QMG Variable Size: 275

They Housing Ties are used to join the two leaves of a cavity wall together, allowing the two parts to act as a homogeneous unit. Hidden from view after construction, wall ties play a vital role in ensuring the stability of a building. Type 4 wall tie for use in the external walls of houses and small commercial developments up to 10 metres in height. It is also a Type A tie for internal separating walls of buildings of any height.