CONCEPT SKETCHING/

EVERY SECOND CARDBOARD TUBE CAN BE FILLED WITH RAMMED EARTH TO ADD TO BOTH THE STRUCTURAL INTEGRITY OF THE WALL AND ANOTHER LAYER OF THERMAL MASS. AS RAMMED EARTH CAN BE CONSTRUCTED ON-SITE IT WILL BE EASY TO ACCOMPLISH WITH MINIMAL TRANSPORT AND TIME COSTS. BEING SOURCED FROM THE GROUND IT IS VULNERABLE TO WATER DAMAGE, SO WE WILL NEED TO MAKE SURE TO PROPERLY WATER PROOF THE INTENDED TUBES IF WE TAKE THIS APPROACH.