PERMABAN armoured joints (properly called “leave-in-place joint systems”) offer four important benefits:

• They act as permanent formwork, creating a secure boundary or day joint during the concrete pour.
• They allow the concrete slab to contract in a controlled way, to prevent random cracks occurring.
• They protect the construction joint arrises from impact damage once the building is in use, saving the expense of repair.
• They allow efficient load transfer between concrete slabs, for a stable and durable floor.