from 75mm to 150mm, Ursa 35 Cavity Wall Batt provides flexibility for various construction needs, ensuring an effective fit for different cavity depths. With a thermal conductivity of 0.035 W/mK and a nominal density of 22 kg/m³, this insulation slab offers superior thermal performance, helping to reduce heat loss and improve energy efficiency in buildings.
Safety is a priority with Ursa 35 Cavity Wall Batt, as it is rated Euroclass A1—the highest classification for non-combustible materials. This ensures maximum fire protection for both residential and commercial projects.
Manufactured to meet BS EN 13162 and BBA 09/4624 standards, Ursa 35 Cavity Wall Batt delivers a reliable insulation solution, combining energy efficiency, fire safety, and moisture resistance for long-lasting performance in masonry cavity walls.
Ursa 35 Cavity Wall Batt is a semi-rigid glass wool insulation slab treated with a water-repellent additive, designed to provide effective thermal insulation in fully and partially filled masonry cavity walls. Its high-performance design makes it ideal for both residential and commercial construction projects.
Available in thicknesses from 75mm to 150mm, Ursa 35 Cavity Wall Batt delivers outstanding thermal performance with a thermal conductivity of 0.035 W/mK. Its nominal density of 22 kg/m³ ensures effective heat retention while offering protection against moisture.
Why Choose Ursa 35 Cavity Wall Batt?
Ursa 35 Cavity Wall Batt is a versatile insulation product that combines energy efficiency, moisture resistance, and fire safety. Its Euroclass A1 fire rating provides the highest level of protection, while its water-repellent properties make it ideal for masonry cavity walls in both fully and partially filled applications. Certified to BS EN 13162 and BBA 09/4624, it offers peace of mind and long-lasting performance.
Key Features
Ursa 35 Cavity Wall Batt offers excellent thermal insulation with a conductivity of 0.035 W/mK. Available in thicknesses from 75mm to 150mm, it is non-combustible with a Euroclass A1 fire rating. Designed for both fully and partially filled masonry cavity walls, its semi-rigid structure ensures ease of installation and a secure fit.
Technical Specifications
Ursa 35 Cavity Wall Batt provides thermal conductivity of 0.035 W/mK and has a nominal density of 22 kg/m³. It is available in thicknesses of 75mm, 100mm, 125mm, and 150mm. The product features a Euroclass A1 fire rating, ensuring non-combustibility. It is certified to BS EN 13162 and BBA 09/4624 standards.
Energy Efficiency and Safety Guaranteed
Ursa 35 Cavity Wall Batt ensures superior thermal performance with a 0.035 W/mK thermal conductivity, improving energy efficiency in buildings. Its Euroclass A1 fire rating guarantees the highest level of safety, while its water-repellent properties protect against moisture infiltration, making it a trusted solution for masonry cavity walls.
Have a question?
If you have any questions about our products or would like to learn more about our shipping options please feel free to contact one of our team today.
