i keep the end of the heated tube out of the water and make sure that any water that's gotten off of it is dried. the background is made of strips also sewn to a foundation. the above numbers were a little low. there also plenty of cubby holes and other storage space spread throughout the cabin. how is that going to affect your work? building scientists, the experts who study how buildings use and lose energy, have known for years that a house loses more energy through the attic than anywhere else, due to the stack effect. 