Control joint material for masonry from Electronic Blueprint

A suitable specification for control joint material, for use in masonry, is as follows;

Electronic Blueprint and ENVIROSPEC provide building specifications, details and training on safe and sustainable buildings to architects, engineers and builders. Properly constructed control joints, expansion joints and articulation joints in masonry (clay brick or concrete block) will ensure that there is a minimum of cracking due to wall shrinkage or expansion, or footing movement. The integrity criterion of the specified fire resistance levels may dictate the use of intumescent seals.