Use Plastic Sheet On Raft
This is a good choice as the cost is minimal and the holes can be easily made or enlarged to accommodate your plants.
Use plastic sheet on raft. Uses edit edit source plastic is used to make. Polyethylene sheeting under concrete slab under slab vapor retarders play a very important role in retarding moisture from coming up through the concrete and into the structure. Place the bundles of plastic bottles in the elongated garbage bags. Using 4 plastic barrels building a fram around them would make a raft that will maybe out last you.
Plastic is used for 18 different items including the raft foundation. Food water edit edit source empty cup 4 empty bottle 6 simple purifier 4 advanced purifier 6 cooking pot 6 sprinkler 12 scarecrow 3. Today most experts feel very strongly that engineered films designed specifically for use as vapor retarders should be used as vapor retarders. After this a waterproofing layer is installed if it is a basement.
Secure the garbage bags with duct tape. Polystyrene sheets these are cheap to buy and surprisingly effective in your floating raft system. Plastic can be found floating in the ocean in barrels on vacated rafts and in loot boxes. And then laying of reinforcement is done on spacers over the foundation bed.
Form two sausage shaped floaters. Stretch out two sheets of netting. Not to mention that using 4 plastic barrels would be tons more stable.