Solar-type pool cover

A solar-type pool cover comprising

• a first transparent layer for passing sunlight therethrough;
• a second transparent layer secured to said first layer and defining a plurality of pockets to contain air therein;
• and
• a third layer secured to said second layer to seal air within said pockets, said third layer having an opaque surface on one side facing said second layer to heat the air in said pockets in response to sunlight impinging on said opaque surface through said first and second layer and a reflective surface on an opposite side to face a pool of water and to transfer heat from said third layer to the pool of water and to reflect heat from the pool of water back into the pool of water.

A pool cover comprising

• a first transparent layer for passing sunlight therethrough;
• a second opaque layer secured to said first layer for absorbing sunlight passing through said first layer;
• a plurality of longitudinally and transversely spaced discrete pockets in said first layer facing said opaque layer and sealed relative to said opaque layer to encapsulate air therein whereby sunlight passing through said first layer heats said opaque layer and the air in said pockets to form an insulating barrier over a pool surface;
• and
• a third reflective layer secured to said opaque layer to face a pool of water and to transfer heat from said opaque layer to the pool of water.