jameson_uk
Member
So I have a small hot tub sat on top of some 100mm PIR insulation boards I managed to get hold of. Now PIR isn't designed for moisture so I wrapped it in a sheet of damp proof membrane (Capital Valley Plastics Ltd Damp-Proof Membrane Black 1000ga 3 x 4m - Screwfix) I had in the garage.
I am now wondering whether the damp proof membrane is actually transferring the heat and bypassing the insulation.
What I can't figure out is a decent way of actually testing this and working out if the insulation is actually efficient?
I have various temperature probes and I can easily knock some more up but I am struggling as to what to measure and how I would interpret the results anyway as it is going to be affected by ambient conditions.
I am now wondering whether the damp proof membrane is actually transferring the heat and bypassing the insulation.
What I can't figure out is a decent way of actually testing this and working out if the insulation is actually efficient?
I have various temperature probes and I can easily knock some more up but I am struggling as to what to measure and how I would interpret the results anyway as it is going to be affected by ambient conditions.