The advantage of thsi method is that profiled metal sheet & frames can be shipped as a flatpack & expanding foam can be added later. Bulky expanding foam will not waste space in the shipping container .
Place frame in profiled metal wall / roof sheet
Gather free insulative local materials (in this case polystyrene packaging ) This is the model that Unbuntu Blox use
Spray expanding foam into the gaps via the edges gaps. A piece of foam or polystyrene can be inserted int h other side to stop expanding foma leaking out. This will force it to go into smaller voids when redirected.
Wednesday, 6 April 2016
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