Step 3: NOW CHOOSE YOUR INSULATION
Our deluxe swim spa covers are made using rigid, polystyrene, heavy-density, EPS100 (20 kg/m3), foam in-fill board.
It is the density of the foam that provides the insulation. This is far more important that the thickness of the foam.
Swim spa covers must be tapered away from the centre to allow rain, water and condensation to run off.
Flat covers cause water to pool on the surface which will eventually make the cover sag in the middle and break.
Your new cover will be tapered like this: