Scientific (!) test of a 300mm long piece of JJI joist

Testing a short piece of UK made JJI joist with Nick Grant, PH consultant from Elemental Solutions. The inner flange is clamped in the vice to replicate an i- beam stud with the inner flange supported on the wall plate and the outer flange cantilvered over the perimeter insulation. In this case we have 96kg added to a 300mm long piece, the equivalent of loading each stud with 320kg per lineal metre, or 533kg per square metre of external wall, which is about 14 times the weight of a normal loading from a cement board and render.