Catnic delivers unique thermal efficiency for new luxury housing development, Lorton Park

When specifying lintels for its new, large-scale housing development, Property Management Company AKI Ltd looked to Catnic’s Thermally Broken Lintel (TBL), as its design achieves superior thermal performance, whilst offering the same stable installation benefits of a traditional cavity wall lintel.

Located in Weymouth, the Lorton Park development has been designed and built with energy and water conservation in mind. With a particular importance placed on the selection and quality of the materials used, Catnic’s innovative TBL was specified for all 46 luxury properties.

BRE certified, the Catnic TBL range delivers industry leading linear thermal transmittance Psi values of 0.02 to 0.05 W/mK and safe working loads in line with Catnic’s existing Cavity wall lintels.

Chris Watts, Sales Manager at Jewson, worked with Mr Hidari on the product specification,

“After comparing different lintels on the market it became clear that Catnic TBL’s were best suited to the specific project requirements.

“Due to the medium density concrete blocks being used onsite, AKI Ltd needed a product that could meet its thermal performance requirements and easily achieve the build’s load requirements – the composite design of the TBL made it the perfect choice.”

As the development is marketed on its energy efficient credentials, it was vital that the building materials specified lived up to their claims.

The specifically designed flat top of Catnic’s Thermally Broken Lintel provides a simple, consistent junction with the cavity wall insulation. This removes the reliance on site workmanship, reducing the risk of a ‘performance gap’. There are also no brackets connecting the inner and outer leaf of the lintel and therefore there are no additional point thermal bridges that need to be considered

The large scale development project also benefitted from Catnic Lintel Advance Scheduling System (CLASS). Through the fully comprehensive scheduling service, Catnic’s expert team created a consice document which detailed lintel descriptions, price, delivery time and a guaranteed structural accuracy.

“This has been a huge, complex project and we needed a product that could deliver on the specific structural and thermal requirements,” commented Mr Hidari. “As the only lintel on the market with a complete thermal break, it seemed like the ideal product. I was particularly impressed by the Catnic team who provided us with a full design and specification for the entire development.”

For further information on Catnic’s Thermally Broken Lintel range, please visit