- SureCav 25
- SureCav 50
- Washers
- Type-W Vent
- Type-W Vent Extender Duct
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Important: Please check that you have ordered the correct depth of SureCav!
Important: Please check that you have ordered the correct depth of SureCav!
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SureCav will help to minimise the wall width and still meet the new building regulations - as low as 300mm with brick builds! From June 2022, achieve a wall U-Value of 0.18W/m2K with an overall 100mm cavity. SureCav is a lightweight alternative to heavy and expensive concrete backing blocks. SureCav can also increase floor space and acts as a rainscreen to the harshest weather. BBA certified and readily available to specifiers, SureCav is the ultimate space and cost saving solution for cavity wall construction. SureCav25 is the only way, anywhere, to form an approved 25mm residual cavity, BBA Approved!
Keep a 300mm width wall and still meet the new 0.18W/m2K U-Value requirements!
New! - Watch our instructional videos here
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All UK mainland: Tuesday 19th December 12pm – Last order for guaranteed Xmas delivery
Ireland: Monday 4th December – Last container shipping date guaranteed before Xmas
Offices closed: 23rd December 2023 - 2nd January 2024
SureCav is a 100% recycled plastic cavity spacer system, replacing the need for concrete backing blocks and helps to construct more sustainable homes. SureCav allows you to achieve a higher quality build, whilst saving money, time and space, as well as lowering your carbon footprint by 6x!
SureCav25 is the only way, anywhere, to form an approved 25mm residual cavity, BBA Approved!
New! - Watch our instructional videos here
SureCav is a Winner! SureCav Limited has won the won the “Best Newcomer” award
Achieve the new 0.18W/m2K U-Value wall requirements and still keep a 300mm wide wall by installing SureCav25 with brick-builds! SureCav25 allows more room in the cavity for insulation in a designed 100mm overall cavity, keeping the wall width to a minimum.
SureCav25 is the only way, anywhere, to form an approved 25mm residual cavity, BBA Approved!
New! - Watch our instructional videos here
SureCav is a Winner! SureCav Limited has won the won the “Best Newcomer” award
Below, we list the advantages of SureCav. SureCav25 has same properties as SureCav50, but with the added benefit of being only 25mm deep! Read more about SureCav25
Learn more about SureCav
SureCav is Unique
With the June 2022 building regulations now in force, with SureCav25 and 75mm insulation, you will not need to amend your drawings to achieve 0.18Wm2K in an overall 100mm cavity. Keep the wall width to a minimun and avoid having to purchase more expensive lintels. A new and lightweight alternative to heavy and expensive concrete backing blocks. SureCav increases floor space and acts as a rainscreen to the harshest weather. BBA certified and readily available to specifiers, SureCav is the ultimate space and cost saving solution for cavity wall construction.
SureCav benefits
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Huge cost savings
Concrete is deceptively expensive. SureCav can significantly lower your building costs. It forms a 25mm or 50mm moisture-free clear cavity, providing a backing board for the stone, slate, brick and flint outer leaf. This makes SureCav up to 2½ cheaper than building with a backing block (see our cost comparison). It’s also environmentally sound, producing a sixth of the CO2 footprint compared to using a concrete block backing wall.
Gain even more space with SureCav25
The gains in space are equally huge. A reduction in wall thickness of just 25mm will increase the internal dimensions of the property by 50mm in each direction and result in an average of 1.6% increased floor space over 2 floors.
Removing the 100mm backing block adds even more internal space. This can rise to 10% additional floor space in very severe weather zones, where a 75mm clear cavity may be required.
See more examples of space-saving benefits here.
Why use Surecav?
Reduce your carbon footprint!
SureCav ticks all the right environmental boxes. It’s made from 100% recycled plastic – a sixth of the carbon footprint of the equivalent in concrete blocks! All without any compromise on performance.
Read more about how eco-friendly SureCav helps the environment here.
Lighter than concrete – and easy to handle. The SureCav equivalent wall area of 40 tonnes of 100mm concrete blocks will easily fit into a single pick-up truck.
As well as costs, SureCav saves you valuable site storage space and is easy to transport. That reduces the risks of injury and dramatically cuts fuel costs.
The future of cavity-wall construction with SureCav25
Now drive down U-Values. SureCav25 allows for more room in the cavity for insulation, thus enhancing the thermal performance of the wall. Where heat conservation is the prime concern, SureCav25 frees up an additional 25mm in the cavity that can be used for extra insulation.
This example shows how a 100mm overall cavity width, comprising 75mm board insulation and a 25mm clear cavity using SureCav25, can achieve U-Values as low as 0.18 W/m²K. Alternatively, a 125mm overall cavity width, comprising 100mm board insulation and a 25mm clear cavity using SureCav25, can achieve U-Values as low as 0.15 W/m²K. (Figures calculated using Kingspan Kooltherm K108 Cavity Board insulation and the Kingspan U-Value calculator)
Say goodbye to moisture problems
SureCav prevents any water penetration through porous masonry. SureCav’s cavity backing system forms a consistent 25mm or 50mm clear cavity in new masonry or timber frame walls.
The air gap – coupled with the moisture-beating design of the SureCav panels – lets you guarantee clean and moisture-free cavities. The SureCav panels will also hold the insulation in place, adding to its effectiveness in preventing heat loss.
Protection from the harshest rain
In very severe exposure zones there is sometimes a requirement for a clear cavity up to 75mm, however, SureCav prevents moisture from bridging the cavity. Additionally, the unique shape of the SureCav pods direct any moisture to the outside leaf, protecting the fabric of the building.
SureCav25 and SureCav50 - easy to source on NBS
SureCav is available on both NBS Source and NBS Chorus – the most popular and comprehensive products for specifiers in the construction industry.
For architects, designers and builders, both SureCav50 and SureCav25 are as easy to source as they are to work with.
Add SureCav to your spec here
A certified choice
You can specify SureCav with confidence. Approved by the British Board of Agrément (BBA certification No. 04/4154).
It’s the only BBA-certified alternative to concrete backing blocks or shuttering that guarantees a moisture and mortar free cavity and allows a minimum 25mm residual cavity.
View BBA certification
Reasons to build with SureCav in all weather zones:
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