In association with CatnicSpecifying thermally broken steel lintels for residential projects19 May 2021ProductsCatnic is only lintel to provide guaranteed linear thermal transmittance of 0.05 W/mK or lessCatnic is only lintel to provide guaranteed linear thermal transmittance of 0.05 W/mK or lessRegion: United KingdomMore: CatnicLintelsThermally broken lintelsSpecification and complianceSteel lintels