buildings energy efficiency concept image - 3d render home thermally insulated with polystyrene walls - concept in jigsaw puzzle

architecture brick brickwork building buildings cladding cold concept conservation construction cross dispersion efficiency energy exterior feature foam heat home hot house illustration image improvement industry insulated insulating insulation insulator isolation jigsaw layer layered layers loss losses material metaphor old panel performance polystyrene protection puzzle render renovation roof saving shape solution stone structure styrofoam summer technology thermal thermally wall walls warm winter