Birtley 90mm ST90 Thermally Broken Cavity Lintel

Birtley Supatherm ST90 Thermally Broken Cavity Wall Lintel — 90mm Cavity

The Birtley Supatherm ST90 is a standard duty thermally broken cavity wall lintel designed for 90mm cavity construction. Delivering up to 80% reduction in heat loss compared with standard cavity wall lintels, the ST90 helps meet Part L Building Regulations and the Future Homes Standard in standard cavity wall builds.

Available in 8 lengths from 750mm to 2100mm, the ST90 suits a wide range of standard opening widths and avoids the propping typically associated with single leaf lintels. Suitable for all types of masonry and cavity wall construction.

Note: Not suitable for point loads or concrete floors.

Key Features

• Up to 80% reduction in heat loss vs standard cavity wall lintels
• Thermally broken design — minimises cold bridging at the lintel position
• Supports compliance with Part L Building Regulations and the Future Homes Standard
• Suitable for all types of masonry and cavity wall construction
• Avoids propping associated with single leaf lintels
• Cavity width: 90mm
• Available lengths: 750mm, 1050mm, 1200mm, 1350mm, 1500mm, 1650mm, 1950mm, 2100mm
• Manufactured by Birtley to BS EN 845-2 standards

Typical Applications

• Standard openings in cavity masonry wall construction with 90–105mm cavities
• New build residential projects targeting Part L and Future Homes Standard compliance
• Extensions and renovations requiring thermally efficient cavity lintels

Need help selecting the right Supatherm lintel? Contact our lintel experts for advice and nationwide kerbside delivery. Find out more about the Supatherm range on the Birtley website.