ANCON, winner of the 2018 Queen’s Award for Innovation, has re-engineered its IHR internal head restraint to accommodate gaps at the wall head of up to 75mm, extending the previous maximum of 50mm.
Head Restraints provide a simple support at the top of masonry panels. They are typically installed in the inner leaf of block work on a framed structure, where the masonry is non-load bearing.
Ancon IHR’s comprise an L-shaped channel section, fitted in the bed joint and perpendicular joint of the top masonry course, and a second sliding component, fixed to the underside of the structural frame. The sliding top section is available in two lengths; one length to suit 25-50mm gaps and a longer length for 51-75mm gaps, ideal where a fire or acoustic barrier is being installed or greater deflections are expected in the primary structure. Design resistances are available in the Ancon Wall Ties and Restraint Fixings technical literature.